That's why we introduce you Web 4.0. We will start off as a meme token, but our aim is to evolve into a movement. If we see enough support from the Crypto Community. We will use all our resources and funding collected from $WEBFOUR to actually develop a Web 4.0.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
WEBFOUR._deliverFunds(address,uint256,string) (#1833-1841) sends eth to arbitrary user
Dangerous calls:
- (sent) = address(_recipient).call{value: _value}() (#1838)
WEBFOUR._buyBackTokens(uint256) (#1361-1378) sends eth to arbitrary user
Dangerous calls:
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in WEBFOUR._transfer(address,address,uint256) (#1231-1327):
External calls:
- _swapTokens(_contractTokenBalance) (#1313)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
- pancakeSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1389-1395)
External calls sending eth:
- _swapTokens(_contractTokenBalance) (#1313)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#1602)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1454)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1434)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1435)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1476)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1497)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1456)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1477)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1499)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- _rTotal = _rTotal.sub(rFee) (#1506)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#1604)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1475)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1496)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1455)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1498)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- bnbRewardsFee = _previousbnbRewardsFee (#1653)
- bnbRewardsFee = 0 (#1646)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- buybackFee = _previousBuybackFee (#1654)
- buybackFee = 0 (#1647)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- treasuryFee = _previousTreasuryFee (#1652)
- treasuryFee = 0 (#1645)
Apply the check-effects-interactions pattern.
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.
WEBFOUR._transfer(address,address,uint256) (#1231-1327) uses a dangerous strict equality:
- block.timestamp == launchTime (#1261)
Don't use strict equality to determine if an account has enough Ether or tokens.
Additional information: link
Contract ownership is not renounced (belongs to a wallet)
Variable WEBFOUR._transferBothExcluded(address,address,uint256).rTransferAmount (#1490) is too similar to WEBFOUR._transferBothExcluded(address,address,uint256).tTransferAmount (#1492)
Variable WEBFOUR.reflectionFromToken(uint256,bool).rTransferAmount (#1178) is too similar to WEBFOUR._transferStandard(address,address,uint256).tTransferAmount (#1430)
Variable WEBFOUR._getValues(uint256).rTransferAmount (#1527) is too similar to WEBFOUR._transferBothExcluded(address,address,uint256).tTransferAmount (#1492)
Variable WEBFOUR._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#1575) is too similar to WEBFOUR._transferBothExcluded(address,address,uint256).tTransferAmount (#1492)
Variable WEBFOUR._getValues(uint256).rTransferAmount (#1527) is too similar to WEBFOUR._transferStandard(address,address,uint256).tTransferAmount (#1430)
Variable WEBFOUR._transferStandard(address,address,uint256).rTransferAmount (#1428) is too similar to WEBFOUR._transferToExcluded(address,address,uint256).tTransferAmount (#1450)
Variable WEBFOUR._transferBothExcluded(address,address,uint256).rTransferAmount (#1490) is too similar to WEBFOUR._getTValues(uint256).tTransferAmount (#1554)
Variable WEBFOUR._transferStandard(address,address,uint256).rTransferAmount (#1428) is too similar to WEBFOUR._getValues(uint256).tTransferAmount (#1523)
