MRT [Meta Rewards] Token

Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)

Reentrancy in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642):
External calls:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividends(sellTokens) (#1599)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
External calls sending eth:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- swapAndSendDividends(sellTokens) (#1599)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (#1616)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#816)
- _balances[recipient] = _balances[recipient].add(amount) (#817)
- super._transfer(from,to,amount) (#1619)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#816)
- _balances[recipient] = _balances[recipient].add(amount) (#817)
- swapping = false (#1601)
Reentrancy in DividendPayingToken._withdrawDividendOfUser(address) (#1106-1122):
External calls:
- (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1111)
State variables written after the call(s):
- withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend) (#1114)
Apply the check-effects-interactions pattern.

Additional information: link

ERC20DividendToken.addLiquidity(uint256,uint256) (#1685-1698) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
ERC20DividendToken.swapAndSendDividendsToMarketing(uint256) (#1710-1718) sends eth to arbitrary user
Dangerous calls:
- (success) = marketingAddress.call{value: dividends}() (#1713)
ERC20DividendToken.swapAndSendDividendsToBuyBackAddress(uint256) (#1720-1728) sends eth to arbitrary user
Dangerous calls:
- (success) = buyBackAddress.call{value: dividends}() (#1723)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

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.

Contract ownership is not renounced (belongs to a wallet)

Reentrancy in ERC20DividendToken.updateDividendTracker(address) (#1330-1353):
External calls:
- newDividendTracker.excludeFromDividends(address(newDividendTracker)) (#1345)
- newDividendTracker.excludeFromDividends(address(this)) (#1346)
- newDividendTracker.excludeFromDividends(owner()) (#1347)
- newDividendTracker.excludeFromDividends(address(uniswapV2Router)) (#1348)
State variables written after the call(s):
- dividendTracker = newDividendTracker (#1352)
Apply the check-effects-interactions pattern.

Additional information: link

ERC20DividendToken._transfer(address,address,uint256).iterations (#1628) is a local variable never initialized
ERC20DividendToken._transfer(address,address,uint256).claims (#1629) is a local variable never initialized
ERC20DividendToken._transfer(address,address,uint256).lastProcessedIndex (#1630) 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

Redundant expression "this (#233)" inContext (#227-236)
Remove redundant statements if they congest code but offer no value.

Additional information: link

ERC20DividendToken.constructor(string,string,uint256,address,address,address).marketingAddress_ (#1282) lacks a zero-check on :
- marketingAddress = marketingAddress_ (#1290)
ERC20DividendToken.constructor(string,string,uint256,address,address,address).buyBackAddress_ (#1282) lacks a zero-check on :
- buyBackAddress = buyBackAddress_ (#1291)
ERC20DividendToken.constructor(string,string,uint256,address,address,address)._uniswapV2Pair (#1300-1301) lacks a zero-check on :
- uniswapV2Pair = _uniswapV2Pair (#1303)
ERC20DividendToken.updateUniswapV2Router(address)._uniswapV2Pair (#1362-1363) lacks a zero-check on :
- uniswapV2Pair = _uniswapV2Pair (#1364)
ERC20DividendToken.setMarketingWallet(address).wallet (#1392) lacks a zero-check on :
- marketingAddress = wallet (#1393)
Check that the address is not zero.

Additional information: link

Variable 'ERC20DividendToken._transfer(address,address,uint256).lastProcessedIndex (#1630)' in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1632-1639)
Variable 'ERC20DividendToken._transfer(address,address,uint256).claims (#1629)' in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1632-1639)
Variable 'ERC20DividendToken._transfer(address,address,uint256).iterations (#1628)' in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1632-1639)
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

DividendPayingToken._withdrawDividendOfUser(address) (#1106-1122) has external calls inside a loop: (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1111)
Favor pull over push strategy for external calls.

Additional information: link

ERC20DividendToken.claim() (#1536-1538) ignores return value by dividendTracker.processAccount(msg.sender,false) (#1537)
ERC20DividendToken._transfer(address,address,uint256) (#1548-1642) ignores return value by dividendTracker.process(gas) (#1627-1640)
ERC20DividendToken.addLiquidity(uint256,uint256) (#1685-1698) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
Ensure that all the return values of the function calls are used.

Additional information: link

DividendPayingToken.constructor(string,string)._name (#1063) shadows:
- ERC20._name (#644) (state variable)
DividendPayingToken.constructor(string,string)._symbol (#1063) shadows:
- ERC20._symbol (#645) (state variable)
Rename the local variables that shadow another component.

