MTNFT [METAMOONNFT] Token

METAMOONNFT.addLiquidity(uint256,uint256) (#749-762) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in METAMOONNFT._transfer(address,address,uint256) (#658-696):
External calls:
- swapAndLiquify(contractTokenBalance) (#680)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#738-744)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#680)
- recipient.transfer(amount) (#622)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#683)
- _balances[recipient] = _balances[recipient].add(finalAmount) (#691)
- finalAmount = takeFee(sender,recipient,amount) (#685-686)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#776)
Apply the check-effects-interactions pattern.

Additional information: link

Contract ownership is not renounced (belongs to a wallet)

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.

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

METAMOONNFT._totalSupply (#422) is set pre-construction with a non-constant function or state variable:
- 100000000000 * 10 ** _decimals
METAMOONNFT._maxTxAmount (#423) is set pre-construction with a non-constant function or state variable:
- 10000000000 * 10 ** _decimals
METAMOONNFT._walletMax (#424) is set pre-construction with a non-constant function or state variable:
- 2000000000 * 10 ** _decimals
METAMOONNFT.minimumTokensBeforeSwap (#425) is set pre-construction with a non-constant function or state variable:
- 100 * 10 ** _decimals
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.sendValue(address,uint256) (#101-107):
- (success) = recipient.call{value: amount}() (#105)
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#126-143):
- (success,returndata) = target.call{value: weiValue}(data) (#129)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Redundant expression "this (#18)" inContext (#11-21)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Reentrancy in METAMOONNFT._transfer(address,address,uint256) (#658-696):
External calls:
- swapAndLiquify(contractTokenBalance) (#680)
- recipient.transfer(amount) (#622)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#680)
- recipient.transfer(amount) (#622)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#683)
- _balances[recipient] = _balances[recipient].add(finalAmount) (#691)
- finalAmount = takeFee(sender,recipient,amount) (#685-686)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#776)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#777)
- finalAmount = takeFee(sender,recipient,amount) (#685-686)
- Transfer(sender,recipient,finalAmount) (#693)
Reentrancy in METAMOONNFT.swapAndLiquify(uint256) (#705-727):
External calls:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#720)
- recipient.transfer(amount) (#622)
- transferToAddressETH(teamWalletAddress,amountBNBTeam) (#723)
- recipient.transfer(amount) (#622)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#720)
- recipient.transfer(amount) (#622)
- transferToAddressETH(teamWalletAddress,amountBNBTeam) (#723)
- recipient.transfer(amount) (#622)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
State variables written after the call(s):
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
- _allowances[owner][spender] = amount (#538)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#539)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
Reentrancy in METAMOONNFT.transferFrom(address,address,uint256) (#652-656):
External calls:
- _transfer(sender,recipient,amount) (#653)
- recipient.transfer(amount) (#622)
External calls sending eth:
- _transfer(sender,recipient,amount) (#653)
- recipient.transfer(amount) (#622)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#654)
- _allowances[owner][spender] = amount (#538)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#539)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#654)
Apply the check-effects-interactions pattern.

Additional information: link

METAMOONNFT._decimals (#392) should be constant
METAMOONNFT._name (#390) should be constant
METAMOONNFT._symbol (#391) should be constant
Ownable._lockTime (#149) should be constant
Ownable.asdasd (#148) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Ownable.waiveOwnership() (#168-171) uses literals with too many digits:
- OwnershipTransferred(_owner,address(0x000000000000000000000000000000000000dEaD)) (#169)
METAMOONNFT.slitherConstructorVariables() (#385-784) uses literals with too many digits:
- deadAddress = 0x000000000000000000000000000000000000dEaD (#396)
METAMOONNFT.slitherConstructorVariables() (#385-784) uses literals with too many digits:
- _totalSupply = 100000000000 * 10 ** _decimals (#422)
METAMOONNFT.slitherConstructorVariables() (#385-784) uses literals with too many digits:
- _maxTxAmount = 10000000000 * 10 ** _decimals (#423)
METAMOONNFT.slitherConstructorVariables() (#385-784) uses literals with too many digits:
- _walletMax = 2000000000 * 10 ** _decimals (#424)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

Ownable.asdasd (#148) is never used in METAMOONNFT (#385-784)
Ownable._lockTime (#149) is never used in METAMOONNFT (#385-784)
Remove unused state variables.

