Play2Burn Modern game studio.
Burning Coinman game live.
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Contract: 0x547C927Dc80c0F94A3825C805D725a69aB16DD6E
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Play2Burn.addLiquidity(uint256,uint256) (#1440-1453) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in Play2Burn._transfer(address,address,uint256) (#1332-1389):
External calls:
- swapAndSendFee(forMarketing) (#1374)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
External calls sending eth:
- swapAndSendFee(forMarketing) (#1374)
- address(_marketingWallet).transfer(newBalance) (#1419)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#1248)
- _rOwned[_rewardWallet] = _rOwned[_rewardWallet].add(rReward) (#1260)
- _rOwned[address(this)] = _rOwned[address(this)].add(rMarketing) (#1261)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1523)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1499)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1574)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1549)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1500)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1550)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1525)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1576)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _rTotal = _rTotal.sub(rFee) (#1135)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#1250)
- _tOwned[_rewardWallet] = _tOwned[_rewardWallet].add(tReward) (#1263)
- _tOwned[address(this)] = _tOwned[address(this)].add(tMarketing) (#1264)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1573)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1548)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1524)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1575)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- inSwapAndLiquify = true (#869)
- inSwapAndLiquify = false (#871)
Apply the check-effects-interactions pattern.
Additional information: link
Play2Burn.claimStuckTokens(address) (#1118-1129) ignores return value by erc20token.transfer(owner(),balance) (#1128)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.
Additional information: link
Combination 1: Reentrancy vulnerabilities + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.
Combination 2: Unchecked transfer + Functions that send Ether to arbitraty destination. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.
Combination 3: Reentrancy vulnerabilities + Unchecked transfer vulnerability. Usual for scams. May be justified by some complex mechanics (e.g. rebase, reflections). DYOR & manual audit are advised.
Play2Burn.addLiquidity(uint256,uint256) (#1440-1453) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
Ensure that all the return values of the function calls are used.
Additional information: link
Play2Burn.allowance(address,address).owner (#934) shadows:
- Ownable.owner() (#226-228) (function)
Play2Burn._approve(address,address,uint256).owner (#1321) shadows:
- Ownable.owner() (#226-228) (function)
Rename the local variables that shadow another component.
Additional information: link
Play2Burn.setNumTokensSellToAddToLiquidity(uint256) (#1091-1096) should emit an event for:
- numTokensSellToAddToLiquidity = numTokens (#1095)
Play2Burn.setMaxTx(uint256) (#1109-1111) should emit an event for:
- _maxTxAmount = maxTx (#1110)
Emit an event for critical parameter changes.
Additional information: link
Play2Burn.updateRouter(address)._uniswapV2Pair (#1104-1105) lacks a zero-check on :
- uniswapV2Pair = _uniswapV2Pair (#1106)
Check that the address is not zero.
