CJP [Crypto Jackpot] Token

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

CryptoJackpot.swapAndLiquify(uint256) (#1418-1446) sends eth to arbitrary user
Dangerous calls:
- marketingWallet.transfer(address(this).balance) (#1443)
CryptoJackpot.addLiquidity(uint256,uint256) (#1471-1483) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in CryptoJackpot._transfer(address,address,uint256) (#1372-1416):
External calls:
- swapAndLiquify(contractTokenBalance) (#1404)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1461-1467)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1404)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- marketingWallet.transfer(address(this).balance) (#1443)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (#1411)
- _balances[sender] = senderBalance - amount (#338)
- _balances[recipient] += amount (#340)
- super._transfer(from,to,amount) (#1415)
- _balances[sender] = senderBalance - amount (#338)
- _balances[recipient] += amount (#340)
Reentrancy in CryptoJackpot.swapAndLiquify(uint256) (#1418-1446):
External calls:
- swapTokensForBNB(half) (#1433)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1461-1467)
- addLiquidity(otherHalf,newBalance) (#1439)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- swapTokensForBNB(tokensForMarketing) (#1442)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1461-1467)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1439)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
State variables written after the call(s):
- swapTokensForBNB(tokensForMarketing) (#1442)
- _allowances[owner][spender] = amount (#417)
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.

CryptoJackpot.addLiquidity(uint256,uint256) (#1471-1483) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
Ensure that all the return values of the function calls are used.

Additional information: link

CryptoJackpot.setFee(uint256,uint256) (#1254-1259) should emit an event for:
- liquidityFee = _liquidityFee (#1255)
- totalFees = liquidityFee.add(marketingFee) (#1258)
CryptoJackpot.setMaxBuyTransaction(uint256) (#1261-1263) should emit an event for:
- maxBuyTransactionAmount = _maxBuyTxAmount * 10 ** 18 (#1262)
CryptoJackpot.setMaxSellTransaction(uint256) (#1265-1267) should emit an event for:
- maxSellTransactionAmount = _maxSellTxAmount * 10 ** 18 (#1266)
CryptoJackpot.setSwapTokensAtAmount(uint256) (#1273-1275) should emit an event for:
- swapTokensAtAmount = newLimit * 10 ** 18 (#1274)
Emit an event for critical parameter changes.

Additional information: link

CryptoJackpot.setMarketingWallet(address).newAddress (#1269) lacks a zero-check on :
- marketingWallet = newAddress (#1270)
Check that the address is not zero.

Additional information: link

Reentrancy in CryptoJackpot.constructor() (#1277-1309):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1286-1287)
State variables written after the call(s):
- _mint(owner(),2000000000 * (10 ** 18)) (#1308)
- _balances[account] += amount (#362)
- excludeFromFees(owner(),true) (#1295)
- _isExcludedFromFees[account] = excluded (#1323)
- excludeFromFees(marketingWallet,true) (#1296)
- _isExcludedFromFees[account] = excluded (#1323)
- excludeFromFees(address(this),true) (#1297)
- _isExcludedFromFees[account] = excluded (#1323)
- _isExcludedFromMaxTx[owner()] = true (#1300)
- _isExcludedFromMaxTx[address(this)] = true (#1301)
- _isExcludedFromMaxTx[marketingWallet] = true (#1302)
- _mint(owner(),2000000000 * (10 ** 18)) (#1308)
- _totalSupply += amount (#361)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1292)
- automatedMarketMakerPairs[pair] = value (#1354)
- uniswapV2Pair = _uniswapV2Pair (#1290)
- uniswapV2Router = _uniswapV2Router (#1289)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in CryptoJackpot._transfer(address,address,uint256) (#1372-1416):
External calls:
- swapAndLiquify(contractTokenBalance) (#1404)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1461-1467)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1404)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- marketingWallet.transfer(address(this).balance) (#1443)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#342)
- super._transfer(from,address(this),fees) (#1411)
- Transfer(sender,recipient,amount) (#342)
- super._transfer(from,to,amount) (#1415)
Reentrancy in CryptoJackpot.constructor() (#1277-1309):
External calls:
- _uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this),_uniswapV2Router.WETH()) (#1286-1287)
Event emitted after the call(s):
- ExcludeFromFees(account,excluded) (#1325)
- excludeFromFees(owner(),true) (#1295)
- ExcludeFromFees(account,excluded) (#1325)
- excludeFromFees(address(this),true) (#1297)
- ExcludeFromFees(account,excluded) (#1325)
- excludeFromFees(marketingWallet,true) (#1296)
- SetAutomatedMarketMakerPair(pair,value) (#1356)
- _setAutomatedMarketMakerPair(_uniswapV2Pair,true) (#1292)
- Transfer(address(0),account,amount) (#363)
- _mint(owner(),2000000000 * (10 ** 18)) (#1308)
Reentrancy in CryptoJackpot.swapAndLiquify(uint256) (#1418-1446):
External calls:
- swapTokensForBNB(half) (#1433)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1461-1467)
- addLiquidity(otherHalf,newBalance) (#1439)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- swapTokensForBNB(tokensForMarketing) (#1442)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1461-1467)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1439)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#418)
- swapTokensForBNB(tokensForMarketing) (#1442)
Reentrancy in CryptoJackpot.swapAndLiquify(uint256) (#1418-1446):
External calls:
- swapTokensForBNB(half) (#1433)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1461-1467)
- addLiquidity(otherHalf,newBalance) (#1439)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- swapTokensForBNB(tokensForMarketing) (#1442)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1461-1467)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1439)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- marketingWallet.transfer(address(this).balance) (#1443)
Event emitted after the call(s):
- SwapAndLiquify(half,newBalance) (#1445)
Apply the check-effects-interactions pattern.

