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FFS [Fifa Sport] Token

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FIFASPORT - the next innovative DeFi combining with DAO and Fan Sport NFT release to provide holders high passive returns with APY 200,000%

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Laser Scorebeta Last Audit: 13 October 2022

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Token is either risky or in presale. For presale 30+ is a fine score.

FifaSport.swapAndSendDividends(uint256) (contracts/FifaSportToken.sol#653-669) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
FifaSport.sendBNB(address,uint256) (contracts/FifaSportToken.sol#216-221) sends eth to arbitrary user
Dangerous calls:
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
FifaSport.swapAndLiquify(uint256) (contracts/FifaSportToken.sol#621-651) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411):
External calls:
- rebase() (contracts/FifaSportToken.sol#384)
- IUniswapV2Pair(uniswapV2Pair).sync() (contracts/FifaSportToken.sol#296)
- dividendTracker.updateMinimumTokenBalanceForDividends(_totalSupply / 10 ** 5) (contracts/FifaSportToken.sol#298)
- swapBack() (contracts/FifaSportToken.sol#388)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- dividendTracker.distributeDividends(balanceRewardToken) (contracts/FifaSportToken.sol#667)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(half,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#631-637)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(contractTokenBalance,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#592-598)
External calls sending eth:
- swapBack() (contracts/FifaSportToken.sol#388)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
State variables written after the call(s):
- _rBalance[sender] = _rBalance[sender] - rAmount (contracts/FifaSportToken.sol#391)
- _rBalance[recipient] = _rBalance[recipient] + amountReceived (contracts/FifaSportToken.sol#397)
- amountReceived = takeFee(sender,rAmount,recipient) (contracts/FifaSportToken.sol#394-396)
- _rBalance[_parents[i]] = _rBalance[_parents[i]] + _parentFee (contracts/FifaSportToken.sol#453)
- _rBalance[address(this)] = _rBalance[address(this)] + (feeAmount - _amountDaoReward) (contracts/FifaSportToken.sol#461)
Reentrancy in FifaSport.swapBack() (contracts/FifaSportToken.sol#560-619):
External calls:
- swapAndLiquify(liquidityTokens) (contracts/FifaSportToken.sol#574)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(half,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#631-637)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
External calls sending eth:
- swapAndLiquify(liquidityTokens) (contracts/FifaSportToken.sol#574)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
State variables written after the call(s):
- _basicTransfer(address(this),DEAD,firePitTokens) (contracts/FifaSportToken.sol#579)
- _rBalance[from] = _rBalance[from] - rAmount (contracts/FifaSportToken.sol#362)
- _rBalance[to] = _rBalance[to] + rAmount (contracts/FifaSportToken.sol#363)
Apply the check-effects-interactions pattern.

Additional information: link

FifaSport._totalSupply (contracts/FifaSportToken.sol#54) shadows:
- ERC20._totalSupply (@openzeppelin/contracts/token/ERC20/ERC20.sol#40)
FifaSport._allowances (contracts/FifaSportToken.sol#16) shadows:
- ERC20._allowances (@openzeppelin/contracts/token/ERC20/ERC20.sol#38)
Remove the state variable shadowing.

Additional information: link

FifaSport.claimStuckTokens(address) (contracts/FifaSportToken.sol#201-210) ignores return value by ERC20token.transfer(msg.sender,balance) (contracts/FifaSportToken.sol#209)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link


Too many vulnerabilities (Unchecked transfer, Reentrancy vulnerability, etc.). High risk of a scam. DYOR & manual audit are advised.

FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411) uses a dangerous strict equality:
- recipient == uniswapV2Pair && launchTime == 0 && amount > 0 (contracts/FifaSportToken.sol#377)
Don't use strict equality to determine if an account has enough Ether or tokens.

Additional information: link


Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.


Combination 2: Unchecked transfer + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.


Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.