Additional information: link

Reentrancy in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642):
External calls:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
External calls sending eth:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
State variables written after the call(s):
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- _allowances[owner][spender] = amount (#878)
Reentrancy in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642):
External calls:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
External calls sending eth:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
State variables written after the call(s):
- swapAndLiquify(swapTokens) (#1596)
- _allowances[owner][spender] = amount (#878)
Reentrancy in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642):
External calls:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividends(sellTokens) (#1599)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
External calls sending eth:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- swapAndSendDividends(sellTokens) (#1599)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
State variables written after the call(s):
- swapAndSendDividends(sellTokens) (#1599)
- _allowances[owner][spender] = amount (#878)
Reentrancy in ERC20DividendToken.constructor(string,string,uint256,address,address,address) (#1282-1322):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1300-1301)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (#1303)
- uniswapV2Router = _uniswapV2Router (#1302)
Reentrancy in ERC20DividendToken.constructor(string,string,uint256,address,address,address) (#1282-1322):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1300-1301)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1304)
- dividendTracker.excludeFromDividends(pair) (#1431)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (#1307)
- dividendTracker.excludeFromDividends(address(this)) (#1308)
- dividendTracker.excludeFromDividends(owner()) (#1309)
- dividendTracker.excludeFromDividends(address(0xdead)) (#1310)
- dividendTracker.excludeFromDividends(address(_uniswapV2Router)) (#1311)
State variables written after the call(s):
- _mint(owner(),totalSupply_ * (10 ** 18)) (#1321)
- _balances[account] = _balances[account].add(amount) (#836)
- excludeFromFees(owner(),true) (#1313)
- _isExcludedFromFees[account] = excluded (#1372)
- excludeFromFees(marketingAddress,true) (#1314)
- _isExcludedFromFees[account] = excluded (#1372)
- excludeFromFees(buyBackAddress,true) (#1315)
- _isExcludedFromFees[account] = excluded (#1372)
- excludeFromFees(address(this),true) (#1316)
- _isExcludedFromFees[account] = excluded (#1372)
- _mint(owner(),totalSupply_ * (10 ** 18)) (#1321)
- _totalSupply = _totalSupply.add(amount) (#835)
Reentrancy in ERC20DividendTracker.processAccount(address,bool) (#1957-1971):
External calls:
- amount = _withdrawDividendOfUser(account) (#1962)
- (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1111)
State variables written after the call(s):
- lastClaimTimes[account] = block.timestamp (#1965)
Reentrancy in ERC20DividendToken.swapAndLiquify(uint256) (#1644-1665):
External calls:
- swapTokensForEth(half) (#1656)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- addLiquidity(otherHalf,newBalance) (#1662)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1662)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1662)
- _allowances[owner][spender] = amount (#878)
Reentrancy in ERC20DividendToken.updateUniswapV2Router(address) (#1355-1365):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this),uniswapV2Router.WETH()) (#1362-1363)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (#1364)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in ERC20DividendToken._setAutomatedMarketMakerPair(address,bool) (#1423-1435):
External calls:
- dividendTracker.excludeFromDividends(pair) (#1431)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (#1434)
Reentrancy in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642):
External calls:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
External calls sending eth:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#879)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- SendDividendsToBuyBackAddress(tokens,dividends) (#1726)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
Reentrancy in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642):
External calls:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
External calls sending eth:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#879)
- swapAndLiquify(swapTokens) (#1596)
- SwapAndLiquify(half,newBalance,otherHalf) (#1664)
- swapAndLiquify(swapTokens) (#1596)
Reentrancy in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642):
External calls:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividends(sellTokens) (#1599)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
External calls sending eth:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- swapAndSendDividends(sellTokens) (#1599)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#879)
- swapAndSendDividends(sellTokens) (#1599)
- SendDividends(tokens,dividends) (#1706)
- swapAndSendDividends(sellTokens) (#1599)
- Transfer(sender,recipient,amount) (#818)