Additional information: link

METAMOONNFT.addLiquidity(uint256,uint256) (#749-762) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
Ensure that all the return values of the function calls are used.

Additional information: link

METAMOONNFT.allowance(address,address).owner (#511) shadows:
- Ownable.owner() (#159-161) (function)
METAMOONNFT._approve(address,address,uint256).owner (#534) shadows:
- Ownable.owner() (#159-161) (function)
Rename the local variables that shadow another component.

Additional information: link

METAMOONNFT.setBuyTaxes(uint256,uint256,uint256) (#555-561) should emit an event for:
- _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(_buyTeamFee) (#560)
METAMOONNFT.setSelTaxes(uint256,uint256,uint256) (#563-569) should emit an event for:
- _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(_sellTeamFee) (#568)
METAMOONNFT.setDistributionSettings(uint256,uint256,uint256) (#571-577) should emit an event for:
- _liquidityShare = newLiquidityShare (#572)
- _teamShare = newTeamShare (#574)
- _totalDistributionShares = _liquidityShare.add(_marketingShare).add(_teamShare) (#576)
METAMOONNFT.setMaxTxAmount(uint256) (#579-581) should emit an event for:
- _maxTxAmount = maxTxAmount (#580)
METAMOONNFT.setWalletLimit(uint256) (#592-594) should emit an event for:
- _walletMax = newLimit (#593)
METAMOONNFT.setNumTokensBeforeSwap(uint256) (#596-598) should emit an event for:
- minimumTokensBeforeSwap = newLimit (#597)
Emit an event for critical parameter changes.

Additional information: link

METAMOONNFT.setMarketingWalletAddress(address).newAddress (#600) lacks a zero-check on :
- marketingWalletAddress = address(newAddress) (#601)
METAMOONNFT.setTeamWalletAddress(address).newAddress (#604) lacks a zero-check on :
- teamWalletAddress = address(newAddress) (#605)
Check that the address is not zero.