Contract ownership is not renounced (belongs to a wallet)

FifaSport._transferFrom(address,address,uint256).lastProcessedIndex (contracts/FifaSportToken.sol#405) is a local variable never initialized
FifaSport.takeFee(address,uint256,address).result (contracts/FifaSportToken.sol#438) is a local variable never initialized
FifaSport._transferFrom(address,address,uint256).iterations (contracts/FifaSportToken.sol#405) is a local variable never initialized
FifaSport.swapBack().firePitTokens (contracts/FifaSportToken.sol#571) is a local variable never initialized
FifaSport.swapBack().liquidityTokens (contracts/FifaSportToken.sol#570) is a local variable never initialized
FifaSport.takeFee(address,uint256,address)._amountDaoReward (contracts/FifaSportToken.sol#419) is a local variable never initialized
FifaSport._transferFrom(address,address,uint256).claims (contracts/FifaSportToken.sol#405) is a local variable never initialized
Initialize all the variables. If a variable is meant to be initialized to zero, explicitly set it to zero to improve code readability.

Additional information: link

FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411) ignores return value by dividendTracker.process(gas) (contracts/FifaSportToken.sol#405-407)
FifaSport.takeFee(address,uint256,address) (contracts/FifaSportToken.sol#413-465) ignores return value by fifaSportDao.getParents(recipient) (contracts/FifaSportToken.sol#438-442)
FifaSport.claim() (contracts/FifaSportToken.sol#781-783) ignores return value by dividendTracker.processAccount(address(msg.sender),false) (contracts/FifaSportToken.sol#782)
FifaSport.claimAddress(address) (contracts/FifaSportToken.sol#785-787) ignores return value by dividendTracker.processAccount(address(claimee),false) (contracts/FifaSportToken.sol#786)
FifaSport.swapAndLiquify(uint256) (contracts/FifaSportToken.sol#621-651) ignores return value by uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
Ensure that all the return values of the function calls are used.

Additional information: link

IDividendTracker.allowance(address,address).owner (contracts/interfaces/IDividendTracker.sol#5) shadows:
- IDividendTracker.owner() (contracts/interfaces/IDividendTracker.sol#26) (function)
Rename the local variables that shadow another component.

Additional information: link

FifaSport.setSwapBackSettings(bool,uint256) (contracts/FifaSportToken.sol#671-675) should emit an event for:
- swapThreshold = rSupply / 100000 * _percentage_base100000 (contracts/FifaSportToken.sol#674)
Emit an event for critical parameter changes.

Additional information: link

FifaSport.constructor(address,address,address,address)._usdToken (contracts/FifaSportToken.sol#115) lacks a zero-check on :
- usdToken = _usdToken (contracts/FifaSportToken.sol#137)
FifaSport.updateUniswapV2Router(address)._uniswapV2Pair (contracts/FifaSportToken.sol#251-254) lacks a zero-check on :
- uniswapV2Pair = _uniswapV2Pair (contracts/FifaSportToken.sol#255)
Check that the address is not zero.

Additional information: link

FifaSport.rebase() (contracts/FifaSportToken.sol#284-301) performs a multiplication on the result of a division:
-times = (block.timestamp - lastRebasedTime) / 1800 (contracts/FifaSportToken.sol#286)
-lastRebasedTime = lastRebasedTime + (times * 1800) (contracts/FifaSportToken.sol#294)
FifaSport.takeFee(address,uint256,address) (contracts/FifaSportToken.sol#413-465) performs a multiplication on the result of a division:
-_parentFee = (_amountDaoReward / 100) * 5 (contracts/FifaSportToken.sol#446)
FifaSport.setSwapBackSettings(bool,uint256) (contracts/FifaSportToken.sol#671-675) performs a multiplication on the result of a division:
-swapThreshold = rSupply / 100000 * _percentage_base100000 (contracts/FifaSportToken.sol#674)
FifaSport.takeFee(address,uint256,address) (contracts/FifaSportToken.sol#413-465) performs a multiplication on the result of a division:
-_parentFee = (_amountDaoReward / 10) * 2 (contracts/FifaSportToken.sol#451)
FifaSport.takeFee(address,uint256,address) (contracts/FifaSportToken.sol#413-465) performs a multiplication on the result of a division:
-_parentFee = (_amountDaoReward / 10) * 4 (contracts/FifaSportToken.sol#448)
Consider ordering multiplication before division.