Additional information: link
Reentrancy in Play2Burn._transfer(address,address,uint256) (#1332-1389):
External calls:
- swapAndSendFee(forMarketing) (#1374)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
External calls sending eth:
- swapAndSendFee(forMarketing) (#1374)
- address(_marketingWallet).transfer(newBalance) (#1419)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
State variables written after the call(s):
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- _allowances[owner][spender] = amount (#1328)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _liquidityFee = buyFee.liquidityFee (#1304)
- _liquidityFee = sellFee.liquidityFee (#1311)
- _liquidityFee = 0 (#1297)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _marketingFee = 0 (#1299)
- _marketingFee = buyFee.marketingFee (#1306)
- _marketingFee = sellFee.marketingFee (#1313)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _rewardFee = 0 (#1298)
- _rewardFee = buyFee.rewardFee (#1305)
- _rewardFee = sellFee.rewardFee (#1312)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _tFeeTotal = _tFeeTotal.add(tFee) (#1136)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _taxFee = buyFee.taxFee (#1303)
- _taxFee = sellFee.taxFee (#1310)
- _taxFee = 0 (#1296)
Reentrancy in Play2Burn.constructor() (#874-902):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#891-892)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#898)
- _isExcludedFromFee[address(this)] = true (#899)
- uniswapV2Router = _uniswapV2Router (#895)
Reentrancy in Play2Burn.swapAndLiquify(uint256) (#1391-1412):
External calls:
- swapTokensForEth(half) (#1403)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
- addLiquidity(otherHalf,newBalance) (#1409)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1409)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
State variables written after the call(s):
- addLiquidity(otherHalf,newBalance) (#1409)
- _allowances[owner][spender] = amount (#1328)
Reentrancy in Play2Burn.transferFrom(address,address,uint256) (#952-967):
External calls:
- _transfer(sender,recipient,amount) (#957)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
External calls sending eth:
- _transfer(sender,recipient,amount) (#957)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
- address(_marketingWallet).transfer(newBalance) (#1419)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#958-965)
- _allowances[owner][spender] = amount (#1328)
Reentrancy in Play2Burn.updateRouter(address) (#1098-1107):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this),uniswapV2Router.WETH()) (#1104-1105)
State variables written after the call(s):
- uniswapV2Pair = _uniswapV2Pair (#1106)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in Play2Burn._transfer(address,address,uint256) (#1332-1389):
External calls:
- swapAndSendFee(forMarketing) (#1374)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
External calls sending eth:
- swapAndSendFee(forMarketing) (#1374)
- address(_marketingWallet).transfer(newBalance) (#1419)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1329)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- SwapAndLiquify(half,newBalance,otherHalf) (#1411)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- Transfer(sender,recipient,tTransferAmount) (#1507)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- Transfer(sender,recipient,tTransferAmount) (#1532)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- Transfer(sender,recipient,tTransferAmount) (#1557)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- Transfer(sender,recipient,tTransferAmount) (#1583)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
Reentrancy in Play2Burn.constructor() (#874-902):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#891-892)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#901)
Reentrancy in Play2Burn.swapAndLiquify(uint256) (#1391-1412):
External calls:
- swapTokensForEth(half) (#1403)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
- addLiquidity(otherHalf,newBalance) (#1409)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1409)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1329)
- addLiquidity(otherHalf,newBalance) (#1409)
- SwapAndLiquify(half,newBalance,otherHalf) (#1411)
Reentrancy in Play2Burn.transferFrom(address,address,uint256) (#952-967):
External calls:
- _transfer(sender,recipient,amount) (#957)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1431-1437)
External calls sending eth:
- _transfer(sender,recipient,amount) (#957)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
- address(_marketingWallet).transfer(newBalance) (#1419)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1329)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#958-965)
Apply the check-effects-interactions pattern.
Additional information: link
Address.isContract(address) (#293-303) uses assembly
- INLINE ASM (#299-301)
Address.verifyCallResult(bool,bytes,string) (#462-482) uses assembly
- INLINE ASM (#474-477)
Do not use evm assembly.
Additional information: link
Different versions of Solidity is used:
- Version used: ['>=0.5.0', '>=0.6.2', '^0.8.0', '^0.8.10']
- >=0.6.2 (#4)
- >=0.6.2 (#102)
- >=0.5.0 (#148)
- ^0.8.0 (#170)
- ^0.8.0 (#196)
- ^0.8.0 (#270)
- ^0.8.0 (#489)
- ^0.8.0 (#718)
- ^0.8.10 (#801)
Use one Solidity version.
Additional information: link
Play2Burn.includeInReward(address) (#1056-1067) has costly operations inside a loop:
- _excluded.pop() (#1063)
Use a local variable to hold the loop computation result.