Variable WEBFOUR._transferFromExcluded(address,address,uint256).rTransferAmount (#1469) is too similar to WEBFOUR._getTValues(uint256).tTransferAmount (#1554)
Variable WEBFOUR._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#1575) is too similar to WEBFOUR._getValues(uint256).tTransferAmount (#1523)
Variable WEBFOUR._transferStandard(address,address,uint256).rTransferAmount (#1428) is too similar to WEBFOUR._transferFromExcluded(address,address,uint256).tTransferAmount (#1471)
Variable WEBFOUR._getValues(uint256).rTransferAmount (#1527) is too similar to WEBFOUR._getTValues(uint256).tTransferAmount (#1554)
Variable WEBFOUR.reflectionFromToken(uint256,bool).rTransferAmount (#1178) is too similar to WEBFOUR._getTValues(uint256).tTransferAmount (#1554)
Variable WEBFOUR._transferToExcluded(address,address,uint256).rTransferAmount (#1448) is too similar to WEBFOUR._transferToExcluded(address,address,uint256).tTransferAmount (#1450)
Variable WEBFOUR._transferBothExcluded(address,address,uint256).rTransferAmount (#1490) is too similar to WEBFOUR._transferStandard(address,address,uint256).tTransferAmount (#1430)
Variable WEBFOUR.reflectionFromToken(uint256,bool).rTransferAmount (#1178) is too similar to WEBFOUR._transferBothExcluded(address,address,uint256).tTransferAmount (#1492)
Variable WEBFOUR.reflectionFromToken(uint256,bool).rTransferAmount (#1178) is too similar to WEBFOUR._getValues(uint256).tTransferAmount (#1523)
Variable WEBFOUR._transferStandard(address,address,uint256).rTransferAmount (#1428) is too similar to WEBFOUR._getTValues(uint256).tTransferAmount (#1554)
Variable WEBFOUR._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#1575) is too similar to WEBFOUR._transferFromExcluded(address,address,uint256).tTransferAmount (#1471)
Variable WEBFOUR._transferFromExcluded(address,address,uint256).rTransferAmount (#1469) is too similar to WEBFOUR._transferFromExcluded(address,address,uint256).tTransferAmount (#1471)
Variable WEBFOUR._transferFromExcluded(address,address,uint256).rTransferAmount (#1469) is too similar to WEBFOUR._transferStandard(address,address,uint256).tTransferAmount (#1430)
Variable WEBFOUR._transferBothExcluded(address,address,uint256).rTransferAmount (#1490) is too similar to WEBFOUR._getValues(uint256).tTransferAmount (#1523)
Variable WEBFOUR._transferStandard(address,address,uint256).rTransferAmount (#1428) is too similar to WEBFOUR._transferStandard(address,address,uint256).tTransferAmount (#1430)
Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#722) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#723)
Variable WEBFOUR._getValues(uint256).rTransferAmount (#1527) is too similar to WEBFOUR._transferToExcluded(address,address,uint256).tTransferAmount (#1450)
Variable WEBFOUR._transferToExcluded(address,address,uint256).rTransferAmount (#1448) is too similar to WEBFOUR._getValues(uint256).tTransferAmount (#1523)
Variable WEBFOUR._transferBothExcluded(address,address,uint256).rTransferAmount (#1490) is too similar to WEBFOUR._transferToExcluded(address,address,uint256).tTransferAmount (#1450)
Variable WEBFOUR._transferToExcluded(address,address,uint256).rTransferAmount (#1448) is too similar to WEBFOUR._getTValues(uint256).tTransferAmount (#1554)
Variable WEBFOUR._getValues(uint256).rTransferAmount (#1527) is too similar to WEBFOUR._getValues(uint256).tTransferAmount (#1523)
Variable WEBFOUR.reflectionFromToken(uint256,bool).rTransferAmount (#1178) is too similar to WEBFOUR._transferFromExcluded(address,address,uint256).tTransferAmount (#1471)
Variable WEBFOUR._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#1575) is too similar to WEBFOUR._getTValues(uint256).tTransferAmount (#1554)
Variable WEBFOUR._transferStandard(address,address,uint256).rTransferAmount (#1428) is too similar to WEBFOUR._transferBothExcluded(address,address,uint256).tTransferAmount (#1492)
