COVDR [Covid 19 Recovery] Token

COVDR.swapAndSendToFee(uint256) (Covdr.sol#370-382) sends eth to arbitrary user
Dangerous calls:
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
COVDR.addLiquidity(uint256,uint256) (Covdr.sol#448-463) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368):
External calls:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- success = IERC20(BUSD).transfer(address(dividendTracker),dividends) (Covdr.sol#468)
- dividendTracker.distributeBUSDDividends(dividends) (Covdr.sol#471)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#439-445)
External calls sending eth:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (Covdr.sol#349)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (ERC20.sol#221)
- _balances[recipient] = _balances[recipient].add(amount) (ERC20.sol#222)
- super._transfer(from,to,amount) (Covdr.sol#353)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (ERC20.sol#221)
- _balances[recipient] = _balances[recipient].add(amount) (ERC20.sol#222)
- swapping = false (Covdr.sol#329)
Apply the check-effects-interactions pattern.

Additional information: link

COVDR.removeStuckToken(address) (Covdr.sol#481-486) ignores return value by IERC20(_address).transfer(owner(),IERC20(_address).balanceOf(address(this))) (Covdr.sol#485)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

Unable to verify that contract auditor is trusted: Certik, Quantstamp, Hacken, Solidity, Paladinsec, Openzeppelin, Verichains

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.

Redundant expression "this (Context.sol#21)" inContext (Context.sol#15-24)
Remove redundant statements if they congest code but offer no value.

Additional information: link

updateDividendTracker(address) should be declared external:
- COVDR.updateDividendTracker(address) (Covdr.sol#128-143)
updateUniswapV2Router(address) should be declared external:
- COVDR.updateUniswapV2Router(address) (Covdr.sol#145-152)
excludeMultipleAccountsFromFees(address[],bool) should be declared external:
- COVDR.excludeMultipleAccountsFromFees(address[],bool) (Covdr.sol#161-167)
setAutomatedMarketMakerPair(address,bool) should be declared external:
- COVDR.setAutomatedMarketMakerPair(address,bool) (Covdr.sol#192-196)
updateGasForProcessing(uint256) should be declared external:
- COVDR.updateGasForProcessing(uint256) (Covdr.sol#215-220)
isExcludedFromFees(address) should be declared external:
- COVDR.isExcludedFromFees(address) (Covdr.sol#234-236)
withdrawableDividendOf(address) should be declared external:
- COVDR.withdrawableDividendOf(address) (Covdr.sol#238-240)
dividendTokenBalanceOf(address) should be declared external:
- COVDR.dividendTokenBalanceOf(address) (Covdr.sol#242-244)
withdrawDividend() should be declared external:
- COVDRDividendTracker.withdrawDividend() (Covdr.sol#518-520)
- DividendPayingToken.withdrawDividend() (DividendPayingToken.sol#70-72)
getAccountAtIndex(uint256) should be declared external:
- COVDRDividendTracker.getAccountAtIndex(uint256) (Covdr.sol#594-611)
process(uint256) should be declared external:
- COVDRDividendTracker.process(uint256) (Covdr.sol#638-683)
distributeBUSDDividends(uint256) should be declared external:
- DividendPayingToken.distributeBUSDDividends(uint256) (DividendPayingToken.sol#55-66)
dividendOf(address) should be declared external:
- DividendPayingToken.dividendOf(address) (DividendPayingToken.sol#98-100)
withdrawnDividendOf(address) should be declared external:
- DividendPayingToken.withdrawnDividendOf(address) (DividendPayingToken.sol#112-114)
name() should be declared external:
- ERC20.name() (ERC20.sol#63-65)
symbol() should be declared external:
- ERC20.symbol() (ERC20.sol#71-73)
decimals() should be declared external:
- ERC20.decimals() (ERC20.sol#88-90)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (ERC20.sol#114-117)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (ERC20.sol#122-124)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (ERC20.sol#133-136)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (ERC20.sol#151-159)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (ERC20.sol#173-176)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (ERC20.sol#192-195)
get(IterableMapping.Map,address) should be declared external:
- IterableMapping.get(IterableMapping.Map,address) (IterableMapping.sol#13-15)
getIndexOfKey(IterableMapping.Map,address) should be declared external:
- IterableMapping.getIndexOfKey(IterableMapping.Map,address) (IterableMapping.sol#17-22)
getKeyAtIndex(IterableMapping.Map,uint256) should be declared external:
- IterableMapping.getKeyAtIndex(IterableMapping.Map,uint256) (IterableMapping.sol#24-26)
size(IterableMapping.Map) should be declared external:
- IterableMapping.size(IterableMapping.Map) (IterableMapping.sol#30-32)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (Ownable.sol#43-46)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (Ownable.sol#52-56)
Use the external attribute for functions never called from the contract.