Additional information: link

Variable 'FifaSport._transferFrom(address,address,uint256).claims (contracts/FifaSportToken.sol#405)' in FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (contracts/FifaSportToken.sol#406)
Variable 'FifaSport._transferFrom(address,address,uint256).iterations (contracts/FifaSportToken.sol#405)' in FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (contracts/FifaSportToken.sol#406)
Variable 'FifaSport._transferFrom(address,address,uint256).lastProcessedIndex (contracts/FifaSportToken.sol#405)' in FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (contracts/FifaSportToken.sol#406)
Variable 'FifaSport.takeFee(address,uint256,address).result (contracts/FifaSportToken.sol#438)' in FifaSport.takeFee(address,uint256,address) (contracts/FifaSportToken.sol#413-465) potentially used before declaration: _parents = result (contracts/FifaSportToken.sol#439)
Move all variable declarations prior to any usage of the variable, and ensure that reaching a variable declaration does not depend on some conditional if it is used unconditionally.

Additional information: link

Reentrancy in FifaSport.swapBack() (contracts/FifaSportToken.sol#560-619):
External calls:
- swapAndLiquify(liquidityTokens) (contracts/FifaSportToken.sol#574)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(half,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#631-637)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(contractTokenBalance,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#592-598)
- sendBNB(address(treasuryWallet),marketingBNB) (contracts/FifaSportToken.sol#604)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- sendBNB(address(sustainabilityWallet),sustainabilityAmount) (contracts/FifaSportToken.sol#609)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- swapAndSendDividends(rewardBNB) (contracts/FifaSportToken.sol#614)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- dividendTracker.distributeDividends(balanceRewardToken) (contracts/FifaSportToken.sol#667)
External calls sending eth:
- swapAndLiquify(liquidityTokens) (contracts/FifaSportToken.sol#574)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
- sendBNB(address(treasuryWallet),marketingBNB) (contracts/FifaSportToken.sol#604)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- sendBNB(address(sustainabilityWallet),sustainabilityAmount) (contracts/FifaSportToken.sol#609)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- swapAndSendDividends(rewardBNB) (contracts/FifaSportToken.sol#614)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
State variables written after the call(s):
- lastSwapTime = block.timestamp (contracts/FifaSportToken.sol#618)
Reentrancy in FifaSport.updateUniswapV2Router(address) (contracts/FifaSportToken.sol#244-260):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this),uniswapV2Router.WETH()) (contracts/FifaSportToken.sol#251-254)
State variables written after the call(s):
- _allowances[address(this)][address(uniswapV2Router)] = MAX (contracts/FifaSportToken.sol#259)
- uniswapV2Pair = _uniswapV2Pair (contracts/FifaSportToken.sol#255)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in FifaSport.swapAndSendDividends(uint256) (contracts/FifaSportToken.sol#653-669):
External calls:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- dividendTracker.distributeDividends(balanceRewardToken) (contracts/FifaSportToken.sol#667)
External calls sending eth:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
Event emitted after the call(s):
- SendDividends(balanceRewardToken) (contracts/FifaSportToken.sol#668)
Reentrancy in FifaSport.updateDividendTracker(address) (contracts/FifaSportToken.sol#683-701):
External calls:
- dividendTracker.init() (contracts/FifaSportToken.sol#687)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (contracts/FifaSportToken.sol#693)
- dividendTracker.excludeFromDividends(address(this)) (contracts/FifaSportToken.sol#694)
- dividendTracker.excludeFromDividends(DEAD) (contracts/FifaSportToken.sol#695)
- dividendTracker.excludeFromDividends(address(uniswapV2Router)) (contracts/FifaSportToken.sol#696)
- dividendTracker.excludeFromDividends(address(uniswapV2Pair)) (contracts/FifaSportToken.sol#697)
- dividendTracker.excludeFromDividends(address(fifaSportDao)) (contracts/FifaSportToken.sol#698)
Event emitted after the call(s):
- UpdateDividendTracker(newAddress,address(dividendTracker)) (contracts/FifaSportToken.sol#700)
Reentrancy in FifaSport._setAutomatedMarketMakerPair(address,bool) (contracts/FifaSportToken.sol#268-277):
External calls:
- dividendTracker.excludeFromDividends(pair) (contracts/FifaSportToken.sol#273)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (contracts/FifaSportToken.sol#276)
Reentrancy in FifaSport.swapBack() (contracts/FifaSportToken.sol#560-619):
External calls:
- swapAndLiquify(liquidityTokens) (contracts/FifaSportToken.sol#574)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(half,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#631-637)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
External calls sending eth:
- swapAndLiquify(liquidityTokens) (contracts/FifaSportToken.sol#574)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
Event emitted after the call(s):
- Transfer(from,to,amount) (contracts/FifaSportToken.sol#364)
- _basicTransfer(address(this),DEAD,firePitTokens) (contracts/FifaSportToken.sol#579)
Reentrancy in FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411):
External calls:
- rebase() (contracts/FifaSportToken.sol#384)
- IUniswapV2Pair(uniswapV2Pair).sync() (contracts/FifaSportToken.sol#296)
- dividendTracker.updateMinimumTokenBalanceForDividends(_totalSupply / 10 ** 5) (contracts/FifaSportToken.sol#298)