Variable WEBFOUR._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#1575) is too similar to WEBFOUR._transferStandard(address,address,uint256).tTransferAmount (#1430)
Variable WEBFOUR._transferToExcluded(address,address,uint256).rTransferAmount (#1448) is too similar to WEBFOUR._transferStandard(address,address,uint256).tTransferAmount (#1430)
Variable WEBFOUR.reflectionFromToken(uint256,bool).rTransferAmount (#1178) is too similar to WEBFOUR._transferToExcluded(address,address,uint256).tTransferAmount (#1450)
Variable WEBFOUR._transferFromExcluded(address,address,uint256).rTransferAmount (#1469) is too similar to WEBFOUR._transferBothExcluded(address,address,uint256).tTransferAmount (#1492)
Variable WEBFOUR._transferToExcluded(address,address,uint256).rTransferAmount (#1448) is too similar to WEBFOUR._transferFromExcluded(address,address,uint256).tTransferAmount (#1471)
Variable WEBFOUR._transferBothExcluded(address,address,uint256).rTransferAmount (#1490) is too similar to WEBFOUR._transferFromExcluded(address,address,uint256).tTransferAmount (#1471)
Variable WEBFOUR._transferFromExcluded(address,address,uint256).rTransferAmount (#1469) is too similar to WEBFOUR._transferToExcluded(address,address,uint256).tTransferAmount (#1450)
Variable WEBFOUR._getValues(uint256).rTransferAmount (#1527) is too similar to WEBFOUR._transferFromExcluded(address,address,uint256).tTransferAmount (#1471)
Variable WEBFOUR._transferFromExcluded(address,address,uint256).rTransferAmount (#1469) is too similar to WEBFOUR._getValues(uint256).tTransferAmount (#1523)
Variable WEBFOUR._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#1575) is too similar to WEBFOUR._transferToExcluded(address,address,uint256).tTransferAmount (#1450)
Variable WEBFOUR._transferToExcluded(address,address,uint256).rTransferAmount (#1448) is too similar to WEBFOUR._transferBothExcluded(address,address,uint256).tTransferAmount (#1492)
Prevent variables from having similar names.
Additional information: link
WEBFOUR.slitherConstructorConstantVariables() (#881-1843) uses literals with too many digits:
- _tTotal = 500000000000000000000000000000 (#928)
WEBFOUR.slitherConstructorConstantVariables() (#881-1843) uses literals with too many digits:
- DEAD_ADDRESS = 0x000000000000000000000000000000000000dEaD (#886-887)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
WEBFOUR._isSelling (#978) is never used in WEBFOUR (#881-1843)
Remove unused state variables.
Additional information: link
WEBFOUR._isSelling (#978) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#394-396)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#402-405)
Use the external attribute for functions never called from the contract.
Additional information: link
WEBFOUR.allowance(address,address).owner (#1076) shadows:
- Ownable.owner() (#375-377) (function)
WEBFOUR._approve(address,address,uint256).owner (#1220) shadows:
- Ownable.owner() (#375-377) (function)
Rename the local variables that shadow another component.
Additional information: link
WEBFOUR.setRewardsClaimTimeSeconds(uint256) (#1691-1693) should emit an event for:
- rewardsClaimTimeSeconds = _seconds (#1692)
WEBFOUR.setBuybackFeePercent(uint256) (#1710-1713) should emit an event for:
- buybackFee = _newFee (#1712)
WEBFOUR.setReflectionFeePercent(uint256) (#1695-1698) should emit an event for:
- reflectionFee = _newFee (#1697)
WEBFOUR.setFeeRate(uint256) (#1818-1820) should emit an event for:
- feeRate = _rate (#1819)
WEBFOUR.setMaxSellAmount(uint256) (#1723-1725) should emit an event for:
- maxSellAmount = _maxSellAmount (#1724)
WEBFOUR.setBNBRewardsFeePercent(uint256) (#1705-1708) should emit an event for:
- bnbRewardsFee = _newFee (#1707)
WEBFOUR.setTreasuryFeePercent(uint256) (#1700-1703) should emit an event for:
- treasuryFee = _newFee (#1702)
Emit an event for critical parameter changes.