Additional information: link

Reentrancy in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368):
External calls:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
External calls sending eth:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
State variables written after the call(s):
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- _allowances[owner][spender] = amount (ERC20.sol#287)
Reentrancy in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368):
External calls:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- success = IERC20(BUSD).transfer(address(dividendTracker),dividends) (Covdr.sol#468)
- dividendTracker.distributeBUSDDividends(dividends) (Covdr.sol#471)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#439-445)
External calls sending eth:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
State variables written after the call(s):
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- _allowances[owner][spender] = amount (ERC20.sol#287)
Reentrancy in COVDR.constructor() (Covdr.sol#90-122):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (Covdr.sol#97-98)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (Covdr.sol#101)
- uniswapV2Router = _uniswapV2Router (Covdr.sol#100)
Reentrancy in COVDR.constructor() (Covdr.sol#90-122):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (Covdr.sol#97-98)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (Covdr.sol#103)
- dividendTracker.excludeFromDividends(pair) (Covdr.sol#208)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (Covdr.sol#106)
- dividendTracker.excludeFromDividends(address(this)) (Covdr.sol#107)
- dividendTracker.excludeFromDividends(owner()) (Covdr.sol#108)
- dividendTracker.excludeFromDividends(deadWallet) (Covdr.sol#109)
- dividendTracker.excludeFromDividends(address(_uniswapV2Router)) (Covdr.sol#110)
State variables written after the call(s):
- _mint(owner(),500000000000 * (10 ** 18)) (Covdr.sol#121)
- _balances[account] = _balances[account].add(amount) (ERC20.sol#241)
- excludeFromFees(owner(),true) (Covdr.sol#113)
- _isExcludedFromFees[account] = excluded (Covdr.sol#156)
- excludeFromFees(_marketingWalletAddress,true) (Covdr.sol#114)
- _isExcludedFromFees[account] = excluded (Covdr.sol#156)
- excludeFromFees(address(this),true) (Covdr.sol#115)
- _isExcludedFromFees[account] = excluded (Covdr.sol#156)
- _mint(owner(),500000000000 * (10 ** 18)) (Covdr.sol#121)
- _totalSupply = _totalSupply.add(amount) (ERC20.sol#240)
Reentrancy in COVDRDividendTracker.processAccount(address,bool) (Covdr.sol#685-695):
External calls:
- amount = _withdrawDividendOfUser(account) (Covdr.sol#686)
- success = IERC20(BUSD).transfer(user,_withdrawableDividend) (DividendPayingToken.sol#81)
State variables written after the call(s):
- lastClaimTimes[account] = block.timestamp (Covdr.sol#689)
Reentrancy in COVDR.swapAndLiquify(uint256) (Covdr.sol#384-405):
External calls:
- swapTokensForEth(half) (Covdr.sol#396)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- addLiquidity(otherHalf,newBalance) (Covdr.sol#402)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (Covdr.sol#402)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (Covdr.sol#402)
- _allowances[owner][spender] = amount (ERC20.sol#287)
Reentrancy in COVDR.updateUniswapV2Router(address) (Covdr.sol#145-152):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this),uniswapV2Router.WETH()) (Covdr.sol#149-150)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (Covdr.sol#151)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in DividendPayingToken._withdrawDividendOfUser(address) (DividendPayingToken.sol#76-92):
External calls:
- success = IERC20(BUSD).transfer(user,_withdrawableDividend) (DividendPayingToken.sol#81)
State variables written after the call(s):
- withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend) (DividendPayingToken.sol#84)
Reentrancy in COVDR.updateDividendTracker(address) (Covdr.sol#128-143):
External calls:
- newDividendTracker.excludeFromDividends(address(newDividendTracker)) (Covdr.sol#135)
- newDividendTracker.excludeFromDividends(address(this)) (Covdr.sol#136)
- newDividendTracker.excludeFromDividends(owner()) (Covdr.sol#137)
- newDividendTracker.excludeFromDividends(address(uniswapV2Router)) (Covdr.sol#138)
State variables written after the call(s):
- dividendTracker = newDividendTracker (Covdr.sol#142)
Apply the check-effects-interactions pattern.