Additional information: link
Address.functionCall(address,bytes) (#346-348) is never used and should be removed
Address.functionCall(address,bytes,string) (#356-362) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#375-381) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#389-400) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#435-437) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#445-454) is never used and should be removed
Address.functionStaticCall(address,bytes) (#408-410) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#418-427) is never used and should be removed
Address.isContract(address) (#293-303) is never used and should be removed
Address.sendValue(address,uint256) (#321-326) is never used and should be removed
Address.verifyCallResult(bool,bytes,string) (#462-482) is never used and should be removed
Context._msgData() (#187-189) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#676-685) is never used and should be removed
SafeMath.mod(uint256,uint256) (#636-638) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#702-711) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#507-513) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#549-554) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#561-566) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#532-542) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#520-525) is never used and should be removed
Remove unused functions.
Additional information: link
Play2Burn._rTotal (#819) is set pre-construction with a non-constant function or state variable:
- (MAX - (MAX % _tTotal))
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 (#4) allows old versions
Pragma version>=0.6.2 (#102) allows old versions
Pragma version>=0.5.0 (#148) allows old versions
Pragma version^0.8.0 (#170) allows old versions
Pragma version^0.8.0 (#196) allows old versions
Pragma version^0.8.0 (#270) allows old versions
Pragma version^0.8.0 (#489) allows old versions
Pragma version^0.8.0 (#718) allows old versions
Pragma version^0.8.10 (#801) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.10 is not recommended for deployment
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 Address.sendValue(address,uint256) (#321-326):
- (success) = recipient.call{value: amount}() (#324)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#389-400):
- (success,returndata) = target.call{value: value}(data) (#398)
Low level call in Address.functionStaticCall(address,bytes,string) (#418-427):
- (success,returndata) = target.staticcall(data) (#425)
Low level call in Address.functionDelegateCall(address,bytes,string) (#445-454):
- (success,returndata) = target.delegatecall(data) (#452)
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
Parameter Play2Burn.setSwapAndLiquifyEnabled(bool)._enabled (#1113) is not in mixedCase
Parameter Play2Burn.claimStuckTokens(address)._token (#1118) is not in mixedCase
Parameter Play2Burn.calculateTaxFee(uint256)._amount (#1267) is not in mixedCase
Parameter Play2Burn.calculateLiquidityFee(uint256)._amount (#1271) is not in mixedCase
Parameter Play2Burn.calculateRewardFee(uint256)._amount (#1279) is not in mixedCase
Parameter Play2Burn.calculateMarketingFee(uint256)._amount (#1287) is not in mixedCase
Variable Play2Burn._marketingWallet (#851) is not in mixedCase
Variable Play2Burn._rewardWallet (#852) is not in mixedCase
Variable Play2Burn._maxTxAmount (#857) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Reentrancy in Play2Burn._transfer(address,address,uint256) (#1332-1389):
External calls:
- swapAndSendFee(forMarketing) (#1374)
- address(_marketingWallet).transfer(newBalance) (#1419)
External calls sending eth:
- swapAndSendFee(forMarketing) (#1374)
- address(_marketingWallet).transfer(newBalance) (#1419)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
State variables written after the call(s):
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- _allowances[owner][spender] = amount (#1328)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _liquidityFee = buyFee.liquidityFee (#1304)
- _liquidityFee = sellFee.liquidityFee (#1311)
- _liquidityFee = 0 (#1297)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _marketingFee = 0 (#1299)
- _marketingFee = buyFee.marketingFee (#1306)
- _marketingFee = sellFee.marketingFee (#1313)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#1248)
- _rOwned[_rewardWallet] = _rOwned[_rewardWallet].add(rReward) (#1260)
- _rOwned[address(this)] = _rOwned[address(this)].add(rMarketing) (#1261)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1523)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1499)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1574)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#1549)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1500)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1550)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1525)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#1576)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _rTotal = _rTotal.sub(rFee) (#1135)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _rewardFee = 0 (#1298)
