Cavalier Inu is a dog-based meme token (Cavalier King Charles Spaniel Dog) on Binance Smart Chain with low tax and instant rewards for holders.
https://cavalierinu.space/
🇨🇳 https://t.me/cavalierinucn
Launched by https://t.me/leonidaslaunch
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
CavalierInu.addLiquidity(uint256,uint256) (#576-589) sends eth to arbitrary user
Dangerous calls:
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in CavalierInu._transfer(address,address,uint256) (#472-519):
External calls:
- swapAndLiquify(swapTokensAtAmount,sellTaxes) (#510)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- address(marketingWallet).sendValue(marketingAmt) (#568)
- address(donationWallet).sendValue(donationAmt) (#572)
- swapAndLiquify(swapTokensAtAmount,taxes) (#511)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- address(marketingWallet).sendValue(marketingAmt) (#568)
- address(donationWallet).sendValue(donationAmt) (#572)
External calls sending eth:
- swapAndLiquify(swapTokensAtAmount,sellTaxes) (#510)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- swapAndLiquify(swapTokensAtAmount,taxes) (#511)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee,isSell) (#518)
- _rOwned[address(this)] += rLiquidity (#373)
- _rOwned[address(this)] += rDonation (#393)
- _rOwned[address(this)] += rMarketing (#383)
- _rOwned[sender] = _rOwned[sender] - s.rAmount (#534)
- _rOwned[recipient] = _rOwned[recipient] + s.rTransferAmount (#535)
- _tokenTransfer(from,to,amount,takeFee,isSell) (#518)
- _rTotal -= rRfi (#362)
- _tokenTransfer(from,to,amount,takeFee,isSell) (#518)
- _tOwned[address(this)] += tMarketing (#381)
- _tOwned[address(this)] += tLiquidity (#371)
- _tOwned[address(this)] += tDonation (#391)
- _tOwned[sender] = _tOwned[sender] - tAmount (#528)
- _tOwned[recipient] = _tOwned[recipient] + s.tTransferAmount (#531)
Apply the check-effects-interactions pattern.
Additional information: link
CavalierInu.rescueAnyBEP20Tokens(address,address,uint256) (#680-682) ignores return value by IERC20(_tokenAddr).transfer(_to,_amount) (#681)
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.
CavalierInu.swapAndLiquify(uint256,CavalierInu.Taxes) (#548-574) performs a multiplication on the result of a division:
-unitBalance = deltaBalance / (denominator - temp.liquidity) (#558)
-bnbToAddLiquidityWith = unitBalance * temp.liquidity (#559)
CavalierInu.swapAndLiquify(uint256,CavalierInu.Taxes) (#548-574) performs a multiplication on the result of a division:
-unitBalance = deltaBalance / (denominator - temp.liquidity) (#558)
-marketingAmt = unitBalance * 2 * temp.marketing (#566)
CavalierInu.swapAndLiquify(uint256,CavalierInu.Taxes) (#548-574) performs a multiplication on the result of a division:
-unitBalance = deltaBalance / (denominator - temp.liquidity) (#558)
-donationAmt = unitBalance * 2 * temp.donation (#570)
Consider ordering multiplication before division.
Additional information: link
CavalierInu.addLiquidity(uint256,uint256) (#576-589) ignores return value by router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
Ensure that all the return values of the function calls are used.
Additional information: link
CavalierInu.allowance(address,address).owner (#252) shadows:
- Ownable.owner() (#53-55) (function)
CavalierInu._approve(address,address,uint256).owner (#465) shadows:
- Ownable.owner() (#53-55) (function)
Rename the local variables that shadow another component.
Additional information: link
CavalierInu.updateCooldown(bool,uint256) (#631-634) should emit an event for:
- coolDownTime = time * 1 (#632)
CavalierInu.updateSwapTokensAtAmount(uint256) (#636-638) should emit an event for:
- swapTokensAtAmount = amount * 10 ** _decimals (#637)
CavalierInu.updateMaxTxLimit(uint256,uint256) (#659-662) should emit an event for:
- maxBuyLimit = maxBuy * 10 ** decimals() (#660)
- maxSellLimit = maxSell * 10 ** decimals() (#661)
CavalierInu.updateMaxWalletlimit(uint256) (#664-666) should emit an event for:
- maxWalletLimit = amount * 10 ** decimals() (#665)
Emit an event for critical parameter changes.