- super._transfer(from,address(this),fees) (#1616)
- Transfer(sender,recipient,amount) (#818)
- super._transfer(from,to,amount) (#1619)
Reentrancy in ERC20DividendToken._transfer(address,address,uint256) (#1548-1642):
External calls:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- swapAndSendDividends(sellTokens) (#1599)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- dividendTracker.setBalance(address(from),balanceOf(from)) (#1621)
- dividendTracker.setBalance(address(to),balanceOf(to)) (#1622)
- dividendTracker.process(gas) (#1627-1640)
External calls sending eth:
- swapAndSendDividendsToMarketing(marketingTokens) (#1586)
- (success) = marketingAddress.call{value: dividends}() (#1713)
- swapAndSendDividendsToBuyBackAddress(buyBackTokens) (#1591)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
- swapAndLiquify(swapTokens) (#1596)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
- swapAndSendDividends(sellTokens) (#1599)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (#1632-1639)
Reentrancy in ERC20DividendToken.constructor(string,string,uint256,address,address,address) (#1282-1322):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1300-1301)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1304)
- dividendTracker.excludeFromDividends(pair) (#1431)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (#1434)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1304)
Reentrancy in ERC20DividendToken.constructor(string,string,uint256,address,address,address) (#1282-1322):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1300-1301)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1304)
- dividendTracker.excludeFromDividends(pair) (#1431)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (#1307)
- dividendTracker.excludeFromDividends(address(this)) (#1308)
- dividendTracker.excludeFromDividends(owner()) (#1309)
- dividendTracker.excludeFromDividends(address(0xdead)) (#1310)
- dividendTracker.excludeFromDividends(address(_uniswapV2Router)) (#1311)
Event emitted after the call(s):
- ExcludeFromFees(account,excluded) (#1374)
- excludeFromFees(buyBackAddress,true) (#1315)
- ExcludeFromFees(account,excluded) (#1374)
- excludeFromFees(marketingAddress,true) (#1314)
- ExcludeFromFees(account,excluded) (#1374)
- excludeFromFees(owner(),true) (#1313)
- ExcludeFromFees(account,excluded) (#1374)
- excludeFromFees(address(this),true) (#1316)
- Transfer(address(0),account,amount) (#837)
- _mint(owner(),totalSupply_ * (10 ** 18)) (#1321)
Reentrancy in ERC20DividendTracker.processAccount(address,bool) (#1957-1971):
External calls:
- amount = _withdrawDividendOfUser(account) (#1962)
- (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1111)
Event emitted after the call(s):
- Claim(account,amount,automatic) (#1966)
Reentrancy in ERC20DividendToken.processDividendTracker(uint256) (#1520-1534):
External calls:
- (iterations,claims,lastProcessedIndex) = dividendTracker.process(gas) (#1521-1525)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,false,gas,tx.origin) (#1526-1533)
Reentrancy in ERC20DividendToken.swapAndLiquify(uint256) (#1644-1665):
External calls:
- swapTokensForEth(half) (#1656)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- addLiquidity(otherHalf,newBalance) (#1662)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1662)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0xdead),block.timestamp) (#1690-1697)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#879)
- addLiquidity(otherHalf,newBalance) (#1662)
- SwapAndLiquify(half,newBalance,otherHalf) (#1664)
Reentrancy in ERC20DividendToken.swapAndSendDividends(uint256) (#1700-1708):
External calls:
- swapTokensForEth(tokens) (#1701)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
External calls sending eth:
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
Event emitted after the call(s):
- SendDividends(tokens,dividends) (#1706)
Reentrancy in ERC20DividendToken.swapAndSendDividendsToBuyBackAddress(uint256) (#1720-1728):
External calls:
- swapTokensForEth(tokens) (#1721)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- (success) = buyBackAddress.call{value: dividends}() (#1723)
External calls sending eth:
- (success) = buyBackAddress.call{value: dividends}() (#1723)
Event emitted after the call(s):
- SendDividendsToBuyBackAddress(tokens,dividends) (#1726)
Reentrancy in ERC20DividendToken.swapAndSendDividendsToMarketing(uint256) (#1710-1718):
External calls:
- swapTokensForEth(tokens) (#1711)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1676-1682)
- (success) = marketingAddress.call{value: dividends}() (#1713)
External calls sending eth:
- (success) = marketingAddress.call{value: dividends}() (#1713)
Event emitted after the call(s):
- SendDividendsToMarketing(tokens,dividends) (#1716)
Reentrancy in ERC20DividendToken.updateDividendTracker(address) (#1330-1353):
External calls:
- newDividendTracker.excludeFromDividends(address(newDividendTracker)) (#1345)
- newDividendTracker.excludeFromDividends(address(this)) (#1346)
- newDividendTracker.excludeFromDividends(owner()) (#1347)
- newDividendTracker.excludeFromDividends(address(uniswapV2Router)) (#1348)
Event emitted after the call(s):
- UpdateDividendTracker(newAddress,address(dividendTracker)) (#1350)
Apply the check-effects-interactions pattern.

