CBV2 [Crypto Booster V.2] Token

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

Reentrancy in BuyBackToken._transfer(address,address,uint256) (#666-704):
External calls:
- swapTokens(contractTokenBalance) (#684)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#735-741)
- buyBackTokens(balance.div(100)) (#692)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
External calls sending eth:
- swapTokens(contractTokenBalance) (#684)
- recipient.transfer(amount) (#988)
- buyBackTokens(balance.div(100)) (#692)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _liquidityFee = _previousLiquidityFee (#915)
- _liquidityFee = 0 (#908)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#882)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#807)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#798)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#828)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#799)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#818)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#819)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#809)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#830)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _rTotal = _rTotal.sub(rFee) (#837)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#884)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#817)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#827)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#808)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#829)
- buyBackTokens(balance.div(100)) (#692)
- inSwapAndLiquify = true (#493)
- inSwapAndLiquify = false (#495)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- marketingFee = previousMarketingFee (#917)
- marketingFee = 0 (#910)
Apply the check-effects-interactions pattern.

Additional information: link

Contract ownership is not renounced (belongs to a wallet)

BuyBackToken.addLiquidity(uint256,uint256) (#763-776) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#768-775)
Ensure that all the return values of the function calls are used.

Additional information: link

BuyBackToken.allowance(address,address).owner (#567) shadows:
- Ownable.owner() (#166-168) (function)
BuyBackToken._approve(address,address,uint256).owner (#658) shadows:
- Ownable.owner() (#166-168) (function)
Rename the local variables that shadow another component.

Additional information: link

Contract name (Crypto Booster V.2) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.