Additional information: link

Reentrancy in METAMOONNFT.changeRouterVersion(address) (#625-642):
External calls:
- newPairAddress = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#633-634)
State variables written after the call(s):
- isMarketPair[address(uniswapPair)] = true (#641)
- isWalletLimitExempt[address(uniswapPair)] = true (#640)
- uniswapPair = newPairAddress (#637)
- uniswapV2Router = _uniswapV2Router (#638)
Reentrancy in METAMOONNFT.constructor() (#458-489):
External calls:
- uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#463-464)
State variables written after the call(s):
- _allowances[address(this)][address(uniswapV2Router)] = _totalSupply (#467)
- _balances[_msgSender()] = _totalSupply (#487)
- _totalDistributionShares = _liquidityShare.add(_marketingShare).add(_teamShare) (#476)
- _totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee).add(_buyTeamFee) (#474)
- _totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee).add(_sellTeamFee) (#475)
- isExcludedFromFee[owner()] = true (#469)
- isExcludedFromFee[address(this)] = true (#470)
- isMarketPair[address(uniswapPair)] = true (#485)
- isTxLimitExempt[owner()] = true (#482)
- isTxLimitExempt[address(this)] = true (#483)
- isWalletLimitExempt[owner()] = true (#478)
- isWalletLimitExempt[address(uniswapPair)] = true (#479)
- isWalletLimitExempt[address(this)] = true (#480)
- uniswapV2Router = _uniswapV2Router (#466)
Reentrancy in METAMOONNFT.swapAndLiquify(uint256) (#705-727):
External calls:
- swapTokensForEth(tokensForSwap) (#710)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#738-744)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#720)
- recipient.transfer(amount) (#622)
- transferToAddressETH(teamWalletAddress,amountBNBTeam) (#723)
- recipient.transfer(amount) (#622)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
State variables written after the call(s):
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
- _allowances[owner][spender] = amount (#538)
Reentrancy in METAMOONNFT.transferFrom(address,address,uint256) (#652-656):
External calls:
- _transfer(sender,recipient,amount) (#653)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#738-744)
External calls sending eth:
- _transfer(sender,recipient,amount) (#653)
- recipient.transfer(amount) (#622)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#654)
- _allowances[owner][spender] = amount (#538)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in METAMOONNFT._transfer(address,address,uint256) (#658-696):
External calls:
- swapAndLiquify(contractTokenBalance) (#680)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#738-744)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#680)
- recipient.transfer(amount) (#622)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
Event emitted after the call(s):
- Transfer(sender,address(this),feeAmount) (#777)
- finalAmount = takeFee(sender,recipient,amount) (#685-686)
- Transfer(sender,recipient,finalAmount) (#693)
Reentrancy in METAMOONNFT.constructor() (#458-489):
External calls:
- uniswapPair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#463-464)
Event emitted after the call(s):
- Transfer(address(0),_msgSender(),_totalSupply) (#488)
Reentrancy in METAMOONNFT.swapAndLiquify(uint256) (#705-727):
External calls:
- swapTokensForEth(tokensForSwap) (#710)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#738-744)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
External calls sending eth:
- transferToAddressETH(marketingWalletAddress,amountBNBMarketing) (#720)
- recipient.transfer(amount) (#622)
- transferToAddressETH(teamWalletAddress,amountBNBTeam) (#723)
- recipient.transfer(amount) (#622)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#539)
- addLiquidity(tokensForLP,amountBNBLiquidity) (#726)
Reentrancy in METAMOONNFT.swapTokensForEth(uint256) (#729-747):
External calls:
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#738-744)
Event emitted after the call(s):
- SwapTokensForETH(tokenAmount,path) (#746)
Reentrancy in METAMOONNFT.transferFrom(address,address,uint256) (#652-656):
External calls:
- _transfer(sender,recipient,amount) (#653)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#738-744)
External calls sending eth:
- _transfer(sender,recipient,amount) (#653)
- recipient.transfer(amount) (#622)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#754-761)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#539)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()].sub(amount,ERC20: transfer amount exceeds allowance)) (#654)
Apply the check-effects-interactions pattern.

Additional information: link

Address.isContract(address) (#90-99) uses assembly
- INLINE ASM (#97)
Address._functionCallWithValue(address,bytes,uint256,string) (#126-143) uses assembly
- INLINE ASM (#135-138)
Do not use evm assembly.

Additional information: link

Address._functionCallWithValue(address,bytes,uint256,string) (#126-143) is never used and should be removed
Address.functionCall(address,bytes) (#109-111) is never used and should be removed
Address.functionCall(address,bytes,string) (#113-115) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#117-119) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#121-124) is never used and should be removed
Address.isContract(address) (#90-99) is never used and should be removed
Address.sendValue(address,uint256) (#101-107) is never used and should be removed
Context._msgData() (#17-20) is never used and should be removed
SafeMath.mod(uint256,uint256) (#78-80) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#82-85) is never used and should be removed
Remove unused functions.