Additional information: link
WEBFOUR.initContract(address,address).treasuryAddress (#1007) lacks a zero-check on :
- treasuryWallet = treasuryAddress (#1012)
WEBFOUR.setBuybackReceiver(address)._receiver (#1737) lacks a zero-check on :
- buybackReceiver = _receiver (#1738)
WEBFOUR.initContract(address,address).routerAddress (#1007) lacks a zero-check on :
- pancakeRouterAddress = routerAddress (#1011)
WEBFOUR.setBuybackTokenAddress(address)._tokenAddress (#1733) lacks a zero-check on :
- buybackTokenAddress = _tokenAddress (#1734)
WEBFOUR.setTreasuryAddress(address)._treasuryWallet (#1715) lacks a zero-check on :
- treasuryWallet = address(_treasuryWallet) (#1716)
Check that the address is not zero.
Additional information: link
Reentrancy in WEBFOUR.transferFrom(address,address,uint256) (#1094-1109):
External calls:
- _transfer(sender,recipient,amount) (#1099)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
- pancakeSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1389-1395)
External calls sending eth:
- _transfer(sender,recipient,amount) (#1099)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (#1100-1107)
- _allowances[owner][spender] = amount (#1227)
Reentrancy in WEBFOUR.initContract(address,address) (#1007-1027):
External calls:
- pancakeSwapPair = IUniswapV2Factory(_pancakeSwapRouter.factory()).createPair(address(this),_pancakeSwapRouter.WETH()) (#1017-1018)
State variables written after the call(s):
- _isExcludedFee[owner()] = true (#1023)
- _isExcludedFee[address(this)] = true (#1026)
- pancakeSwapRouter = _pancakeSwapRouter (#1020)
Reentrancy in WEBFOUR._transfer(address,address,uint256) (#1231-1327):
External calls:
- _swapTokens(_contractTokenBalance) (#1313)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
- pancakeSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1389-1395)
External calls sending eth:
- _swapTokens(_contractTokenBalance) (#1313)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- _previousBuybackFee = buybackFee (#1642)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- _previousReflectFee = reflectionFee (#1639)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- _previousTreasuryFee = treasuryFee (#1640)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- _previousbnbRewardsFee = bnbRewardsFee (#1641)
- _rewardsLastClaim[from] = block.timestamp (#1315)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- _tFeeTotal = _tFeeTotal.add(tFee) (#1507)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- reflectionFee = _previousReflectFee (#1651)
- reflectionFee = 0 (#1644)
Reentrancy in WEBFOUR._swapTokens(uint256) (#1329-1355):
External calls:
- _swapTokensForBNB(_contractTokenBalance) (#1331)
- pancakeSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1389-1395)
State variables written after the call(s):
- bnbRewardsFeeBalance += bnbBalanceUpdate.mul(bnbRewardsFee).div(_liquidityFeeTotal) (#1336-1338)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in WEBFOUR._swapTokens(uint256) (#1329-1355):
External calls:
- _swapTokensForBNB(_contractTokenBalance) (#1331)
- pancakeSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1389-1395)
- _sendBNBToTreasury(treasuryBNBBalance) (#1345)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- _buyBackTokens(buybackBNBBalance) (#1353)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
External calls sending eth:
- _sendBNBToTreasury(treasuryBNBBalance) (#1345)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- _buyBackTokens(buybackBNBBalance) (#1353)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
Event emitted after the call(s):
- SwapBNBForTokens(buybackReceiver,amount,path) (#1377)
- _buyBackTokens(buybackBNBBalance) (#1353)
Reentrancy in WEBFOUR.transferFrom(address,address,uint256) (#1094-1109):
External calls:
- _transfer(sender,recipient,amount) (#1099)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
- pancakeSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1389-1395)
External calls sending eth:
- _transfer(sender,recipient,amount) (#1099)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1228)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,BEP20: transfer amount exceeds allowance)) (#1100-1107)