Redundant expression "this (#20)" inContext (#14-23)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#288) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#289)
Variable BuyBackToken._transferBothExcluded(address,address,uint256).rTransferAmount (#826) is too similar to BuyBackToken._transferBothExcluded(address,address,uint256).tTransferAmount (#826)
Variable BuyBackToken._transferStandard(address,address,uint256).rTransferAmount (#797) is too similar to BuyBackToken._transferStandard(address,address,uint256).tTransferAmount (#797)
Variable BuyBackToken._transferStandard(address,address,uint256).rTransferAmount (#797) is too similar to BuyBackToken._transferBothExcluded(address,address,uint256).tTransferAmount (#826)
Variable BuyBackToken._transferFromExcluded(address,address,uint256).rTransferAmount (#816) is too similar to BuyBackToken._transferBothExcluded(address,address,uint256).tTransferAmount (#826)
Variable BuyBackToken._getValues(uint256).rTransferAmount (#843) is too similar to BuyBackToken._transferToExcluded(address,address,uint256).tTransferAmount (#806)
Variable BuyBackToken._getValues(uint256).rTransferAmount (#843) is too similar to BuyBackToken._transferFromExcluded(address,address,uint256).tTransferAmount (#816)
Variable BuyBackToken._transferBothExcluded(address,address,uint256).rTransferAmount (#826) is too similar to BuyBackToken._transferToExcluded(address,address,uint256).tTransferAmount (#806)
Variable BuyBackToken._transferStandard(address,address,uint256).rTransferAmount (#797) is too similar to BuyBackToken._transferToExcluded(address,address,uint256).tTransferAmount (#806)
Variable BuyBackToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#858) is too similar to BuyBackToken._transferBothExcluded(address,address,uint256).tTransferAmount (#826)
Variable BuyBackToken._transferBothExcluded(address,address,uint256).rTransferAmount (#826) is too similar to BuyBackToken._transferFromExcluded(address,address,uint256).tTransferAmount (#816)
Variable BuyBackToken._transferFromExcluded(address,address,uint256).rTransferAmount (#816) is too similar to BuyBackToken._transferToExcluded(address,address,uint256).tTransferAmount (#806)
Variable BuyBackToken._transferStandard(address,address,uint256).rTransferAmount (#797) is too similar to BuyBackToken._transferFromExcluded(address,address,uint256).tTransferAmount (#816)
Variable BuyBackToken._transferFromExcluded(address,address,uint256).rTransferAmount (#816) is too similar to BuyBackToken._transferFromExcluded(address,address,uint256).tTransferAmount (#816)
Variable BuyBackToken.reflectionFromToken(uint256,bool).rTransferAmount (#624) is too similar to BuyBackToken._transferStandard(address,address,uint256).tTransferAmount (#797)
Variable BuyBackToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#858) is too similar to BuyBackToken._transferToExcluded(address,address,uint256).tTransferAmount (#806)
Variable BuyBackToken.reflectionFromToken(uint256,bool).rTransferAmount (#624) is too similar to BuyBackToken._transferBothExcluded(address,address,uint256).tTransferAmount (#826)
Variable BuyBackToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#858) is too similar to BuyBackToken._transferFromExcluded(address,address,uint256).tTransferAmount (#816)
Variable BuyBackToken._transferToExcluded(address,address,uint256).rTransferAmount (#806) is too similar to BuyBackToken._transferToExcluded(address,address,uint256).tTransferAmount (#806)
Variable BuyBackToken._transferToExcluded(address,address,uint256).rTransferAmount (#806) is too similar to BuyBackToken._transferFromExcluded(address,address,uint256).tTransferAmount (#816)
Variable BuyBackToken.reflectionFromToken(uint256,bool).rTransferAmount (#624) is too similar to BuyBackToken._transferToExcluded(address,address,uint256).tTransferAmount (#806)