Additional information: link

ERC20DividendTracker.getAccount(address) (#1806-1853) uses timestamp for comparisons
Dangerous comparisons:
- nextClaimTime > block.timestamp (#1850-1852)
ERC20DividendTracker.canAutoClaim(uint256) (#1878-1884) uses timestamp for comparisons
Dangerous comparisons:
- lastClaimTime > block.timestamp (#1879)
- block.timestamp.sub(lastClaimTime) >= claimWait (#1883)
Avoid relying on block.timestamp.

Additional information: link

Different versions of Solidity is used:
- Version used: ['>=0.5.0', '>=0.6.2', '^0.7.6']
- >=0.6.2 (#4)
- >=0.6.2 (#102)
- >=0.5.0 (#148)
- >=0.5.0 (#203)
- ^0.7.6 (#225)
Use one Solidity version.

Additional information: link

Context._msgData() (#232-235) is never used and should be removed
DividendPayingToken._transfer(address,address,uint256) (#1162-1168) is never used and should be removed
ERC20._setupDecimals(uint8) (#889-891) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#538-541) is never used and should be removed
SafeMath.mod(uint256,uint256) (#500-503) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#558-561) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#372-376) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#408-411) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#418-421) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#393-401) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#383-386) is never used and should be removed
SafeMathInt.abs(int256) (#342-345) is never used and should be removed
SafeMathInt.div(int256,int256) (#313-319) is never used and should be removed
SafeMathInt.mul(int256,int256) (#301-308) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version>=0.6.2 (#4) allows old versions
Pragma version>=0.6.2 (#102) allows old versions
Pragma version>=0.5.0 (#148) allows old versions
Pragma version>=0.5.0 (#203) 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 DividendPayingToken._withdrawDividendOfUser(address) (#1106-1122):
- (success) = user.call{gas: 3000,value: _withdrawableDividend}() (#1111)
Low level call in ERC20DividendToken.swapAndSendDividends(uint256) (#1700-1708):
- (success) = address(dividendTracker).call{value: dividends}() (#1703)
Low level call in ERC20DividendToken.swapAndSendDividendsToMarketing(uint256) (#1710-1718):
- (success) = marketingAddress.call{value: dividends}() (#1713)
Low level call in ERC20DividendToken.swapAndSendDividendsToBuyBackAddress(uint256) (#1720-1728):
- (success) = buyBackAddress.call{value: dividends}() (#1723)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Router01.WETH() (#8) is not in mixedCase
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#165) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#166) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#183) is not in mixedCase
Parameter DividendPayingToken.dividendOf(address)._owner (#1128) is not in mixedCase
Parameter DividendPayingToken.withdrawableDividendOf(address)._owner (#1135) is not in mixedCase
Parameter DividendPayingToken.withdrawnDividendOf(address)._owner (#1142) is not in mixedCase
Parameter DividendPayingToken.accumulativeDividendOf(address)._owner (#1152) is not in mixedCase
Constant DividendPayingToken.magnitude (#1043) is not in UPPER_CASE_WITH_UNDERSCORES
Parameter ERC20DividendTracker.getAccount(address)._account (#1806) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#13) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#14)
Variable ERC20._totalSupply (#642) is too similar to ERC20DividendToken.constructor(string,string,uint256,address,address,address).totalSupply_ (#1282)
Variable DividendPayingToken._withdrawDividendOfUser(address)._withdrawableDividend (#1107) is too similar to ERC20DividendTracker.getAccount(address).withdrawableDividends (#1813)
Variable MetaRewardsToken._buyBackAddress (#1987) is too similar to ERC20DividendToken.constructor(string,string,uint256,address,address,address).buyBackAddress_ (#1282)
Variable MetaRewardsToken._marketingAddress (#1986) is too similar to ERC20DividendToken.constructor(string,string,uint256,address,address,address).marketingAddress_ (#1282)
Prevent variables from having similar names.

