METADOGE Token

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

MetaDoge.swapBack() (#379-417) sends eth to arbitrary user
Dangerous calls:
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in MetaDoge._transferFrom(address,address,uint256) (#283-309):
External calls:
- swapBack() (#298)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#390-396)
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
External calls sending eth:
- swapBack() (#298)
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
State variables written after the call(s):
- _balances[sender] = _balances[sender].sub(amount,Insufficient Balance) (#302)
- _balances[recipient] = _balances[recipient].add(amountReceived) (#305)
- amountReceived = takeFee(sender,recipient,amount) (#304)
- _balances[address(this)] = _balances[address(this)].add(newFeeAmount) (#358)
- _balances[address(this)] = _balances[address(this)].add(feeAmount) (#364)
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.

Contract ownership is not renounced (belongs to a wallet)

MetaDoge.slitherConstructorVariables() (#183-499) performs a multiplication on the result of a division:
-swapThreshold = _totalSupply / 1000 * 1 (#227)
Consider ordering multiplication before division.

Additional information: link

MetaDoge.swapBack() (#379-417) ignores return value by router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
Ensure that all the return values of the function calls are used.

Additional information: link

MetaDoge.updateTimeF(uint256) (#345-348) should emit an event for:
- timeF = _int (#347)
MetaDoge.setTxLimit(uint256) (#442-445) should emit an event for:
- _maxTxAmount = amount (#444)
MetaDoge.setFees(uint256,uint256,uint256,uint256) (#456-462) should emit an event for:
- liquidityFee = _liquidityFee (#457)
- marketingFee = _marketingFee (#458)
- burnFee = _burnFee (#459)
- totalFee = _liquidityFee.add(_marketingFee) (#460)
- feeDenominator = _feeDenominator (#461)
Emit an event for critical parameter changes.

Additional information: link

Auth.transferOwnership(address).adr (#122) lacks a zero-check on :
- owner = adr (#123)
MetaDoge.setFeeReceiver(address)._marketingFeeReceiver (#464) lacks a zero-check on :
- marketingFeeReceiver = _marketingFeeReceiver (#465)
Check that the address is not zero.

Additional information: link

Reentrancy in MetaDoge._transferFrom(address,address,uint256) (#283-309):
External calls:
- swapBack() (#298)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#390-396)
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
External calls sending eth:
- swapBack() (#298)
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
State variables written after the call(s):
- launch() (#300)
- launchedAt = block.number (#435)
Reentrancy in MetaDoge.constructor() (#231-249):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#233)
State variables written after the call(s):
- _allowances[address(this)][address(router)] = type()(uint256).max (#234)
- _balances[_owner] = _liqSupply (#243)
- _balances[_DEAD] = _burntSupply (#244)
- _balances[ethBridgeAndExchange] = _ethBridgeAndExchangeSupply (#245)
- isFeeExempt[_owner] = true (#238)
- isFeeExempt[ethBridgeAndExchange] = true (#240)
- isTxLimitExempt[_owner] = true (#239)
- isTxLimitExempt[ethBridgeAndExchange] = true (#241)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in MetaDoge._transferFrom(address,address,uint256) (#283-309):
External calls:
- swapBack() (#298)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#390-396)
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
External calls sending eth:
- swapBack() (#298)
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
Event emitted after the call(s):
- Transfer(sender,DEAD,burnAmount) (#356)
- amountReceived = takeFee(sender,recipient,amount) (#304)
- Transfer(sender,address(this),newFeeAmount) (#360)
- amountReceived = takeFee(sender,recipient,amount) (#304)
- Transfer(sender,address(this),feeAmount) (#365)
- amountReceived = takeFee(sender,recipient,amount) (#304)
- Transfer(sender,recipient,amountReceived) (#307)
Reentrancy in MetaDoge.constructor() (#231-249):
External calls:
- pair = IDEXFactory(router.factory()).createPair(WBNB,address(this)) (#233)
Event emitted after the call(s):
- Transfer(address(0),_owner,_liqSupply) (#246)
- Transfer(address(0),_DEAD,_burntSupply) (#247)
- Transfer(address(0),ethBridgeAndExchange,_ethBridgeAndExchangeSupply) (#248)
Reentrancy in MetaDoge.swapBack() (#379-417):
External calls:
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(amountToSwap,0,path,address(this),block.timestamp) (#390-396)
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
External calls sending eth:
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
- router.addLiquidityETH{value: amountBNBLiquidity}(address(this),amountToLiquify,0,0,marketingFeeReceiver,block.timestamp) (#407-414)
Event emitted after the call(s):
- AutoLiquify(amountBNBLiquidity,amountToLiquify) (#415)
Apply the check-effects-interactions pattern.

Additional information: link

MetaDoge.AntiDumpMultiplier() (#332-337) uses timestamp for comparisons
Dangerous comparisons:
- time_since_start > 1 * hour (#335)
MetaDoge.AntSni() (#339-343) uses timestamp for comparisons
Dangerous comparisons:
- time_since_start < timeF (#341)
Avoid relying on block.timestamp.