Additional information: link

COVDR._transfer(address,address,uint256).iterations (Covdr.sol#361) is a local variable never initialized
COVDR._transfer(address,address,uint256).claims (Covdr.sol#361) is a local variable never initialized
COVDR._transfer(address,address,uint256).lastProcessedIndex (Covdr.sol#361) 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

COVDR.claim() (Covdr.sol#281-283) ignores return value by dividendTracker.processAccount(msg.sender,false) (Covdr.sol#282)
COVDR._transfer(address,address,uint256) (Covdr.sol#294-368) ignores return value by dividendTracker.process(gas) (Covdr.sol#361-366)
COVDR.addLiquidity(uint256,uint256) (Covdr.sol#448-463) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
Ensure that all the return values of the function calls are used.

Additional information: link

DividendPayingToken.constructor(string,string)._name (DividendPayingToken.sol#50) shadows:
- ERC20._name (ERC20.sol#43) (state variable)
DividendPayingToken.constructor(string,string)._symbol (DividendPayingToken.sol#50) shadows:
- ERC20._symbol (ERC20.sol#44) (state variable)
DividendPayingToken.dividendOf(address)._owner (DividendPayingToken.sol#98) shadows:
- Ownable._owner (Ownable.sol#8) (state variable)
DividendPayingToken.withdrawableDividendOf(address)._owner (DividendPayingToken.sol#105) shadows:
- Ownable._owner (Ownable.sol#8) (state variable)
DividendPayingToken.withdrawnDividendOf(address)._owner (DividendPayingToken.sol#112) shadows:
- Ownable._owner (Ownable.sol#8) (state variable)
DividendPayingToken.accumulativeDividendOf(address)._owner (DividendPayingToken.sol#122) shadows:
- Ownable._owner (Ownable.sol#8) (state variable)
Rename the local variables that shadow another component.

Additional information: link

COVDR.setonSellFee(uint256,uint256,uint256) (Covdr.sol#173-178) should emit an event for:
- onSellBUSDFee = _BUSDFee (Covdr.sol#174)
- onSellLiquidityFee = _liquidityFee (Covdr.sol#175)
- onSellMarketingFee = _marketingFee (Covdr.sol#176)
- onSellTotalFees = onSellBUSDFee.add(onSellLiquidityFee).add(onSellMarketingFee) (Covdr.sol#177)
COVDR.setonBuyFee(uint256,uint256,uint256) (Covdr.sol#180-185) should emit an event for:
- BUSDFee = _BUSDFee (Covdr.sol#181)
- liquidityFee = _liquidityFee (Covdr.sol#182)
- marketingFee = _marketingFee (Covdr.sol#183)
- totalFees = BUSDFee.add(liquidityFee).add(marketingFee) (Covdr.sol#184)
COVDR.setSwapTokensAtAmount(uint256) (Covdr.sol#187-189) should emit an event for:
- swapTokensAtAmount = amount (Covdr.sol#188)
Emit an event for critical parameter changes.

Additional information: link

COVDR.updateUniswapV2Router(address)._uniswapV2Pair (Covdr.sol#149-150) lacks a zero-check on :
- uniswapV2Pair = _uniswapV2Pair (Covdr.sol#151)
COVDR.setMarketingWallet(address).wallet (Covdr.sol#169) lacks a zero-check on :
- _marketingWalletAddress = wallet (Covdr.sol#170)
Check that the address is not zero.