- swapBack() (contracts/FifaSportToken.sol#388)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- dividendTracker.distributeDividends(balanceRewardToken) (contracts/FifaSportToken.sol#667)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(half,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#631-637)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(contractTokenBalance,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#592-598)
- dividendTracker.setBalance(address(sender),balanceOf(sender)) (contracts/FifaSportToken.sol#399)
- dividendTracker.setBalance(address(recipient),balanceOf(recipient)) (contracts/FifaSportToken.sol#400)
- dividendTracker.process(gas) (contracts/FifaSportToken.sol#405-407)
External calls sending eth:
- swapBack() (contracts/FifaSportToken.sol#388)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (contracts/FifaSportToken.sol#406)
- Transfer(sender,recipient,amountReceived / rate) (contracts/FifaSportToken.sol#409)
Reentrancy in FifaSport.swapAndLiquify(uint256) (contracts/FifaSportToken.sol#621-651):
External calls:
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(half,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#631-637)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
External calls sending eth:
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
Event emitted after the call(s):
- SwapAndLiquify(half,newBalance,otherHalf) (contracts/FifaSportToken.sol#650)
Reentrancy in FifaSport.swapBack() (contracts/FifaSportToken.sol#560-619):
External calls:
- swapAndLiquify(liquidityTokens) (contracts/FifaSportToken.sol#574)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(half,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#631-637)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(contractTokenBalance,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#592-598)
- sendBNB(address(treasuryWallet),marketingBNB) (contracts/FifaSportToken.sol#604)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- sendBNB(address(sustainabilityWallet),sustainabilityAmount) (contracts/FifaSportToken.sol#609)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- swapAndSendDividends(rewardBNB) (contracts/FifaSportToken.sol#614)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- dividendTracker.distributeDividends(balanceRewardToken) (contracts/FifaSportToken.sol#667)
External calls sending eth:
- swapAndLiquify(liquidityTokens) (contracts/FifaSportToken.sol#574)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
- sendBNB(address(treasuryWallet),marketingBNB) (contracts/FifaSportToken.sol#604)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- sendBNB(address(sustainabilityWallet),sustainabilityAmount) (contracts/FifaSportToken.sol#609)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- swapAndSendDividends(rewardBNB) (contracts/FifaSportToken.sol#614)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
Event emitted after the call(s):
- SendDividends(balanceRewardToken) (contracts/FifaSportToken.sol#668)
- swapAndSendDividends(rewardBNB) (contracts/FifaSportToken.sol#614)
Reentrancy in FifaSport.rebase() (contracts/FifaSportToken.sol#284-301):
External calls:
- IUniswapV2Pair(uniswapV2Pair).sync() (contracts/FifaSportToken.sol#296)
- dividendTracker.updateMinimumTokenBalanceForDividends(_totalSupply / 10 ** 5) (contracts/FifaSportToken.sol#298)
Event emitted after the call(s):
- LogRebase(rebase_count,_totalSupply) (contracts/FifaSportToken.sol#300)
Reentrancy in FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411):
External calls:
- rebase() (contracts/FifaSportToken.sol#384)
- IUniswapV2Pair(uniswapV2Pair).sync() (contracts/FifaSportToken.sol#296)
- dividendTracker.updateMinimumTokenBalanceForDividends(_totalSupply / 10 ** 5) (contracts/FifaSportToken.sol#298)
- swapBack() (contracts/FifaSportToken.sol#388)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- dividendTracker.distributeDividends(balanceRewardToken) (contracts/FifaSportToken.sol#667)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(half,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#631-637)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(contractTokenBalance,0,path,address(this),block.timestamp) (contracts/FifaSportToken.sol#592-598)
External calls sending eth:
- swapBack() (contracts/FifaSportToken.sol#388)
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,address(dividendTracker),block.timestamp) (contracts/FifaSportToken.sol#658-663)
- uniswapV2Router.addLiquidityETH{value: newBalance}(address(this),otherHalf,0,0,DEAD,block.timestamp) (contracts/FifaSportToken.sol#641-648)
Event emitted after the call(s):
- DistributionDaoReward(recipient,_parents[i],_parentFee / rate,i) (contracts/FifaSportToken.sol#455)
- amountReceived = takeFee(sender,rAmount,recipient) (contracts/FifaSportToken.sol#394-396)
- SendDividends(balanceRewardToken) (contracts/FifaSportToken.sol#668)
- swapBack() (contracts/FifaSportToken.sol#388)
- SwapAndLiquify(half,newBalance,otherHalf) (contracts/FifaSportToken.sol#650)
- swapBack() (contracts/FifaSportToken.sol#388)
- Transfer(from,to,amount) (contracts/FifaSportToken.sol#364)
- swapBack() (contracts/FifaSportToken.sol#388)
- Transfer(recipient,_parents[i],_parentFee / rate) (contracts/FifaSportToken.sol#456)
- amountReceived = takeFee(sender,rAmount,recipient) (contracts/FifaSportToken.sol#394-396)
- Transfer(sender,address(this),(feeAmount - _amountDaoReward) / rate) (contracts/FifaSportToken.sol#462)
- amountReceived = takeFee(sender,rAmount,recipient) (contracts/FifaSportToken.sol#394-396)
Reentrancy in FifaSport.processDividendTracker(uint256) (contracts/FifaSportToken.sol#776-779):
External calls:
- (iterations,claims,lastProcessedIndex) = dividendTracker.process(gas) (contracts/FifaSportToken.sol#777)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,false,gas,tx.origin) (contracts/FifaSportToken.sol#778)
Apply the check-effects-interactions pattern.