Additional information: link

Function IUniswapV2Pair.DOMAIN_SEPARATOR() (#216) is not in mixedCase
Function IUniswapV2Pair.PERMIT_TYPEHASH() (#217) is not in mixedCase
Function IUniswapV2Pair.MINIMUM_LIQUIDITY() (#233) is not in mixedCase
Function IUniswapV2Router01.WETH() (#252) is not in mixedCase
Function METAMOONNFT._isExcludedFromFee(address) (#551-553) is not in mixedCase
Parameter METAMOONNFT.setSwapAndLiquifyEnabled(bool)._enabled (#608) is not in mixedCase
Variable METAMOONNFT._balances (#398) is not in mixedCase
Variable METAMOONNFT._buyLiquidityFee (#406) is not in mixedCase
Variable METAMOONNFT._buyMarketingFee (#407) is not in mixedCase
Variable METAMOONNFT._buyTeamFee (#408) is not in mixedCase
Variable METAMOONNFT._sellLiquidityFee (#410) is not in mixedCase
Variable METAMOONNFT._sellMarketingFee (#411) is not in mixedCase
Variable METAMOONNFT._sellTeamFee (#412) is not in mixedCase
Variable METAMOONNFT._liquidityShare (#414) is not in mixedCase
Variable METAMOONNFT._marketingShare (#415) is not in mixedCase
Variable METAMOONNFT._teamShare (#416) is not in mixedCase
Variable METAMOONNFT._totalTaxIfBuying (#418) is not in mixedCase
Variable METAMOONNFT._totalTaxIfSelling (#419) is not in mixedCase
Variable METAMOONNFT._totalDistributionShares (#420) is not in mixedCase
Variable METAMOONNFT._maxTxAmount (#423) is not in mixedCase
Variable METAMOONNFT._walletMax (#424) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#257) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#258)
Prevent variables from having similar names.

Additional information: link

waiveOwnership() should be declared external:
- Ownable.waiveOwnership() (#168-171)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#173-177)
getTime() should be declared external:
- Ownable.getTime() (#179-181)
name() should be declared external:
- METAMOONNFT.name() (#491-493)
symbol() should be declared external:
- METAMOONNFT.symbol() (#495-497)
decimals() should be declared external:
- METAMOONNFT.decimals() (#499-501)
totalSupply() should be declared external:
- METAMOONNFT.totalSupply() (#503-505)
allowance(address,address) should be declared external:
- METAMOONNFT.allowance(address,address) (#511-513)
increaseAllowance(address,uint256) should be declared external:
- METAMOONNFT.increaseAllowance(address,uint256) (#515-518)
decreaseAllowance(address,uint256) should be declared external:
- METAMOONNFT.decreaseAllowance(address,uint256) (#520-523)
minimumTokensBeforeSwapAmount() should be declared external:
- METAMOONNFT.minimumTokensBeforeSwapAmount() (#525-527)
approve(address,uint256) should be declared external:
- METAMOONNFT.approve(address,uint256) (#529-532)
setMarketPairStatus(address,bool) should be declared external:
- METAMOONNFT.setMarketPairStatus(address,bool) (#542-544)
_isExcludedFromFee(address) should be declared external:
- METAMOONNFT._isExcludedFromFee(address) (#551-553)
setSwapAndLiquifyEnabled(bool) should be declared external:
- METAMOONNFT.setSwapAndLiquifyEnabled(bool) (#608-611)
setSwapAndLiquifyByLimitOnly(bool) should be declared external:
- METAMOONNFT.setSwapAndLiquifyByLimitOnly(bool) (#613-615)
getCirculatingSupply() should be declared external:
- METAMOONNFT.getCirculatingSupply() (#617-619)
changeRouterVersion(address) should be declared external:
- METAMOONNFT.changeRouterVersion(address) (#625-642)
transfer(address,uint256) should be declared external:
- METAMOONNFT.transfer(address,uint256) (#647-650)
transferFrom(address,address,uint256) should be declared external:
- METAMOONNFT.transferFrom(address,address,uint256) (#652-656)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract has 0% buy tax and 16% sell tax.
Taxes are suspiciously high (over 10%) and contract ownership is not renounced. Token has a high risk of becoming a honeypot.

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

Token is deployed only at one blockchain

Token has only one trading pair

Unable to find token on CoinGecko

Additional information: link

Token was delisted (assigned to inactive / untracked listing) from CoinMarketCap

Additional information: link

Unable to find audit link on the website

Unable to find token on CoinHunt

Additional information: link

Token is not listed at Mobula.Finance

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Young tokens have high risks of scam / 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