Additional information: link

DividendPayingToken._withdrawDividendOfUser(address) (DividendPayingToken.sol#76-92) has external calls inside a loop: success = IERC20(BUSD).transfer(user,_withdrawableDividend) (DividendPayingToken.sol#81)
Favor pull over push strategy for external calls.

Additional information: link

Variable 'COVDR._transfer(address,address,uint256).lastProcessedIndex (Covdr.sol#361)' in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (Covdr.sol#362)
Variable 'COVDR._transfer(address,address,uint256).claims (Covdr.sol#361)' in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (Covdr.sol#362)
Variable 'COVDR._transfer(address,address,uint256).iterations (Covdr.sol#361)' in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368) potentially used before declaration: ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (Covdr.sol#362)
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

COVDR.BUSD (Covdr.sol#26) should be constant
COVDR.deadWallet (Covdr.sol#24) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Reentrancy in COVDR._setAutomatedMarketMakerPair(address,bool) (Covdr.sol#203-212):
External calls:
- dividendTracker.excludeFromDividends(pair) (Covdr.sol#208)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (Covdr.sol#211)
Reentrancy in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368):
External calls:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
External calls sending eth:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
Event emitted after the call(s):
- Approval(owner,spender,amount) (ERC20.sol#288)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- SwapAndLiquify(half,newBalance,otherHalf) (Covdr.sol#404)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
Reentrancy in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368):
External calls:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- success = IERC20(BUSD).transfer(address(dividendTracker),dividends) (Covdr.sol#468)
- dividendTracker.distributeBUSDDividends(dividends) (Covdr.sol#471)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#439-445)
External calls sending eth:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
Event emitted after the call(s):
- Approval(owner,spender,amount) (ERC20.sol#288)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- SendDividends(tokens,dividends) (Covdr.sol#472)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- Transfer(sender,recipient,amount) (ERC20.sol#223)
- super._transfer(from,to,amount) (Covdr.sol#353)
- Transfer(sender,recipient,amount) (ERC20.sol#223)
- super._transfer(from,address(this),fees) (Covdr.sol#349)
Reentrancy in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368):
External calls:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- success = IERC20(BUSD).transfer(address(dividendTracker),dividends) (Covdr.sol#468)
- dividendTracker.distributeBUSDDividends(dividends) (Covdr.sol#471)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#439-445)
- dividendTracker.setBalance(address(from),balanceOf(from)) (Covdr.sol#355)
- dividendTracker.setBalance(address(to),balanceOf(to)) (Covdr.sol#356)
- dividendTracker.process(gas) (Covdr.sol#361-366)
External calls sending eth:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (Covdr.sol#362)
Reentrancy in COVDR.constructor() (Covdr.sol#90-122):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (Covdr.sol#97-98)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (Covdr.sol#103)
- dividendTracker.excludeFromDividends(pair) (Covdr.sol#208)
Event emitted after the call(s):
- SetAutomatedMarketMakerPair(pair,value) (Covdr.sol#211)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (Covdr.sol#103)
Reentrancy in COVDR.constructor() (Covdr.sol#90-122):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (Covdr.sol#97-98)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (Covdr.sol#103)
- dividendTracker.excludeFromDividends(pair) (Covdr.sol#208)
- dividendTracker.excludeFromDividends(address(dividendTracker)) (Covdr.sol#106)
- dividendTracker.excludeFromDividends(address(this)) (Covdr.sol#107)
- dividendTracker.excludeFromDividends(owner()) (Covdr.sol#108)
- dividendTracker.excludeFromDividends(deadWallet) (Covdr.sol#109)
- dividendTracker.excludeFromDividends(address(_uniswapV2Router)) (Covdr.sol#110)
Event emitted after the call(s):
- ExcludeFromFees(account,excluded) (Covdr.sol#158)
- excludeFromFees(address(this),true) (Covdr.sol#115)
- ExcludeFromFees(account,excluded) (Covdr.sol#158)
- excludeFromFees(_marketingWalletAddress,true) (Covdr.sol#114)
- ExcludeFromFees(account,excluded) (Covdr.sol#158)
- excludeFromFees(owner(),true) (Covdr.sol#113)
- Transfer(address(0),account,amount) (ERC20.sol#242)
- _mint(owner(),500000000000 * (10 ** 18)) (Covdr.sol#121)
Reentrancy in COVDRDividendTracker.processAccount(address,bool) (Covdr.sol#685-695):
External calls:
- amount = _withdrawDividendOfUser(account) (Covdr.sol#686)
- success = IERC20(BUSD).transfer(user,_withdrawableDividend) (DividendPayingToken.sol#81)
Event emitted after the call(s):
- Claim(account,amount,automatic) (Covdr.sol#690)
Reentrancy in COVDR.processDividendTracker(uint256) (Covdr.sol#276-279):
External calls:
- (iterations,claims,lastProcessedIndex) = dividendTracker.process(gas) (Covdr.sol#277)
Event emitted after the call(s):
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,false,gas,tx.origin) (Covdr.sol#278)
Reentrancy in COVDR.swapAndLiquify(uint256) (Covdr.sol#384-405):
External calls:
- swapTokensForEth(half) (Covdr.sol#396)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#419-425)
- addLiquidity(otherHalf,newBalance) (Covdr.sol#402)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (Covdr.sol#402)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
Event emitted after the call(s):
- Approval(owner,spender,amount) (ERC20.sol#288)
- addLiquidity(otherHalf,newBalance) (Covdr.sol#402)
- SwapAndLiquify(half,newBalance,otherHalf) (Covdr.sol#404)
Reentrancy in COVDR.swapAndSendDividends(uint256) (Covdr.sol#465-474):
External calls:
- swapTokensForBUSD(tokens) (Covdr.sol#466)
- uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (Covdr.sol#439-445)
- success = IERC20(BUSD).transfer(address(dividendTracker),dividends) (Covdr.sol#468)
- dividendTracker.distributeBUSDDividends(dividends) (Covdr.sol#471)
Event emitted after the call(s):
- SendDividends(tokens,dividends) (Covdr.sol#472)
Reentrancy in COVDR.updateDividendTracker(address) (Covdr.sol#128-143):
External calls:
- newDividendTracker.excludeFromDividends(address(newDividendTracker)) (Covdr.sol#135)
- newDividendTracker.excludeFromDividends(address(this)) (Covdr.sol#136)
- newDividendTracker.excludeFromDividends(owner()) (Covdr.sol#137)
- newDividendTracker.excludeFromDividends(address(uniswapV2Router)) (Covdr.sol#138)
Event emitted after the call(s):
- UpdateDividendTracker(newAddress,address(dividendTracker)) (Covdr.sol#140)
Apply the check-effects-interactions pattern.