Additional information: link

Context._msgData() (#10-12) is never used and should be removed
ERC20._burn(address,uint256) (#379-394) is never used and should be removed
SafeCast.toInt128(int256) (#1113-1116) is never used and should be removed
SafeCast.toInt16(int256) (#1167-1170) is never used and should be removed
SafeCast.toInt256(uint256) (#1197-1201) is never used and should be removed
SafeCast.toInt32(int256) (#1149-1152) is never used and should be removed
SafeCast.toInt64(int256) (#1131-1134) is never used and should be removed
SafeCast.toInt8(int256) (#1185-1188) is never used and should be removed
SafeCast.toUint128(uint256) (#1008-1011) is never used and should be removed
SafeCast.toUint16(uint256) (#1068-1071) is never used and should be removed
SafeCast.toUint224(uint256) (#993-996) is never used and should be removed
SafeCast.toUint256(int256) (#1095-1098) is never used and should be removed
SafeCast.toUint32(uint256) (#1053-1056) is never used and should be removed
SafeCast.toUint64(uint256) (#1038-1041) is never used and should be removed
SafeCast.toUint8(uint256) (#1083-1086) is never used and should be removed
SafeCast.toUint96(uint256) (#1023-1026) is never used and should be removed
SafeMath.div(uint256,uint256,string) (#929-938) is never used and should be removed
SafeMath.mod(uint256,uint256) (#889-891) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (#955-964) is never used and should be removed
SafeMath.sub(uint256,uint256,string) (#906-915) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (#760-766) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (#802-807) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (#814-819) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (#785-795) is never used and should be removed
SafeMath.trySub(uint256,uint256) (#773-778) is never used and should be removed
SignedSafeMath.add(int256,int256) (#739-741) is never used and should be removed
SignedSafeMath.div(int256,int256) (#711-713) is never used and should be removed
SignedSafeMath.mul(int256,int256) (#697-699) is never used and should be removed
SignedSafeMath.sub(int256,int256) (#725-727) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version0.8.9 (#3) necessitates a version too recent to be trusted. Consider deploying with 0.6.12/0.7.6/0.8.7
solc-0.8.9 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

Function IUniswapV2Router01.WETH() (#531) is not in mixedCase
Parameter CryptoJackpot.setFee(uint256,uint256)._liquidityFee (#1254) is not in mixedCase
Parameter CryptoJackpot.setFee(uint256,uint256)._marketingFee (#1254) is not in mixedCase
Parameter CryptoJackpot.setMaxBuyTransaction(uint256)._maxBuyTxAmount (#1261) is not in mixedCase
Parameter CryptoJackpot.setMaxSellTransaction(uint256)._maxSellTxAmount (#1265) is not in mixedCase
Parameter CryptoJackpot.setExcludeFromMaxTx(address,bool)._address (#1328) is not in mixedCase
Parameter CryptoJackpot.setExcludeFromAll(address)._address (#1333) is not in mixedCase
Parameter CryptoJackpot.setSwapAndLiquifyEnabled(bool)._enabled (#1367) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Reentrancy in CryptoJackpot._transfer(address,address,uint256) (#1372-1416):
External calls:
- swapAndLiquify(contractTokenBalance) (#1404)
- marketingWallet.transfer(address(this).balance) (#1443)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#1404)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- marketingWallet.transfer(address(this).balance) (#1443)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (#1411)
- _balances[sender] = senderBalance - amount (#338)
- _balances[recipient] += amount (#340)
- super._transfer(from,to,amount) (#1415)
- _balances[sender] = senderBalance - amount (#338)
- _balances[recipient] += amount (#340)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (#342)
- super._transfer(from,address(this),fees) (#1411)
- Transfer(sender,recipient,amount) (#342)
- super._transfer(from,to,amount) (#1415)
Reentrancy in CryptoJackpot.swapAndLiquify(uint256) (#1418-1446):
External calls:
- marketingWallet.transfer(address(this).balance) (#1443)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1439)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#1474-1481)
- marketingWallet.transfer(address(this).balance) (#1443)
Event emitted after the call(s):
- SwapAndLiquify(half,newBalance) (#1445)
Apply the check-effects-interactions pattern.