Reentrancy in WEBFOUR._swapTokensForBNB(uint256) (#1380-1398):
External calls:
- pancakeSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1389-1395)
Event emitted after the call(s):
- SwapTokensForBNB(tokenAmount,path) (#1397)
Reentrancy in WEBFOUR.claimBNBRewards() (#1799-1816):
External calls:
- _deliverFunds(_msgSender(),rewardsSent,Cant send BNB to address) (#1813)
- (sent) = address(_recipient).call{value: _value}() (#1838)
Event emitted after the call(s):
- SendBNBRewardsFee(_msgSender(),rewardsSent) (#1815)
Reentrancy in WEBFOUR._buyBackTokens(uint256) (#1361-1378):
External calls:
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
Event emitted after the call(s):
- SwapBNBForTokens(buybackReceiver,amount,path) (#1377)
Reentrancy in WEBFOUR._transfer(address,address,uint256) (#1231-1327):
External calls:
- _swapTokens(_contractTokenBalance) (#1313)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
- pancakeSwapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1389-1395)
External calls sending eth:
- _swapTokens(_contractTokenBalance) (#1313)
- (sent) = address(_recipient).call{value: _value}() (#1838)
- pancakeSwapRouter.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,buybackReceiver,block.timestamp) (#1368-1375)
Event emitted after the call(s):
- Transfer(sender,recipient,tTransferAmount) (#1438)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- Transfer(sender,recipient,tTransferAmount) (#1459)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- Transfer(sender,recipient,tTransferAmount) (#1480)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
- Transfer(sender,recipient,tTransferAmount) (#1502)
- _tokenTransfer(from,to,amount,takeFee) (#1326)
Apply the check-effects-interactions pattern.
Additional information: link
WEBFOUR.canClaimRewards(address) (#1793-1797) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp > _rewardsLastClaim[user].add(rewardsClaimTimeSeconds) (#1794-1796)
WEBFOUR._transfer(address,address,uint256) (#1231-1327) uses timestamp for comparisons
Dangerous comparisons:
- block.timestamp == launchTime (#1261)
Avoid relying on block.timestamp.
Additional information: link
Address.isContract(address) (#441-451) uses assembly
- INLINE ASM (#447-449)
Address.verifyCallResult(bool,bytes,string) (#610-630) uses assembly
- INLINE ASM (#622-625)
Do not use evm assembly.
Additional information: link
WEBFOUR.includeInReward(address) (#1206-1217) has costly operations inside a loop:
- _excluded.pop() (#1213)
WEBFOUR.amnestySniper(address) (#1767-1779) has costly operations inside a loop:
- _confirmedSnipers.pop() (#1775)
Use a local variable to hold the loop computation result.
Additional information: link
Address.verifyCallResult(bool,bytes,string) (#610-630) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#149-154) is never used and should be removed
Address.sendValue(address,uint256) (#469-474) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#523-529) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#161-166) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#593-602) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#583-585) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#107-113) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#302-311) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#537-548) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#276-285) is never used and should be removed
Context._msgData() (#335-337) is never used and should be removed
Address.functionStaticCall(address,bytes) (#556-558) is never used and should be removed
SafeMath.mod(uint256,uint256) (#236-238) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#132-142) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#120-125) is never used and should be removed
Address.isContract(address) (#441-451) is never used and should be removed
Address.functionCall(address,bytes,string) (#504-510) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#566-575) is never used and should be removed
Address.functionCall(address,bytes) (#494-496) is never used and should be removed
Remove unused functions.