- _rewardFee = buyFee.rewardFee (#1305)
- _rewardFee = sellFee.rewardFee (#1312)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _tFeeTotal = _tFeeTotal.add(tFee) (#1136)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#1250)
- _tOwned[_rewardWallet] = _tOwned[_rewardWallet].add(tReward) (#1263)
- _tOwned[address(this)] = _tOwned[address(this)].add(tMarketing) (#1264)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1573)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#1548)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1524)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#1575)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- _taxFee = buyFee.taxFee (#1303)
- _taxFee = sellFee.taxFee (#1310)
- _taxFee = 0 (#1296)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- inSwapAndLiquify = true (#869)
- inSwapAndLiquify = false (#871)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1329)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- SwapAndLiquify(half,newBalance,otherHalf) (#1411)
- swapAndLiquify(contractTokenBalance - forMarketing) (#1376)
- Transfer(sender,recipient,tTransferAmount) (#1507)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- Transfer(sender,recipient,tTransferAmount) (#1532)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- Transfer(sender,recipient,tTransferAmount) (#1557)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
- Transfer(sender,recipient,tTransferAmount) (#1583)
- _tokenTransfer(from,to,amount,takeFee) (#1388)
Reentrancy in Play2Burn.transferFrom(address,address,uint256) (#952-967):
External calls:
- _transfer(sender,recipient,amount) (#957)
- address(_marketingWallet).transfer(newBalance) (#1419)
External calls sending eth:
- _transfer(sender,recipient,amount) (#957)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1445-1452)
- address(_marketingWallet).transfer(newBalance) (#1419)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#958-965)
- _allowances[owner][spender] = amount (#1328)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#1329)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#958-965)
Apply the check-effects-interactions pattern.
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 Play2Burn._getRValues(uint256,uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1217-1221) is too similar to Play2Burn._transferFromExcluded(address,address,uint256).tTransferAmount (#1544)
Variable Play2Burn.reflectionFromToken(uint256,bool).rTransferAmount (#1028) is too similar to Play2Burn._transferStandard(address,address,uint256).tTransferAmount (#1495)
Variable Play2Burn.reflectionFromToken(uint256,bool).rTransferAmount (#1028) is too similar to Play2Burn._transferFromExcluded(address,address,uint256).tTransferAmount (#1544)
Variable Play2Burn._transferBothExcluded(address,address,uint256).rTransferAmount (#1567) is too similar to Play2Burn._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable Play2Burn.reflectionFromToken(uint256,bool).rTransferAmount (#1028) is too similar to Play2Burn._getValues(uint256).tTransferAmount (#1152)
Variable Play2Burn._transferFromExcluded(address,address,uint256).rTransferAmount (#1542) is too similar to Play2Burn._transferStandard(address,address,uint256).tTransferAmount (#1495)
Variable Play2Burn._transferFromExcluded(address,address,uint256).rTransferAmount (#1542) is too similar to Play2Burn._transferFromExcluded(address,address,uint256).tTransferAmount (#1544)
Variable Play2Burn._transferBothExcluded(address,address,uint256).rTransferAmount (#1567) is too similar to Play2Burn._getTValues(uint256).tTransferAmount (#1191)
Variable Play2Burn.reflectionFromToken(uint256,bool).rTransferAmount (#1028) is too similar to Play2Burn._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable Play2Burn._transferStandard(address,address,uint256).rTransferAmount (#1493) is too similar to Play2Burn._transferStandard(address,address,uint256).tTransferAmount (#1495)
Variable Play2Burn._transferBothExcluded(address,address,uint256).rTransferAmount (#1567) is too similar to Play2Burn._transferStandard(address,address,uint256).tTransferAmount (#1495)
Variable Play2Burn._transferStandard(address,address,uint256).rTransferAmount (#1493) is too similar to Play2Burn._transferFromExcluded(address,address,uint256).tTransferAmount (#1544)
Variable Play2Burn._transferBothExcluded(address,address,uint256).rTransferAmount (#1567) is too similar to Play2Burn._transferFromExcluded(address,address,uint256).tTransferAmount (#1544)
Variable Play2Burn.reflectionFromToken(uint256,bool).rTransferAmount (#1028) is too similar to Play2Burn._getTValues(uint256).tTransferAmount (#1191)