Additional information: link
CavalierInu.constructor(address)._pair (#208-209) lacks a zero-check on :
- pair = _pair (#212)
CavalierInu.updateMarketingWallet(address).newWallet (#622) lacks a zero-check on :
- marketingWallet = newWallet (#623)
CavalierInu.updateDonationWallet(address).newWallet (#626) lacks a zero-check on :
- donationWallet = newWallet (#627)
CavalierInu.updateRouterAndPair(address,address).newPair (#668) lacks a zero-check on :
- pair = newPair (#670)
Check that the address is not zero.
Additional information: link
Reentrancy in CavalierInu._transfer(address,address,uint256) (#472-519):
External calls:
- swapAndLiquify(swapTokensAtAmount,sellTaxes) (#510)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- address(marketingWallet).sendValue(marketingAmt) (#568)
- address(donationWallet).sendValue(donationAmt) (#572)
- swapAndLiquify(swapTokensAtAmount,taxes) (#511)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- address(marketingWallet).sendValue(marketingAmt) (#568)
- address(donationWallet).sendValue(donationAmt) (#572)
External calls sending eth:
- swapAndLiquify(swapTokensAtAmount,sellTaxes) (#510)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- swapAndLiquify(swapTokensAtAmount,taxes) (#511)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee,isSell) (#518)
- totFeesPaid.marketing += tMarketing (#377)
- totFeesPaid.donation += tDonation (#387)
- totFeesPaid.liquidity += tLiquidity (#367)
- totFeesPaid.rfi += tRfi (#363)
Reentrancy in CavalierInu.constructor(address) (#206-229):
External calls:
- _pair = IFactory(_router.factory()).createPair(address(this),_router.WETH()) (#208-209)
State variables written after the call(s):
- excludeFromReward(pair) (#214)
- _excluded.push(account) (#323)
- excludeFromReward(pair) (#214)
- _isExcluded[account] = true (#322)
- _isExcludedFromFee[address(this)] = true (#217)
- _isExcludedFromFee[owner()] = true (#218)
- _isExcludedFromFee[marketingWallet] = true (#219)
- _isExcludedFromFee[donationWallet] = true (#220)
- _rOwned[owner()] = _rTotal (#216)
- excludeFromReward(pair) (#214)
- _tOwned[account] = tokenFromReflection(_rOwned[account]) (#320)
- allowedTransfer[address(this)] = true (#222)
- allowedTransfer[owner()] = true (#223)
- allowedTransfer[pair] = true (#224)
- allowedTransfer[marketingWallet] = true (#225)
- allowedTransfer[donationWallet] = true (#226)
- pair = _pair (#212)
- router = _router (#211)
Reentrancy in CavalierInu.swapAndLiquify(uint256,CavalierInu.Taxes) (#548-574):
External calls:
- swapTokensForBNB(toSwap) (#555)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- addLiquidity(tokensToAddLiquidityWith,bnbToAddLiquidityWith) (#563)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
External calls sending eth:
- addLiquidity(tokensToAddLiquidityWith,bnbToAddLiquidityWith) (#563)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
State variables written after the call(s):
- addLiquidity(tokensToAddLiquidityWith,bnbToAddLiquidityWith) (#563)
- _allowances[owner][spender] = amount (#468)
Reentrancy in CavalierInu.transferFrom(address,address,uint256) (#261-269):
External calls:
- _transfer(sender,recipient,amount) (#262)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- address(marketingWallet).sendValue(marketingAmt) (#568)
- address(donationWallet).sendValue(donationAmt) (#572)
External calls sending eth:
- _transfer(sender,recipient,amount) (#262)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
State variables written after the call(s):