Variable BuyBackToken._getValues(uint256).rTransferAmount (#843) is too similar to BuyBackToken._transferBothExcluded(address,address,uint256).tTransferAmount (#826)
Variable BuyBackToken.reflectionFromToken(uint256,bool).rTransferAmount (#624) is too similar to BuyBackToken._transferFromExcluded(address,address,uint256).tTransferAmount (#816)
Variable BuyBackToken._transferToExcluded(address,address,uint256).rTransferAmount (#806) is too similar to BuyBackToken._getTValues(uint256).tTransferAmount (#850)
Variable BuyBackToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#858) is too similar to BuyBackToken._transferStandard(address,address,uint256).tTransferAmount (#797)
Variable BuyBackToken._transferFromExcluded(address,address,uint256).rTransferAmount (#816) is too similar to BuyBackToken._getTValues(uint256).tTransferAmount (#850)
Variable BuyBackToken._transferBothExcluded(address,address,uint256).rTransferAmount (#826) is too similar to BuyBackToken._transferStandard(address,address,uint256).tTransferAmount (#797)
Variable BuyBackToken._getValues(uint256).rTransferAmount (#843) is too similar to BuyBackToken._transferStandard(address,address,uint256).tTransferAmount (#797)
Variable BuyBackToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#858) is too similar to BuyBackToken._getValues(uint256).tTransferAmount (#842)
Variable BuyBackToken._transferToExcluded(address,address,uint256).rTransferAmount (#806) is too similar to BuyBackToken._transferBothExcluded(address,address,uint256).tTransferAmount (#826)
Variable BuyBackToken.reflectionFromToken(uint256,bool).rTransferAmount (#624) is too similar to BuyBackToken._getValues(uint256).tTransferAmount (#842)
Variable BuyBackToken._transferBothExcluded(address,address,uint256).rTransferAmount (#826) is too similar to BuyBackToken._getValues(uint256).tTransferAmount (#842)
Variable BuyBackToken._getValues(uint256).rTransferAmount (#843) is too similar to BuyBackToken._getValues(uint256).tTransferAmount (#842)
Variable BuyBackToken._transferStandard(address,address,uint256).rTransferAmount (#797) is too similar to BuyBackToken._getValues(uint256).tTransferAmount (#842)
Variable BuyBackToken._transferToExcluded(address,address,uint256).rTransferAmount (#806) is too similar to BuyBackToken._transferStandard(address,address,uint256).tTransferAmount (#797)
Variable BuyBackToken._transferFromExcluded(address,address,uint256).rTransferAmount (#816) is too similar to BuyBackToken._transferStandard(address,address,uint256).tTransferAmount (#797)
Variable BuyBackToken._transferToExcluded(address,address,uint256).rTransferAmount (#806) is too similar to BuyBackToken._getValues(uint256).tTransferAmount (#842)
Variable BuyBackToken._transferFromExcluded(address,address,uint256).rTransferAmount (#816) is too similar to BuyBackToken._getValues(uint256).tTransferAmount (#842)
Variable BuyBackToken._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#858) is too similar to BuyBackToken._getTValues(uint256).tTransferAmount (#850)
Variable BuyBackToken.reflectionFromToken(uint256,bool).rTransferAmount (#624) is too similar to BuyBackToken._getTValues(uint256).tTransferAmount (#850)
Variable BuyBackToken._transferBothExcluded(address,address,uint256).rTransferAmount (#826) is too similar to BuyBackToken._getTValues(uint256).tTransferAmount (#850)
Variable BuyBackToken._getValues(uint256).rTransferAmount (#843) is too similar to BuyBackToken._getTValues(uint256).tTransferAmount (#850)
Variable BuyBackToken._transferStandard(address,address,uint256).rTransferAmount (#797) is too similar to BuyBackToken._getTValues(uint256).tTransferAmount (#850)
Prevent variables from having similar names.