Additional information: link

COVDRDividendTracker.getAccount(address) (Covdr.sol#549-592) uses timestamp for comparisons
Dangerous comparisons:
- nextClaimTime > block.timestamp (Covdr.sol#589-591)
COVDRDividendTracker.canAutoClaim(uint256) (Covdr.sol#613-619) uses timestamp for comparisons
Dangerous comparisons:
- lastClaimTime > block.timestamp (Covdr.sol#614)
- block.timestamp.sub(lastClaimTime) >= claimWait (Covdr.sol#618)
Avoid relying on block.timestamp.

Additional information: link

Context._msgData() (Context.sol#20-23) is never used and should be removed
DividendPayingToken._transfer(address,address,uint256) (DividendPayingToken.sol#132-138) is never used and should be removed
SafeMath.mod(uint256,uint256) (SafeMath.sol#126-128) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (SafeMath.sol#142-145) is never used and should be removed
SafeMathInt.abs(int256) (SafeMathInt.sol#82-85) is never used and should be removed
SafeMathInt.div(int256,int256) (SafeMathInt.sol#53-59) is never used and should be removed
SafeMathInt.mul(int256,int256) (SafeMathInt.sol#41-48) is never used and should be removed
Remove unused functions.

Additional information: link

COVDR.totalFees (Covdr.sol#36) is set pre-construction with a non-constant function or state variable:
- BUSDFee.add(liquidityFee).add(marketingFee)
COVDR.onSellTotalFees (Covdr.sol#41) is set pre-construction with a non-constant function or state variable:
- onSellBUSDFee.add(onSellLiquidityFee).add(onSellMarketingFee)
Remove any initialization of state variables via non-constant state variables or function calls. If variables must be set upon contract deployment, locate initialization in the constructor instead.