- _approve(sender,_msgSender(),currentAllowance - amount) (#266)
- _allowances[owner][spender] = amount (#468)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in CavalierInu._transfer(address,address,uint256) (#472-519):
External calls:
- swapAndLiquify(swapTokensAtAmount,sellTaxes) (#510)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- address(marketingWallet).sendValue(marketingAmt) (#568)
- address(donationWallet).sendValue(donationAmt) (#572)
- swapAndLiquify(swapTokensAtAmount,taxes) (#511)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- address(marketingWallet).sendValue(marketingAmt) (#568)
- address(donationWallet).sendValue(donationAmt) (#572)
External calls sending eth:
- swapAndLiquify(swapTokensAtAmount,sellTaxes) (#510)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- swapAndLiquify(swapTokensAtAmount,taxes) (#511)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
Event emitted after the call(s):
- Transfer(sender,address(this),s.tLiquidity + s.tMarketing + s.tDonation) (#540)
- _tokenTransfer(from,to,amount,takeFee,isSell) (#518)
- Transfer(sender,recipient,s.tTransferAmount) (#544)
- _tokenTransfer(from,to,amount,takeFee,isSell) (#518)
Reentrancy in CavalierInu.constructor(address) (#206-229):
External calls:
- _pair = IFactory(_router.factory()).createPair(address(this),_router.WETH()) (#208-209)
Event emitted after the call(s):
- Transfer(address(0),owner(),_tTotal) (#228)
Reentrancy in CavalierInu.swapAndLiquify(uint256,CavalierInu.Taxes) (#548-574):
External calls:
- swapTokensForBNB(toSwap) (#555)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- addLiquidity(tokensToAddLiquidityWith,bnbToAddLiquidityWith) (#563)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
External calls sending eth:
- addLiquidity(tokensToAddLiquidityWith,bnbToAddLiquidityWith) (#563)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#469)
- addLiquidity(tokensToAddLiquidityWith,bnbToAddLiquidityWith) (#563)
Reentrancy in CavalierInu.transferFrom(address,address,uint256) (#261-269):
External calls:
- _transfer(sender,recipient,amount) (#262)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
- router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#600-606)
- address(marketingWallet).sendValue(marketingAmt) (#568)
- address(donationWallet).sendValue(donationAmt) (#572)
External calls sending eth:
- _transfer(sender,recipient,amount) (#262)
- router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#581-588)
- (success) = recipient.call{value: amount}() (#106)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#469)
- _approve(sender,_msgSender(),currentAllowance - amount) (#266)
Apply the check-effects-interactions pattern.
Additional information: link
CavalierInu._transfer(address,address,uint256) (#472-519) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(timePassed >= coolDownTime,Cooldown enabled) (#499)
Avoid relying on block.timestamp.
Additional information: link
CavalierInu.setTradingStatus(bool) (#305-309) compares to a boolean constant:
-state == true && genesis_block == 0 (#308)
Remove the equality to the boolean constant.
Additional information: link
CavalierInu.includeInReward(address) (#326-337) has costly operations inside a loop:
- _excluded.pop() (#333)
CavalierInu._reflectRfi(uint256,uint256) (#361-364) has costly operations inside a loop:
- _rTotal -= rRfi (#362)
Use a local variable to hold the loop computation result.
Additional information: link
Context._msgData() (#38-41) is never used and should be removed
Remove unused functions.