Additional information: link

Variable IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#536) is too similar to IUniswapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#537)
Prevent variables from having similar names.

Additional information: link

CryptoJackpot.constructor() (#1277-1309) uses literals with too many digits:
- _mint(owner(),2000000000 * (10 ** 18)) (#1308)
CryptoJackpot.slitherConstructorVariables() (#1204-1486) uses literals with too many digits:
- maxSellTransactionAmount = 2000000000 * (10 ** 18) (#1214)
CryptoJackpot.slitherConstructorVariables() (#1204-1486) uses literals with too many digits:
- maxBuyTransactionAmount = 2000000000 * (10 ** 18) (#1215)
CryptoJackpot.slitherConstructorVariables() (#1204-1486) uses literals with too many digits:
- swapTokensAtAmount = 400000 * (10 ** 18) (#1216)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

name() should be declared external:
- ERC20.name() (#166-168)
symbol() should be declared external:
- ERC20.symbol() (#174-176)
decimals() should be declared external:
- ERC20.decimals() (#191-193)
totalSupply() should be declared external:
- ERC20.totalSupply() (#198-200)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#217-220)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#236-239)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#254-268)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#282-285)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#301-309)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#508-510)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#516-519)
setFee(uint256,uint256) should be declared external:
- CryptoJackpot.setFee(uint256,uint256) (#1254-1259)
setMaxBuyTransaction(uint256) should be declared external:
- CryptoJackpot.setMaxBuyTransaction(uint256) (#1261-1263)
setMaxSellTransaction(uint256) should be declared external:
- CryptoJackpot.setMaxSellTransaction(uint256) (#1265-1267)
setMarketingWallet(address) should be declared external:
- CryptoJackpot.setMarketingWallet(address) (#1269-1271)
setSwapTokensAtAmount(uint256) should be declared external:
- CryptoJackpot.setSwapTokensAtAmount(uint256) (#1273-1275)
updateUniswapV2Router(address) should be declared external:
- CryptoJackpot.updateUniswapV2Router(address) (#1315-1319)
setExcludeFromMaxTx(address,bool) should be declared external:
- CryptoJackpot.setExcludeFromMaxTx(address,bool) (#1328-1330)
setExcludeFromAll(address) should be declared external:
- CryptoJackpot.setExcludeFromAll(address) (#1333-1336)
excludeMultipleAccountsFromFees(address[],bool) should be declared external:
- CryptoJackpot.excludeMultipleAccountsFromFees(address[],bool) (#1338-1344)
setAutomatedMarketMakerPair(address,bool) should be declared external:
- CryptoJackpot.setAutomatedMarketMakerPair(address,bool) (#1346-1350)
isExcludedFromFees(address) should be declared external:
- CryptoJackpot.isExcludedFromFees(address) (#1359-1361)
isExcludedFromMaxTx(address) should be declared external:
- CryptoJackpot.isExcludedFromMaxTx(address) (#1363-1365)
setSwapAndLiquifyEnabled(bool) should be declared external:
- CryptoJackpot.setSwapAndLiquifyEnabled(bool) (#1367-1370)
Use the external attribute for functions never called from the contract.

Additional information: link

Contract has 15% buy tax and 15% sell tax.
Taxes are high (over 10%) but contract ownership is renounced.

Token is deployed only at one blockchain

Unable to find PancakeSwap trading pair to compute liquidity.

Unable to find PancakeSwap trading pair to compute number of swaps.

Unable to find token contract audit

Unable to find audit 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

Young tokens have high risks of scam / price dump / death

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

Token has relatively low CoinGecko rank

Token has relatively low CoinMarketCap rank