Additional information: link

Pragma version^0.6.2 (Context.sol#3) allows old versions
Pragma version^0.6.2 (Covdr.sol#3) allows old versions
Pragma version^0.6.2 (DividendPayingToken.sol#3) allows old versions
Pragma version^0.6.2 (DividendPayingTokenInterface.sol#3) allows old versions
Pragma version^0.6.2 (DividendPayingTokenOptionalInterface.sol#3) allows old versions
Pragma version^0.6.2 (ERC20.sol#3) allows old versions
Pragma version^0.6.2 (IERC20.sol#3) allows old versions
Pragma version^0.6.2 (IERC20Metadata.sol#3) allows old versions
Pragma version^0.6.2 (IUniswapV2Factory.sol#3) allows old versions
Pragma version^0.6.2 (IUniswapV2Pair.sol#3) allows old versions
Pragma version^0.6.2 (IUniswapV2Router.sol#3) allows old versions
Pragma version^0.6.2 (IterableMapping.sol#2) allows old versions
Pragma version^0.6.2 (Ownable.sol#1) allows old versions
Pragma version^0.6.2 (SafeMath.sol#3) allows old versions
Pragma version^0.6.2 (SafeMathInt.sol#28) allows old versions
Pragma version^0.6.2 (SafeMathUint.sol#3) 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

Parameter COVDR.setonSellFee(uint256,uint256,uint256)._BUSDFee (Covdr.sol#173) is not in mixedCase
Parameter COVDR.setonSellFee(uint256,uint256,uint256)._liquidityFee (Covdr.sol#173) is not in mixedCase
Parameter COVDR.setonSellFee(uint256,uint256,uint256)._marketingFee (Covdr.sol#173) is not in mixedCase
Parameter COVDR.setonBuyFee(uint256,uint256,uint256)._BUSDFee (Covdr.sol#180) is not in mixedCase
Parameter COVDR.setonBuyFee(uint256,uint256,uint256)._liquidityFee (Covdr.sol#180) is not in mixedCase
Parameter COVDR.setonBuyFee(uint256,uint256,uint256)._marketingFee (Covdr.sol#180) is not in mixedCase
Parameter COVDR.removeStuckToken(address)._address (Covdr.sol#481) is not in mixedCase
Variable COVDR.BUSD (Covdr.sol#26) is not in mixedCase
Variable COVDR._isBlacklisted (Covdr.sol#31) is not in mixedCase
Variable COVDR.BUSDFee (Covdr.sol#33) is not in mixedCase
Variable COVDR._marketingWalletAddress (Covdr.sol#43) is not in mixedCase
Parameter COVDRDividendTracker.getAccount(address)._account (Covdr.sol#549) is not in mixedCase
Parameter DividendPayingToken.dividendOf(address)._owner (DividendPayingToken.sol#98) is not in mixedCase
Parameter DividendPayingToken.withdrawableDividendOf(address)._owner (DividendPayingToken.sol#105) is not in mixedCase
Parameter DividendPayingToken.withdrawnDividendOf(address)._owner (DividendPayingToken.sol#112) is not in mixedCase
Parameter DividendPayingToken.accumulativeDividendOf(address)._owner (DividendPayingToken.sol#122) is not in mixedCase
Variable DividendPayingToken.BUSD (DividendPayingToken.sol#24) is not in mixedCase
Constant DividendPayingToken.magnitude (DividendPayingToken.sol#30) is not in UPPER_CASE_WITH_UNDERSCORES
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (IUniswapV2Pair.sol#20) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (IUniswapV2Pair.sol#21) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (IUniswapV2Pair.sol#38) is not in mixedCase
Function IUniswapV2Router01.WETH() (IUniswapV2Router.sol#7) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Reentrancy in COVDR._transfer(address,address,uint256) (Covdr.sol#294-368):
External calls:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
External calls sending eth:
- swapAndSendToFee(marketingTokens) (Covdr.sol#321)
- _marketingWalletAddress.transfer(marketingAmount) (Covdr.sol#378)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (Covdr.sol#454-461)
State variables written after the call(s):
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- _allowances[owner][spender] = amount (ERC20.sol#287)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- _allowances[owner][spender] = amount (ERC20.sol#287)
- super._transfer(from,address(this),fees) (Covdr.sol#349)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (ERC20.sol#221)
- _balances[recipient] = _balances[recipient].add(amount) (ERC20.sol#222)
- super._transfer(from,to,amount) (Covdr.sol#353)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (ERC20.sol#221)
- _balances[recipient] = _balances[recipient].add(amount) (ERC20.sol#222)
- swapping = false (Covdr.sol#329)
Event emitted after the call(s):
- Approval(owner,spender,amount) (ERC20.sol#288)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- Approval(owner,spender,amount) (ERC20.sol#288)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- ProcessedDividendTracker(iterations,claims,lastProcessedIndex,true,gas,tx.origin) (Covdr.sol#362)
- SendDividends(tokens,dividends) (Covdr.sol#472)
- swapAndSendDividends(sellTokens) (Covdr.sol#327)
- SwapAndLiquify(half,newBalance,otherHalf) (Covdr.sol#404)
- swapAndLiquify(swapTokens) (Covdr.sol#324)
- Transfer(sender,recipient,amount) (ERC20.sol#223)
- super._transfer(from,to,amount) (Covdr.sol#353)
- Transfer(sender,recipient,amount) (ERC20.sol#223)
- super._transfer(from,address(this),fees) (Covdr.sol#349)
Apply the check-effects-interactions pattern.