Additional information: link

Address.isContract(address) (#96-105) uses assembly
- INLINE ASM (#103)
Address._functionCallWithValue(address,bytes,uint256,string) (#133-150) uses assembly
- INLINE ASM (#142-145)
Do not use evm assembly.

Additional information: link

BuyBackToken.includeInReward(address) (#645-656) has costly operations inside a loop:
- _excluded.pop() (#652)
Use a local variable to hold the loop computation result.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#133-150) is never used and should be removed
Address.functionCall(address,bytes) (#116-118) is never used and should be removed
Address.functionCall(address,bytes,string) (#120-122) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#124-126) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#128-131) is never used and should be removed
Address.isContract(address) (#96-105) is never used and should be removed
Address.sendValue(address,uint256) (#107-113) is never used and should be removed
BuyBackToken.addLiquidity(uint256,uint256) (#763-776) is never used and should be removed
Context._msgData() (#19-22) is never used and should be removed
SafeMath.mod(uint256,uint256) (#84-86) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#88-91) is never used and should be removed
Remove unused functions.

Additional information: link

Low level call in Address.sendValue(address,uint256) (#107-113):
- (success) = recipient.call{value: amount}() (#111)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#133-150):
- (success,returndata) = target.call{value: weiValue}(data) (#136)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#245) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#246) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#262) is not in mixedCase
Function IUniswapV2Router01.WETH() (#283) is not in mixedCase
Parameter BuyBackToken.calculateTaxFee(uint256)._amount (#887) is not in mixedCase
Parameter BuyBackToken.calculateLiquidityFee(uint256)._amount (#893) is not in mixedCase
Parameter BuyBackToken.setBuybackFee(uint256)._buybackFee (#936) is not in mixedCase
Parameter BuyBackToken.setMarketingFee(uint256)._marketingFee (#945) is not in mixedCase
Parameter BuyBackToken.setNumTokensSellToAddToLiquidity(uint256)._minimumTokensBeforeSwap (#951) is not in mixedCase
Parameter BuyBackToken.setMarketingAddress(address)._marketingAddress (#959) is not in mixedCase
Parameter BuyBackToken.setSwapAndLiquifyEnabled(bool)._enabled (#963) is not in mixedCase
Parameter BuyBackToken.setBuyBackEnabled(bool)._enabled (#968) is not in mixedCase
Parameter BuyBackToken.presale(bool)._presale (#973) is not in mixedCase
Variable BuyBackToken._taxFee (#446) is not in mixedCase
Variable BuyBackToken._maxTxAmount (#460) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Reentrancy in BuyBackToken._transfer(address,address,uint256) (#666-704):
External calls:
- swapTokens(contractTokenBalance) (#684)
- recipient.transfer(amount) (#988)
External calls sending eth:
- swapTokens(contractTokenBalance) (#684)
- recipient.transfer(amount) (#988)
- buyBackTokens(balance.div(100)) (#692)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _liquidityFee = _previousLiquidityFee (#915)
- _liquidityFee = 0 (#908)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _previousLiquidityFee = _liquidityFee (#903)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _previousTaxFee = _taxFee (#902)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _rOwned[address(this)] = _rOwned[address(this)].add(rLiquidity) (#882)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#807)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#798)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#828)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#799)
- _rOwned[sender] = _rOwned[sender].sub(rAmount) (#818)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#819)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#809)
- _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount) (#830)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _rTotal = _rTotal.sub(rFee) (#837)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _tFeeTotal = _tFeeTotal.add(tFee) (#838)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _tOwned[address(this)] = _tOwned[address(this)].add(tLiquidity) (#884)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#817)
- _tOwned[sender] = _tOwned[sender].sub(tAmount) (#827)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#808)
- _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount) (#829)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _taxFee = _previousTaxFee (#914)
- _taxFee = 0 (#907)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- buybackFee = previousBuybackFee (#916)
- buybackFee = 0 (#909)
- buyBackTokens(balance.div(100)) (#692)
- inSwapAndLiquify = true (#493)
- inSwapAndLiquify = false (#495)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- marketingFee = previousMarketingFee (#917)
- marketingFee = 0 (#910)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- previousBuybackFee = buybackFee (#904)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- previousMarketingFee = marketingFee (#905)
Event emitted after the call(s):
- SwapETHForTokens(amount,path) (#760)
- buyBackTokens(balance.div(100)) (#692)
- Transfer(sender,recipient,tTransferAmount) (#802)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- Transfer(sender,recipient,tTransferAmount) (#812)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- Transfer(sender,recipient,tTransferAmount) (#822)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- Transfer(sender,recipient,tTransferAmount) (#833)
- _tokenTransfer(from,to,amount,takeFee) (#703)
Reentrancy in BuyBackToken.transferFrom(address,address,uint256) (#576-580):
External calls:
- _transfer(sender,recipient,amount) (#577)
- recipient.transfer(amount) (#988)
External calls sending eth:
- _transfer(sender,recipient,amount) (#577)
- recipient.transfer(amount) (#988)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#578)
- _allowances[owner][spender] = amount (#662)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#663)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#578)
Apply the check-effects-interactions pattern.