Additional information: link
CavalierInu._tTotal (#148) is set pre-construction with a non-constant function or state variable:
- initialsupply * 10 ** _decimals
CavalierInu._rTotal (#149) 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
Low level call in Address.sendValue(address,uint256) (#103-108):
- (success) = recipient.call{value: amount}() (#106)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Function IRouter.WETH() (#84) is not in mixedCase
Struct CavalierInu.valuesFromGetValues (#183-195) is not in CapWords
Parameter CavalierInu.setTaxes(uint256,uint256,uint256,uint256)._rfi (#351) is not in mixedCase
Parameter CavalierInu.setTaxes(uint256,uint256,uint256,uint256)._marketing (#351) is not in mixedCase
Parameter CavalierInu.setTaxes(uint256,uint256,uint256,uint256)._liquidity (#351) is not in mixedCase
Parameter CavalierInu.setTaxes(uint256,uint256,uint256,uint256)._donation (#351) is not in mixedCase
Parameter CavalierInu.setSellTaxes(uint256,uint256,uint256,uint256)._rfi (#356) is not in mixedCase
Parameter CavalierInu.setSellTaxes(uint256,uint256,uint256,uint256)._marketing (#356) is not in mixedCase
Parameter CavalierInu.setSellTaxes(uint256,uint256,uint256,uint256)._liquidity (#356) is not in mixedCase
Parameter CavalierInu.setSellTaxes(uint256,uint256,uint256,uint256)._donation (#356) is not in mixedCase
Parameter CavalierInu.updateSwapEnabled(bool)._enabled (#640) is not in mixedCase
Parameter CavalierInu.rescueAnyBEP20Tokens(address,address,uint256)._tokenAddr (#680) is not in mixedCase
Parameter CavalierInu.rescueAnyBEP20Tokens(address,address,uint256)._to (#680) is not in mixedCase
Parameter CavalierInu.rescueAnyBEP20Tokens(address,address,uint256)._amount (#680) is not in mixedCase
Constant CavalierInu._decimals (#144) is not in UPPER_CASE_WITH_UNDERSCORES
Variable CavalierInu.genesis_block (#156) is not in mixedCase
Constant CavalierInu._name (#161) is not in UPPER_CASE_WITH_UNDERSCORES
Constant CavalierInu._symbol (#162) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#39)" inContext (#33-42)
Remove redundant statements if they congest code but offer no value.
Additional information: link
CavalierInu.initialsupply (#147) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#62-64)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#66-69)
name() should be declared external:
- CavalierInu.name() (#232-234)
symbol() should be declared external:
- CavalierInu.symbol() (#235-237)
totalSupply() should be declared external:
- CavalierInu.totalSupply() (#243-245)
allowance(address,address) should be declared external:
- CavalierInu.allowance(address,address) (#252-254)
approve(address,uint256) should be declared external:
- CavalierInu.approve(address,uint256) (#256-259)
transferFrom(address,address,uint256) should be declared external:
- CavalierInu.transferFrom(address,address,uint256) (#261-269)
increaseAllowance(address,uint256) should be declared external:
- CavalierInu.increaseAllowance(address,uint256) (#271-274)
decreaseAllowance(address,uint256) should be declared external:
- CavalierInu.decreaseAllowance(address,uint256) (#276-282)
transfer(address,uint256) should be declared external:
- CavalierInu.transfer(address,uint256) (#284-288)
isExcludedFromReward(address) should be declared external:
- CavalierInu.isExcludedFromReward(address) (#290-292)
reflectionFromToken(uint256,bool) should be declared external:
- CavalierInu.reflectionFromToken(uint256,bool) (#294-303)
excludeFromFee(address) should be declared external:
- CavalierInu.excludeFromFee(address) (#339-341)
includeInFee(address) should be declared external:
- CavalierInu.includeInFee(address) (#343-345)
isExcludedFromFee(address) should be declared external:
- CavalierInu.isExcludedFromFee(address) (#347-349)
setTaxes(uint256,uint256,uint256,uint256) should be declared external:
- CavalierInu.setTaxes(uint256,uint256,uint256,uint256) (#351-354)
setSellTaxes(uint256,uint256,uint256,uint256) should be declared external:
- CavalierInu.setSellTaxes(uint256,uint256,uint256,uint256) (#356-359)
rescueAnyBEP20Tokens(address,address,uint256) should be declared external:
- CavalierInu.rescueAnyBEP20Tokens(address,address,uint256) (#680-682)
Use the external attribute for functions never called from the contract.
Additional information: link
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
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 Twitter 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 scam / price dump / death
Young tokens have high risks of scam / price dump / death
Token has no active CoinGecko listing / rank
Token has no active CoinMarketCap listing / rank
Unable to find Twitter account
Telegram account has relatively few subscribers
Unable to find Blog account (Reddit or Medium)
Unable to find Youtube account
Unable to find Discord account