Additional information: link

Variable DividendPayingToken._withdrawDividendOfUser(address)._withdrawableDividend (DividendPayingToken.sol#77) is too similar to COVDRDividendTracker.getAccount(address).withdrawableDividends (Covdr.sol#554)
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (IUniswapV2Router.sol#12) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (IUniswapV2Router.sol#13)
Prevent variables from having similar names.

Additional information: link

COVDR.constructor() (Covdr.sol#90-122) uses literals with too many digits:
- _mint(owner(),500000000000 * (10 ** 18)) (Covdr.sol#121)
COVDR.updateGasForProcessing(uint256) (Covdr.sol#215-220) uses literals with too many digits:
- require(bool,string)(newValue >= 200000 && newValue <= 500000,COVDR: gasForProcessing must be between 200,000 and 500,000) (Covdr.sol#216)
COVDR.slitherConstructorVariables() (Covdr.sol#14-487) uses literals with too many digits:
- deadWallet = 0x000000000000000000000000000000000000dEaD (Covdr.sol#24)
COVDR.slitherConstructorVariables() (Covdr.sol#14-487) uses literals with too many digits:
- swapTokensAtAmount = 500000000 * (10 ** 18) (Covdr.sol#28)
COVDR.slitherConstructorVariables() (Covdr.sol#14-487) uses literals with too many digits:
- gasForProcessing = 300000 (Covdr.sol#47)
COVDRDividendTracker.constructor() (Covdr.sol#509-512) uses literals with too many digits:
- minimumTokenBalanceForDividends = 100000 * (10 ** 18) (Covdr.sol#511)
COVDRDividendTracker.getAccountAtIndex(uint256) (Covdr.sol#594-611) uses literals with too many digits:
- (0x0000000000000000000000000000000000000000,- 1,- 1,0,0,0,0,0) (Covdr.sol#605)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

SafeMathInt.MAX_INT256 (SafeMathInt.sol#36) is never used in SafeMathInt (SafeMathInt.sol#34-92)
Remove unused state variables.

Additional information: link

Average 30d PancakeSwap liquidity is low.

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

Token is deployed only at one blockchain

Token has only one trading pair

Contract has 5% buy tax and 10% sell tax.
Taxes are low and contract ownership is renounced.

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

Additional information: link

Unable to verify token contract address on the website

Unable to find whitepaper link on the website

Unable to find token on CoinHunt

Additional information: link

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 no active CoinGecko listing / rank

Alexa traffic rank is relatively low

Additional information: link

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinMarketCap rank