Additional information: link

BuyBackToken.slitherConstructorVariables() (#420-994) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (#426)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#175-178)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#180-184)
getUnlockTime() should be declared external:
- Ownable.getUnlockTime() (#186-188)
getTime() should be declared external:
- Ownable.getTime() (#190-192)
lock(uint256) should be declared external:
- Ownable.lock(uint256) (#194-199)
unlock() should be declared external:
- Ownable.unlock() (#201-206)
name() should be declared external:
- BuyBackToken.name() (#541-543)
symbol() should be declared external:
- BuyBackToken.symbol() (#545-547)
decimals() should be declared external:
- BuyBackToken.decimals() (#549-551)
transfer(address,uint256) should be declared external:
- BuyBackToken.transfer(address,uint256) (#562-565)
allowance(address,address) should be declared external:
- BuyBackToken.allowance(address,address) (#567-569)
approve(address,uint256) should be declared external:
- BuyBackToken.approve(address,uint256) (#571-574)
transferFrom(address,address,uint256) should be declared external:
- BuyBackToken.transferFrom(address,address,uint256) (#576-580)
increaseAllowance(address,uint256) should be declared external:
- BuyBackToken.increaseAllowance(address,uint256) (#582-585)
decreaseAllowance(address,uint256) should be declared external:
- BuyBackToken.decreaseAllowance(address,uint256) (#587-590)
isExcludedFromReward(address) should be declared external:
- BuyBackToken.isExcludedFromReward(address) (#592-594)
totalFees() should be declared external:
- BuyBackToken.totalFees() (#596-598)
minimumTokensBeforeSwapAmount() should be declared external:
- BuyBackToken.minimumTokensBeforeSwapAmount() (#600-602)
buyBackUpperLimitAmount() should be declared external:
- BuyBackToken.buyBackUpperLimitAmount() (#604-606)
deliver(uint256) should be declared external:
- BuyBackToken.deliver(uint256) (#608-615)
reflectionFromToken(uint256,bool) should be declared external:
- BuyBackToken.reflectionFromToken(uint256,bool) (#618-627)
excludeFromReward(address) should be declared external:
- BuyBackToken.excludeFromReward(address) (#635-643)
isExcludedFromFee(address) should be declared external:
- BuyBackToken.isExcludedFromFee(address) (#920-922)
excludeFromFee(address) should be declared external:
- BuyBackToken.excludeFromFee(address) (#924-926)
includeInFee(address) should be declared external:
- BuyBackToken.includeInFee(address) (#928-930)
setBuyBackEnabled(bool) should be declared external:
- BuyBackToken.setBuyBackEnabled(bool) (#968-971)
Use the external attribute for functions never called from the contract.

Additional information: link

BuyBackToken.constructor(string,string,uint8,uint256,uint256,uint256,uint256,address) (#498-539) performs a multiplication on the result of a division:
-_maxTxAmount = _tTotal.div(1000).mul(3) (#520)
BuyBackToken.constructor(string,string,uint8,uint256,uint256,uint256,uint256,address) (#498-539) performs a multiplication on the result of a division:
-minimumTokensBeforeSwap = _tTotal.div(10000).mul(2) (#522)
BuyBackToken.swapTokens(uint256) (#706-717) performs a multiplication on the result of a division:
-transferToAddressETH(dappbuilderAddress,transferredBalance.div(_liquidityFee).mul(dappbuilderFee)) (#714)
BuyBackToken.swapTokens(uint256) (#706-717) performs a multiplication on the result of a division:
-transferToAddressETH(marketingAddress,transferredBalance.div(_liquidityFee).mul(marketingFee.sub(dappbuilderFee))) (#715)
Consider ordering multiplication before division.

Additional information: link

BuyBackToken.setTaxFee(uint256) (#932-934) should emit an event for:
- _taxFee = taxFee (#933)
BuyBackToken.setBuybackFee(uint256) (#936-939) should emit an event for:
- buybackFee = _buybackFee (#937)
- _liquidityFee = buybackFee.add(marketingFee) (#938)
BuyBackToken.setMaxTxAmount(uint256) (#941-943) should emit an event for:
- _maxTxAmount = maxTxAmount (#942)
BuyBackToken.setMarketingFee(uint256) (#945-949) should emit an event for:
- marketingFee = _marketingFee (#947)
- _liquidityFee = buybackFee.add(marketingFee) (#948)
BuyBackToken.setNumTokensSellToAddToLiquidity(uint256) (#951-953) should emit an event for:
- minimumTokensBeforeSwap = _minimumTokensBeforeSwap (#952)
BuyBackToken.setBuybackUpperLimit(uint256) (#955-957) should emit an event for:
- buyBackUpperLimit = buyBackLimit (#956)
Emit an event for critical parameter changes.

Additional information: link

BuyBackToken.constructor(string,string,uint8,uint256,uint256,uint256,uint256,address)._ma (#498) lacks a zero-check on :
- marketingAddress = address(_ma) (#508)
BuyBackToken.setMarketingAddress(address)._marketingAddress (#959) lacks a zero-check on :
- marketingAddress = address(_marketingAddress) (#960)
Check that the address is not zero.