Additional information: link

FifaSport.rebase() (contracts/FifaSportToken.sol#284-301) uses timestamp for comparisons
Dangerous comparisons:
- i < times (contracts/FifaSportToken.sol#288)
FifaSport._transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#368-411) uses timestamp for comparisons
Dangerous comparisons:
- recipient == uniswapV2Pair && launchTime == 0 && amount > 0 (contracts/FifaSportToken.sol#377)
FifaSport.shouldRebase() (contracts/FifaSportToken.sol#279-282) uses timestamp for comparisons
Dangerous comparisons:
- autoRebase && msg.sender != uniswapV2Pair && ! inSwap && block.timestamp >= (lastRebasedTime + 1800) (contracts/FifaSportToken.sol#280-281)
FifaSport.shouldSwapBack() (contracts/FifaSportToken.sol#552-558) uses timestamp for comparisons
Dangerous comparisons:
- (msg.sender != uniswapV2Pair && ! inSwap && swapEnabled && _rBalance[address(this)] >= swapThreshold && lastSwapTime + swapInterval < block.timestamp) (contracts/FifaSportToken.sol#553-557)
FifaSport.takeFee(address,uint256,address) (contracts/FifaSportToken.sol#413-465) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp - launchTime < 10 && launchTime != 0 && (uniswapV2Pair == recipient || uniswapV2Pair == sender) (contracts/FifaSportToken.sol#421)
Avoid relying on block.timestamp.

Additional information: link

Different versions of Solidity are used:
- Version used: ['^0.8.0', '^0.8.16', '^0.8.3']
- ^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#4)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#4)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#4)
- ^0.8.16 (contracts/FifaSportToken.sol#3)
- ^0.8.3 (contracts/interfaces/IDividendTracker.sol#2)
- ^0.8.3 (contracts/interfaces/IFifaSportDao.sol#2)
- ^0.8.3 (contracts/interfaces/IUniswapV2Factory.sol#2)
- ^0.8.3 (contracts/interfaces/IUniswapV2Pair.sol#2)
- ^0.8.3 (contracts/interfaces/IUniswapV2Router01.sol#2)
- ^0.8.3 (contracts/interfaces/IUniswapV2Router02.sol#2)
Use one Solidity version.