Additional information: link

ERC20DividendTracker.constructor() (#1755-1758) uses literals with too many digits:
- minimumTokenBalanceForDividends = 100000000 * (10 ** 18) (#1757)
ERC20DividendToken.constructor(string,string,uint256,address,address,address) (#1282-1322) uses literals with too many digits:
- swapTokensAtAmount = 100000000 * (10 ** 18) (#1293)
ERC20DividendToken.updateGasForProcessing(uint256) (#1437-1448) uses literals with too many digits:
- require(bool,string)(newValue >= 200000 && newValue <= 500000,ERC20DividendToken: gasForProcessing must be between 200,000 and 500,000) (#1438-1441)
MetaRewardsToken.slitherConstructorVariables() (#1974-1993) uses literals with too many digits:
- gasForProcessing = 300000 (#1228)
MetaRewardsToken.slitherConstructorVariables() (#1974-1993) uses literals with too many digits:
- _tokenSupply = 1000000000000000 (#1976)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

SafeMathInt.MAX_INT256 (#296) is never used in SafeMathInt (#294-352)
Remove unused state variables.

Additional information: link

MetaRewardsToken._buyBackAddress (#1987) should be constant
MetaRewardsToken._marketingAddress (#1986) should be constant
MetaRewardsToken._routerAddress (#1984) should be constant
MetaRewardsToken._tokenSupply (#1976) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#274-277)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#283-287)
name() should be declared external:
- ERC20.name() (#666-668)
symbol() should be declared external:
- ERC20.symbol() (#674-676)
decimals() should be declared external:
- ERC20.decimals() (#691-693)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#717-720)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (#725-727)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#736-739)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#754-758)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#772-775)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#791-794)
get(IterableMapping.Map,address) should be declared external:
- IterableMapping.get(IterableMapping.Map,address) (#919-921)
getIndexOfKey(IterableMapping.Map,address) should be declared external:
- IterableMapping.getIndexOfKey(IterableMapping.Map,address) (#923-928)
getKeyAtIndex(IterableMapping.Map,uint256) should be declared external:
- IterableMapping.getKeyAtIndex(IterableMapping.Map,uint256) (#930-932)
size(IterableMapping.Map) should be declared external:
- IterableMapping.size(IterableMapping.Map) (#936-938)
withdrawDividend() should be declared external:
- DividendPayingToken.withdrawDividend() (#1100-1102)
- ERC20DividendTracker.withdrawDividend() (#1768-1773)
dividendOf(address) should be declared external:
- DividendPayingToken.dividendOf(address) (#1128-1130)
withdrawnDividendOf(address) should be declared external:
- DividendPayingToken.withdrawnDividendOf(address) (#1142-1144)
updateDividendTracker(address) should be declared external:
- ERC20DividendToken.updateDividendTracker(address) (#1330-1353)
updateUniswapV2Router(address) should be declared external:
- ERC20DividendToken.updateUniswapV2Router(address) (#1355-1365)
excludeMultipleAccountsFromFees(address[],bool) should be declared external:
- ERC20DividendToken.excludeMultipleAccountsFromFees(address[],bool) (#1377-1386)
setAutomatedMarketMakerPair(address,bool) should be declared external:
- ERC20DividendToken.setAutomatedMarketMakerPair(address,bool) (#1411-1421)
updateGasForProcessing(uint256) should be declared external:
- ERC20DividendToken.updateGasForProcessing(uint256) (#1437-1448)
isExcludedFromFees(address) should be declared external:
- ERC20DividendToken.isExcludedFromFees(address) (#1462-1464)
withdrawableDividendOf(address) should be declared external:
- ERC20DividendToken.withdrawableDividendOf(address) (#1466-1472)
dividendTokenBalanceOf(address) should be declared external:
- ERC20DividendToken.dividendTokenBalanceOf(address) (#1474-1480)
getAccountAtIndex(uint256) should be declared external:
- ERC20DividendTracker.getAccountAtIndex(uint256) (#1855-1876)
process(uint256) should be declared external:
- ERC20DividendTracker.process(uint256) (#1903-1955)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract has 17% buy tax and 17% sell tax.
Taxes are suspiciously high (over 10%) and contract ownership is not renounced. Token has a high risk of becoming a honeypot.

Swap operations require suspiciously high gas. Contract logic is complex and may disguise some form of scam.

Average 30d PancakeSwap liquidity is low.

Token is deployed only at one blockchain

Unable to find token on CoinGecko

Additional information: link

Unable to find token contract audit

Unable to find audit link on the website

Unable to find token on CoinHunt

Additional information: link

Unable to find code repository for the project

Young tokens have high risks of price dump / death

Token has no active CoinGecko listing / rank

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinMarketCap rank