Additional information: link

MetaDoge._burntSupply (#195) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 40) / 100
MetaDoge._liqSupply (#196) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 50) / 100
MetaDoge._ethBridgeAndExchangeSupply (#197) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 10) / 100
MetaDoge._maxTxAmount (#199) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 5) / 1000
MetaDoge._maxWalletSize (#200) is set pre-construction with a non-constant function or state variable:
- (_totalSupply * 10) / 1000
MetaDoge.swapThreshold (#227) is set pre-construction with a non-constant function or state variable:
- _totalSupply / 1000 * 1
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 MetaDoge.swapBack() (#379-417):
- (MarketingSuccess) = address(marketingFeeReceiver).call{gas: 30000,value: amountBNBMarketing}() (#403)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Function IDEXRouter.WETH() (#137) is not in mixedCase
Function MetaDoge.AntiDumpMultiplier() (#332-337) is not in mixedCase
Function MetaDoge.AntSni() (#339-343) is not in mixedCase
Parameter MetaDoge.updateTimeF(uint256)._int (#345) is not in mixedCase
Parameter MetaDoge.setFees(uint256,uint256,uint256,uint256)._liquidityFee (#456) is not in mixedCase
Parameter MetaDoge.setFees(uint256,uint256,uint256,uint256)._marketingFee (#456) is not in mixedCase
Parameter MetaDoge.setFees(uint256,uint256,uint256,uint256)._burnFee (#456) is not in mixedCase
Parameter MetaDoge.setFees(uint256,uint256,uint256,uint256)._feeDenominator (#456) is not in mixedCase
Parameter MetaDoge.setFeeReceiver(address)._marketingFeeReceiver (#464) is not in mixedCase
Parameter MetaDoge.setSwapBackSettings(bool,uint256)._enabled (#468) is not in mixedCase
Parameter MetaDoge.setSwapBackSettings(bool,uint256)._amount (#468) is not in mixedCase
Parameter MetaDoge.transferForeignToken(address)._token (#478) is not in mixedCase
Variable MetaDoge.WBNB (#186) is not in mixedCase
Variable MetaDoge.DEAD (#187) is not in mixedCase
Variable MetaDoge.ZERO (#188) is not in mixedCase
Constant MetaDoge._name (#190) is not in UPPER_CASE_WITH_UNDERSCORES
Constant MetaDoge._symbol (#191) is not in UPPER_CASE_WITH_UNDERSCORES
Constant MetaDoge._decimals (#192) is not in UPPER_CASE_WITH_UNDERSCORES
Variable MetaDoge._totalSupply (#194) is not in mixedCase
Variable MetaDoge._burntSupply (#195) is not in mixedCase
Variable MetaDoge._liqSupply (#196) is not in mixedCase
Variable MetaDoge._ethBridgeAndExchangeSupply (#197) is not in mixedCase
Variable MetaDoge._maxTxAmount (#199) is not in mixedCase
Variable MetaDoge._maxWalletSize (#200) is not in mixedCase
Variable MetaDoge._balances (#202) is not in mixedCase
Variable MetaDoge._allowances (#203) is not in mixedCase
Variable MetaDoge._isBlacklisted (#215) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Variable IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#142) is too similar to IDEXRouter.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#143)
Prevent variables from having similar names.

Additional information: link

MetaDoge.slitherConstructorVariables() (#183-499) uses literals with too many digits:
- DEAD = 0x000000000000000000000000000000000000dEaD (#187)
MetaDoge.slitherConstructorVariables() (#183-499) uses literals with too many digits:
- ZERO = 0x0000000000000000000000000000000000000000 (#188)
MetaDoge.slitherConstructorVariables() (#183-499) uses literals with too many digits:
- _totalSupply = 100000000000 * (10 ** _decimals) (#194)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

MetaDoge.DEAD (#187) should be constant
MetaDoge.WBNB (#186) should be constant
MetaDoge.ZERO (#188) should be constant
MetaDoge._totalSupply (#194) should be constant
MetaDoge.ethBridgeAndExchange (#218) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

authorize(address) should be declared external:
- Auth.authorize(address) (#94-96)
unauthorize(address) should be declared external:
- Auth.unauthorize(address) (#101-103)
transferOwnership(address) should be declared external:
- Auth.transferOwnership(address) (#122-126)
updateTimeF(uint256) should be declared external:
- MetaDoge.updateTimeF(uint256) (#345-348)
transferForeignToken(address) should be declared external:
- MetaDoge.transferForeignToken(address) (#478-482)
isOverLiquified(uint256,uint256) should be declared external:
- MetaDoge.isOverLiquified(uint256,uint256) (#492-494)
Use the external attribute for functions never called from the contract.

Additional information: link

Attempt to swap token was unsuccessful. For some reason it is untradeable. If token is not in presale stage and is not traded outside PancakeSwap, then it's a scam

Additional information: link

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.

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.

Token is deployed only at one blockchain

Unable to find token contract audit

Unable to find audit link on the website

Token is not listed at Mobula.Finance

Additional information: link

Token is marked as scam (rug pull, honeypot, phishing, etc.)

Additional information: link

Token has a considerable age, but average PancakeSwap 30d trading volume is low

Young tokens have high risks of price dump / death

Token has relatively low CoinGecko rank

Young tokens have high risks of price dump / death

Token has relatively low CoinMarketCap rank