Additional information: link

ERC20._spendAllowance(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#330-342) is never used and should be removed
ERC20._burn(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#280-295) is never used and should be removed
Context._msgData() (@openzeppelin/contracts/utils/Context.sol#21-23) is never used and should be removed
ERC20._transfer(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#226-246) is never used and should be removed
ERC20._approve(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#310-320) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version^0.8.3 (contracts/interfaces/IUniswapV2Factory.sol#2) allows old versions
Pragma version^0.8.3 (contracts/interfaces/IUniswapV2Router01.sol#2) allows old versions
solc-0.8.16 is not recommended for deployment
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#4) allows old versions
Pragma version^0.8.3 (contracts/interfaces/IUniswapV2Router02.sol#2) allows old versions
Pragma version^0.8.3 (contracts/interfaces/IFifaSportDao.sol#2) allows old versions
Pragma version^0.8.16 (contracts/FifaSportToken.sol#3) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#4) allows old versions
Pragma version^0.8.3 (contracts/interfaces/IDividendTracker.sol#2) allows old versions
Pragma version^0.8.3 (contracts/interfaces/IUniswapV2Pair.sol#2) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#4) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Context.sol#4) allows old versions
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

Additional information: link

Low level call in FifaSport.sendBNB(address,uint256) (contracts/FifaSportToken.sol#216-221):
- (success) = recipient.call{value: amount}() (contracts/FifaSportToken.sol#219)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Parameter FifaSport.setSwapBackSettings(bool,uint256)._percentage_base100000 (contracts/FifaSportToken.sol#671) is not in mixedCase
Variable FifaSport.rebase_count (contracts/FifaSportToken.sol#71) is not in mixedCase
Parameter FifaSport.updateSellFees(uint256,uint256,uint256,uint256,uint256)._sustainabilitySellFee (contracts/FifaSportToken.sol#482) is not in mixedCase
Variable FifaSport._rBalance (contracts/FifaSportToken.sol#15) is not in mixedCase
Parameter FifaSport.updateBuyFees(uint256,uint256)._liquidityBuyFee (contracts/FifaSportToken.sol#503) is not in mixedCase
Variable FifaSport.DEAD (contracts/FifaSportToken.sol#46) is not in mixedCase
Parameter FifaSport.updateDao(address)._address (contracts/FifaSportToken.sol#534) is not in mixedCase
Parameter FifaSport.updateBuyFees(uint256,uint256)._daoRewardBuyFee (contracts/FifaSportToken.sol#503) is not in mixedCase
Parameter FifaSport.updateWtoWFees(uint256,uint256)._liquidityTransferFee (contracts/FifaSportToken.sol#515) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (contracts/interfaces/IUniswapV2Pair.sol#31) is not in mixedCase
Variable FifaSport.WtoWtransferFee (contracts/FifaSportToken.sol#30) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (contracts/interfaces/IUniswapV2Pair.sol#57) is not in mixedCase
Parameter FifaSport.setSwapBackSettings(bool,uint256)._enabled (contracts/FifaSportToken.sol#671) is not in mixedCase
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (contracts/interfaces/IUniswapV2Pair.sol#29) is not in mixedCase
Parameter FifaSport.changeSustainabilityWallet(address)._sustainabilityWallet (contracts/FifaSportToken.sol#545) is not in mixedCase
Parameter FifaSport.updateSellFees(uint256,uint256,uint256,uint256,uint256)._treasurySellFee (contracts/FifaSportToken.sol#481) is not in mixedCase
Parameter FifaSport.updateSellFees(uint256,uint256,uint256,uint256,uint256)._liquiditySellFee (contracts/FifaSportToken.sol#480) is not in mixedCase
Parameter FifaSport.updateSellFees(uint256,uint256,uint256,uint256,uint256)._firePitSellFee (contracts/FifaSportToken.sol#484) is not in mixedCase
Parameter FifaSport.changeTreasuryWallet(address)._treasuryWallet (contracts/FifaSportToken.sol#539) is not in mixedCase
Parameter FifaSport.updateWtoWFees(uint256,uint256)._treasuryTransferFee (contracts/FifaSportToken.sol#515) is not in mixedCase
Function IUniswapV2Router01.WETH() (contracts/interfaces/IUniswapV2Router01.sol#6) is not in mixedCase
Parameter FifaSport.setAutoRebase(bool)._flag (contracts/FifaSportToken.sol#230) is not in mixedCase
Parameter FifaSport.updateSellFees(uint256,uint256,uint256,uint256,uint256)._rewardSellFee (contracts/FifaSportToken.sol#483) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (contracts/interfaces/IUniswapV2Router01.sol#11) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (contracts/interfaces/IUniswapV2Router01.sol#12)
Prevent variables from having similar names.