Additional information: link

Reentrancy in BuyBackToken._transfer(address,address,uint256) (#666-704):
External calls:
- swapTokens(contractTokenBalance) (#684)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#735-741)
- buyBackTokens(balance.div(100)) (#692)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
External calls sending eth:
- swapTokens(contractTokenBalance) (#684)
- recipient.transfer(amount) (#988)
- buyBackTokens(balance.div(100)) (#692)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _previousLiquidityFee = _liquidityFee (#903)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _previousTaxFee = _taxFee (#902)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _tFeeTotal = _tFeeTotal.add(tFee) (#838)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- _taxFee = _previousTaxFee (#914)
- _taxFee = 0 (#907)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- buybackFee = previousBuybackFee (#916)
- buybackFee = 0 (#909)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- previousBuybackFee = buybackFee (#904)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- previousMarketingFee = marketingFee (#905)
Reentrancy in BuyBackToken.constructor(string,string,uint8,uint256,uint256,uint256,uint256,address) (#498-539):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#529-530)
State variables written after the call(s):
- _isExcludedFromFee[owner()] = true (#535)
- _isExcludedFromFee[address(this)] = true (#536)
- uniswapV2Router = _uniswapV2Router (#532)
Reentrancy in BuyBackToken.transferFrom(address,address,uint256) (#576-580):
External calls:
- _transfer(sender,recipient,amount) (#577)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#735-741)
External calls sending eth:
- _transfer(sender,recipient,amount) (#577)
- recipient.transfer(amount) (#988)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#578)
- _allowances[owner][spender] = amount (#662)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in BuyBackToken._transfer(address,address,uint256) (#666-704):
External calls:
- swapTokens(contractTokenBalance) (#684)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#735-741)
- buyBackTokens(balance.div(100)) (#692)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
External calls sending eth:
- swapTokens(contractTokenBalance) (#684)
- recipient.transfer(amount) (#988)
- buyBackTokens(balance.div(100)) (#692)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
Event emitted after the call(s):
- SwapETHForTokens(amount,path) (#760)
- buyBackTokens(balance.div(100)) (#692)
- Transfer(sender,recipient,tTransferAmount) (#802)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- Transfer(sender,recipient,tTransferAmount) (#812)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- Transfer(sender,recipient,tTransferAmount) (#822)
- _tokenTransfer(from,to,amount,takeFee) (#703)
- Transfer(sender,recipient,tTransferAmount) (#833)
- _tokenTransfer(from,to,amount,takeFee) (#703)
Reentrancy in BuyBackToken.constructor(string,string,uint8,uint256,uint256,uint256,uint256,address) (#498-539):
External calls:
- uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#529-530)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_tTotal) (#538)
Reentrancy in BuyBackToken.swapETHForTokens(uint256) (#746-761):
External calls:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
Event emitted after the call(s):
- SwapETHForTokens(amount,path) (#760)
Reentrancy in BuyBackToken.swapTokensForEth(uint256) (#726-744):
External calls:
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#735-741)
Event emitted after the call(s):
- SwapTokensForETH(tokenAmount,path) (#743)
Reentrancy in BuyBackToken.transferFrom(address,address,uint256) (#576-580):
External calls:
- _transfer(sender,recipient,amount) (#577)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#735-741)
External calls sending eth:
- _transfer(sender,recipient,amount) (#577)
- recipient.transfer(amount) (#988)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(0,path,deadAddress,block.timestamp.add(300)) (#753-758)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#663)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#578)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#201-206) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is locked until 7 days) (#203)
Avoid relying on block.timestamp.

Additional information: link

Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.

Average 30d PancakeSwap volume 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.

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

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

Token is deployed only at one blockchain

Token has only one trading pair

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 code repository for the project

Token is not listed at Mobula.Finance

Additional information: link

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

Young tokens have high risks of price dump / death