Variable Play2Burn._getRValues(uint256,uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1217-1221) is too similar to Play2Burn._transferStandard(address,address,uint256).tTransferAmount (#1495)
Variable Play2Burn._transferBothExcluded(address,address,uint256).rTransferAmount (#1567) is too similar to Play2Burn._getValues(uint256).tTransferAmount (#1152)
Variable Play2Burn._transferToExcluded(address,address,uint256).rTransferAmount (#1517) is too similar to Play2Burn._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable Play2Burn._getValues(uint256).rTransferAmount (#1158) is too similar to Play2Burn._transferStandard(address,address,uint256).tTransferAmount (#1495)
Variable Play2Burn._getRValues(uint256,uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1217-1221) is too similar to Play2Burn._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable Play2Burn._transferToExcluded(address,address,uint256).rTransferAmount (#1517) is too similar to Play2Burn._transferStandard(address,address,uint256).tTransferAmount (#1495)
Variable Play2Burn._transferStandard(address,address,uint256).rTransferAmount (#1493) is too similar to Play2Burn._getValues(uint256).tTransferAmount (#1152)
Variable Play2Burn.reflectionFromToken(uint256,bool).rTransferAmount (#1028) is too similar to Play2Burn._transferToExcluded(address,address,uint256).tTransferAmount (#1519)
Variable Play2Burn._getValues(uint256).rTransferAmount (#1158) is too similar to Play2Burn._getValues(uint256).tTransferAmount (#1152)
Variable Play2Burn._transferFromExcluded(address,address,uint256).rTransferAmount (#1542) is too similar to Play2Burn._getValues(uint256).tTransferAmount (#1152)
Variable Play2Burn._transferBothExcluded(address,address,uint256).rTransferAmount (#1567) is too similar to Play2Burn._transferToExcluded(address,address,uint256).tTransferAmount (#1519)
Variable Play2Burn._transferToExcluded(address,address,uint256).rTransferAmount (#1517) is too similar to Play2Burn._getValues(uint256).tTransferAmount (#1152)
Variable Play2Burn._getRValues(uint256,uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1217-1221) is too similar to Play2Burn._getValues(uint256).tTransferAmount (#1152)
Variable Play2Burn._getValues(uint256).rTransferAmount (#1158) is too similar to Play2Burn._transferFromExcluded(address,address,uint256).tTransferAmount (#1544)
Variable Play2Burn._transferToExcluded(address,address,uint256).rTransferAmount (#1517) is too similar to Play2Burn._transferFromExcluded(address,address,uint256).tTransferAmount (#1544)
Variable Play2Burn._transferStandard(address,address,uint256).rTransferAmount (#1493) is too similar to Play2Burn._getTValues(uint256).tTransferAmount (#1191)
Variable Play2Burn._getValues(uint256).rTransferAmount (#1158) is too similar to Play2Burn._getTValues(uint256).tTransferAmount (#1191)
Variable Play2Burn._transferFromExcluded(address,address,uint256).rTransferAmount (#1542) is too similar to Play2Burn._getTValues(uint256).tTransferAmount (#1191)
Variable Play2Burn._transferToExcluded(address,address,uint256).rTransferAmount (#1517) is too similar to Play2Burn._getTValues(uint256).tTransferAmount (#1191)
Variable Play2Burn._getRValues(uint256,uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1217-1221) is too similar to Play2Burn._getTValues(uint256).tTransferAmount (#1191)
Variable Play2Burn._transferStandard(address,address,uint256).rTransferAmount (#1493) is too similar to Play2Burn._transferToExcluded(address,address,uint256).tTransferAmount (#1519)
Variable Play2Burn._getValues(uint256).rTransferAmount (#1158) is too similar to Play2Burn._transferToExcluded(address,address,uint256).tTransferAmount (#1519)
Variable Play2Burn._transferFromExcluded(address,address,uint256).rTransferAmount (#1542) is too similar to Play2Burn._transferToExcluded(address,address,uint256).tTransferAmount (#1519)
Variable Play2Burn._transferStandard(address,address,uint256).rTransferAmount (#1493) is too similar to Play2Burn._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable Play2Burn._transferToExcluded(address,address,uint256).rTransferAmount (#1517) is too similar to Play2Burn._transferToExcluded(address,address,uint256).tTransferAmount (#1519)
Variable Play2Burn._getRValues(uint256,uint256,uint256,uint256,uint256,uint256).rTransferAmount (#1217-1221) is too similar to Play2Burn._transferToExcluded(address,address,uint256).tTransferAmount (#1519)
Variable Play2Burn._getValues(uint256).rTransferAmount (#1158) is too similar to Play2Burn._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Variable Play2Burn._transferFromExcluded(address,address,uint256).rTransferAmount (#1542) is too similar to Play2Burn._transferBothExcluded(address,address,uint256).tTransferAmount (#1569)
Prevent variables from having similar names.