Additional information: link

FifaSport.slitherConstructorVariables() (contracts/FifaSportToken.sol#14-801) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (contracts/FifaSportToken.sol#46)
FifaSport.slitherConstructorVariables() (contracts/FifaSportToken.sol#14-801) uses literals with too many digits:
- gasForProcessing = 300000 (contracts/FifaSportToken.sol#48)
FifaSport.setSwapBackSettings(bool,uint256) (contracts/FifaSportToken.sol#671-675) uses literals with too many digits:
- swapThreshold = rSupply / 100000 * _percentage_base100000 (contracts/FifaSportToken.sol#674)
FifaSport.updateGasForProcessing(uint256) (contracts/FifaSportToken.sol#703-708) uses literals with too many digits:
- require(bool,string)(newValue >= 200000 && newValue <= 500000,gasForProcessing must be between 200,000 and 500,000) (contracts/FifaSportToken.sol#704)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

FifaSport.DEAD (contracts/FifaSportToken.sol#46) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

totalSupply() should be declared external:
- ERC20.totalSupply() (@openzeppelin/contracts/token/ERC20/ERC20.sol#94-96)
- FifaSport.totalSupply() (contracts/FifaSportToken.sol#331-333)
totalRewardsEarned(address) should be declared external:
- FifaSport.totalRewardsEarned(address) (contracts/FifaSportToken.sol#734-736)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#54-56)
updateDividendTracker(address) should be declared external:
- FifaSport.updateDividendTracker(address) (contracts/FifaSportToken.sol#683-701)
dividendTokenBalanceOf(address) should be declared external:
- FifaSport.dividendTokenBalanceOf(address) (contracts/FifaSportToken.sol#730-732)
decimals() should be declared external:
- ERC20.decimals() (@openzeppelin/contracts/token/ERC20/ERC20.sol#87-89)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#181-185)
- FifaSport.increaseAllowance(address,uint256) (contracts/FifaSportToken.sol#325-329)
updateDao(address) should be declared external:
- FifaSport.updateDao(address) (contracts/FifaSportToken.sol#534-537)
symbol() should be declared external:
- ERC20.symbol() (@openzeppelin/contracts/token/ERC20/ERC20.sol#70-72)
updateGasForProcessing(uint256) should be declared external:
- FifaSport.updateGasForProcessing(uint256) (contracts/FifaSportToken.sol#703-708)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#113-117)
- FifaSport.transfer(address,uint256) (contracts/FifaSportToken.sol#339-342)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#62-65)
name() should be declared external:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#62-64)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#158-167)
- FifaSport.transferFrom(address,address,uint256) (contracts/FifaSportToken.sol#344-354)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#201-210)
- FifaSport.decreaseAllowance(address,uint256) (contracts/FifaSportToken.sol#314-323)
isExcludedFromFees(address) should be declared external:
- FifaSport.isExcludedFromFees(address) (contracts/FifaSportToken.sol#474-476)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#136-140)
- FifaSport.approve(address,uint256) (contracts/FifaSportToken.sol#304-308)
withdrawableDividendOf(address) should be declared external:
- FifaSport.withdrawableDividendOf(address) (contracts/FifaSportToken.sol#726-728)
Use the external attribute for functions never called from the contract.

Additional information: link

Holders:

Contract has 6% buy tax and 0% sell tax.
Taxes are low but contract ownership is not renounced. Token has a high risk of becoming a honeypot.


Average 30d PancakeSwap volume is low.


Average 30d number of PancakeSwap swaps is low.


Number of Binance Smart Chain (BSC) token holders is low.


Average PancakeSwap trading volume, liqudity, number of swaps are low. Token seems to be inactive.


Token is deployed only at one blockchain


Token has only one trading pair


Unable to find Blog account (Reddit or Medium)


Unable to find Youtube account


BscScan page for the token does not contain additional info: website, socials, description, etc.

Additional information: link


Unable to find audit link on the website


Token is not listed at Mobula.Finance

Additional information: link


Unable to find token on CoinHunt

Additional information: link


Unable to find code repository for the project


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Young tokens have high risks of scam / price dump / death


Token has relatively low CoinGecko rank


Token has relatively low CoinMarketCap rank

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