Additional information: link
WEBFOUR._previousTreasuryFee (#944) is set pre-construction with a non-constant function or state variable:
- treasuryFee
WEBFOUR._previousBuybackFee (#953) is set pre-construction with a non-constant function or state variable:
- buybackFee
WEBFOUR._previousReflectFee (#940) is set pre-construction with a non-constant function or state variable:
- reflectionFee
WEBFOUR._previousbnbRewardsFee (#948) is set pre-construction with a non-constant function or state variable:
- bnbRewardsFee
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
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#537-548):
- (success,returndata) = target.call{value: value}(data) (#546)
Low level call in Address.functionStaticCall(address,bytes,string) (#566-575):
- (success,returndata) = target.staticcall(data) (#573)
Low level call in Address.sendValue(address,uint256) (#469-474):
- (success) = recipient.call{value: amount}() (#472)
Low level call in Address.functionDelegateCall(address,bytes,string) (#593-602):
- (success,returndata) = target.delegatecall(data) (#600)
Low level call in WEBFOUR._deliverFunds(address,uint256,string) (#1833-1841):
- (sent) = address(_recipient).call{value: _value}() (#1838)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Parameter WEBFOUR.setPancakeSwapRouter(address)._pancakeSwapRouterAddress (#1726) is not in mixedCase
Parameter WEBFOUR.isPancakeSwapPair(address)._pair (#1662) is not in mixedCase
Parameter WEBFOUR.setReflectionFeePercent(uint256)._newFee (#1695) is not in mixedCase
Constant WEBFOUR._tTotal (#928) is not in UPPER_CASE_WITH_UNDERSCORES
Parameter WEBFOUR.setIsSwapFeesEnabled(bool)._enabled (#1719) is not in mixedCase
Parameter WEBFOUR.addPancakeSwapPair(address)._pair (#1741) is not in mixedCase
Parameter WEBFOUR.setTreasuryAddress(address)._treasuryWallet (#1715) is not in mixedCase
Parameter WEBFOUR.setMaxSellAmount(uint256)._maxSellAmount (#1723) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#675) is not in mixedCase
Constant WEBFOUR._name (#920) is not in UPPER_CASE_WITH_UNDERSCORES
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#692) is not in mixedCase
Parameter WEBFOUR.setBuybackTokenAddress(address)._tokenAddress (#1733) is not in mixedCase
Parameter WEBFOUR.setRewardsClaimTimeSeconds(uint256)._seconds (#1691) is not in mixedCase
Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#674) is not in mixedCase
Parameter WEBFOUR.setBuybackFeePercent(uint256)._newFee (#1710) is not in mixedCase
Constant WEBFOUR._symbol (#921) is not in UPPER_CASE_WITH_UNDERSCORES
Constant WEBFOUR._decimals (#922) is not in UPPER_CASE_WITH_UNDERSCORES
Parameter WEBFOUR.removePancakeSwapPair(address)._pair (#1745) is not in mixedCase
Parameter WEBFOUR.setFeeRate(uint256)._rate (#1818) is not in mixedCase
Function IUniswapV2Router01.WETH() (#717) is not in mixedCase
Parameter WEBFOUR.setBuybackReceiver(address)._receiver (#1737) is not in mixedCase
Parameter WEBFOUR.setTreasuryFeePercent(uint256)._newFee (#1700) is not in mixedCase
Parameter WEBFOUR.setCanTransfer(bool)._canTransfer (#1749) is not in mixedCase
Parameter WEBFOUR.setBNBRewardsFeePercent(uint256)._newFee (#1705) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.
Average 30d number of PancakeSwap swaps is less than 1. Token is either dead or inactive.
Contract has 11% buy tax and 10% sell tax.
Taxes are suspiciously high (over 10%) and contract ownership is not renounced. Token has a high risk of becoming a honeypot.
Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.
Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.
Token is deployed only at one blockchain
Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap
Additional information: link
Unable to find token contract audit
Unable to find audit link on the website
Unable to find whitepaper link on the website
Unable to find Telegram link on the website
Unable to find token on CoinHunt
Additional information: link
Unable to find code repository for the project
Unable to find Twitter link on the website
Token is not listed at Mobula.Finance
Additional information: link
Token has no active CoinMarketCap listing / rank
Token has a considerable age, but average PancakeSwap 30d trading volume is low
Token has relatively low CoinGecko rank
Last post in Twitter was more than 180 days ago
Unable to find Blog account (Reddit or Medium)
Unable to find Youtube account
Unable to find Discord account