Additional information: link
Play2Burn._decimals (#824) should be constant
Play2Burn._marketingWallet (#851) should be constant
Play2Burn._name (#822) should be constant
Play2Burn._rewardWallet (#852) should be constant
Play2Burn._symbol (#823) should be constant
Play2Burn._tTotal (#818) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#245-247)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#253-256)
name() should be declared external:
- Play2Burn.name() (#904-906)
symbol() should be declared external:
- Play2Burn.symbol() (#908-910)
decimals() should be declared external:
- Play2Burn.decimals() (#912-914)
totalSupply() should be declared external:
- Play2Burn.totalSupply() (#916-918)
transfer(address,uint256) should be declared external:
- Play2Burn.transfer(address,uint256) (#925-932)
allowance(address,address) should be declared external:
- Play2Burn.allowance(address,address) (#934-941)
approve(address,uint256) should be declared external:
- Play2Burn.approve(address,uint256) (#943-950)
transferFrom(address,address,uint256) should be declared external:
- Play2Burn.transferFrom(address,address,uint256) (#952-967)
increaseAllowance(address,uint256) should be declared external:
- Play2Burn.increaseAllowance(address,uint256) (#969-980)
decreaseAllowance(address,uint256) should be declared external:
- Play2Burn.decreaseAllowance(address,uint256) (#982-996)
isExcludedFromReward(address) should be declared external:
- Play2Burn.isExcludedFromReward(address) (#998-1000)
totalFees() should be declared external:
- Play2Burn.totalFees() (#1002-1004)
deliver(uint256) should be declared external:
- Play2Burn.deliver(uint256) (#1006-1016)
reflectionFromToken(uint256,bool) should be declared external:
- Play2Burn.reflectionFromToken(uint256,bool) (#1018-1031)
excludeFromReward(address) should be declared external:
- Play2Burn.excludeFromReward(address) (#1046-1054)
setSwapAndLiquifyEnabled(bool) should be declared external:
- Play2Burn.setSwapAndLiquifyEnabled(bool) (#1113-1116)
isExcludedFromFee(address) should be declared external:
- Play2Burn.isExcludedFromFee(address) (#1316-1318)
Use the external attribute for functions never called from the contract.
Additional information: link
Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.
Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.
Token is deployed only at one blockchain
Token has only one trading pair
Unable to find PancakeSwap trading pair to compute liquidity.
Unable to find PancakeSwap trading pair to compute volume.
Unable to find PancakeSwap trading pair to compute number of swaps.
BscScan page for the token does not contain additional info: website, socials, description, etc.
Additional information: link
Unable to find token on CoinGecko
Additional information: link
Unable to find token on CoinMarketCap
Additional information: link
Unable to find token/project description on the website or on BscScan, CoinMarketCap
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 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
Token has no active CoinMarketCap listing / rank
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Twitter account has less than 100 followers
Telegram account has relatively few subscribers
Last post in Twitter was more than 30 days ago
Unable to find Youtube account
Unable to find Discord account
Twitter account has few posts