JPT [Jackpot] Token

Jackpot.swapBnbForBUSDToken(uint256) (#1291-1304) sends eth to arbitrary user
Dangerous calls:
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: bnbAmount}(0,path,address(this),block.timestamp) (#1297-1302)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in Jackpot._transfer(address,address,uint256) (#1166-1253):
External calls:
- swapBack(sellTokens) (#1222)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(liquidityWallet),block.timestamp) (#1280-1287)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1265-1271)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: bnbAmount}(0,path,address(this),block.timestamp) (#1297-1302)
- BUSD.transfer(address(marketingWallet),busdAmount * marketingFee / totalBNBFee) (#1327)
- BUSD.transfer(address(jackpot1Wallet),busdAmount * jackpot1Fee / totalBNBFee) (#1330)
- BUSD.transfer(address(jackpot2Wallet),busdAmount * jackpot2Fee / totalBNBFee) (#1331)
- BUSD.transfer(address(jackpot3Wallet),busdAmount * jackpot3Fee / totalBNBFee) (#1332)
- BUSD.transfer(address(team1Wallet),busdAmount * team1Fee / totalBNBFee) (#1335)
- BUSD.transfer(address(team2Wallet),busdAmount * team2Fee / totalBNBFee) (#1336)
- BUSD.transfer(address(team3Wallet),busdAmount * team3Fee / totalBNBFee) (#1337)
- BUSD.transfer(address(team4Wallet),busdAmount * team4Fee / totalBNBFee) (#1338)
- BUSD.transfer(address(team5Wallet),busdAmount * team5Fee / totalBNBFee) (#1339)
- BUSD.transfer(address(team6Wallet),busdAmount * team6Fee / totalBNBFee) (#1340)
External calls sending eth:
- swapBack(sellTokens) (#1222)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(liquidityWallet),block.timestamp) (#1280-1287)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: bnbAmount}(0,path,address(this),block.timestamp) (#1297-1302)
State variables written after the call(s):
- super._transfer(from,address(0x0aB77f98884ed054Ad053Fa1BD2469b2673cC0DB),fees * 3) (#1240)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#386)
- _balances[recipient] = _balances[recipient].add(amount) (#387)
- super._transfer(from,address(this),fees) (#1241)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#386)
- _balances[recipient] = _balances[recipient].add(amount) (#387)
- super._transfer(from,address(this),fees) (#1247)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#386)
- _balances[recipient] = _balances[recipient].add(amount) (#387)
- super._transfer(from,to,amount) (#1252)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#386)
- _balances[recipient] = _balances[recipient].add(amount) (#387)
- swapping = false (#1225)
Apply the check-effects-interactions pattern.

Additional information: link

Jackpot.swapBack(uint256) (#1306-1346) ignores return value by BUSD.transfer(address(team6Wallet),busdAmount * team6Fee / totalBNBFee) (#1340)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.

Additional information: link

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

Jackpot._transfer(address,address,uint256) (#1166-1253) uses a dangerous strict equality:
- from != owner() && from != presaleAddress && from != presaleRouterAddress && automatedMarketMakerPairs[from] && ! automatedMarketMakerPairs[to] && block.number == tradingActiveBlock (#1202)
Don't use strict equality to determine if an account has enough Ether or tokens.

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.

SafeMathInt.MAX_INT256 (#676) is never used in SafeMathInt (#674-732)
Remove unused state variables.

Additional information: link

Jackpot._transfer(address,address,uint256) (#1166-1253) performs a multiplication on the result of a division:
-fees = fees * 4 (#1242)
-fees = fees.mul(sellFeeIncreaseFactor).div(100) (#1245)
Consider ordering multiplication before division.

Additional information: link

Jackpot.addLiquidity(uint256,uint256) (#1275-1289) ignores return value by uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(liquidityWallet),block.timestamp) (#1280-1287)
Ensure that all the return values of the function calls are used.

Additional information: link

Jackpot.constructor().totalSupply (#974) shadows:
- ERC20.totalSupply() (#260-262) (function)
- IERC20.totalSupply() (#110) (function)
Rename the local variables that shadow another component.

Additional information: link

Jackpot.updateSellPenalty(uint256) (#1091-1094) should emit an event for:
- sellFeeIncreaseFactor = sellFactor (#1093)
Emit an event for critical parameter changes.

Additional information: link

Jackpot.updateTeam6Wallet(address).newWallet (#1152) lacks a zero-check on :
- team6Wallet = newWallet (#1153)
Check that the address is not zero.

Additional information: link

Reentrancy in Jackpot.swapBack(uint256) (#1306-1346):
External calls:
- swapTokensForEth(amountToSwap) (#1312)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1265-1271)
- swapBnbForBUSDToken(amountForBUSD) (#1322)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: bnbAmount}(0,path,address(this),block.timestamp) (#1297-1302)
- BUSD.transfer(address(marketingWallet),busdAmount * marketingFee / totalBNBFee) (#1327)
- BUSD.transfer(address(jackpot1Wallet),busdAmount * jackpot1Fee / totalBNBFee) (#1330)
- BUSD.transfer(address(jackpot2Wallet),busdAmount * jackpot2Fee / totalBNBFee) (#1331)
- BUSD.transfer(address(jackpot3Wallet),busdAmount * jackpot3Fee / totalBNBFee) (#1332)
- BUSD.transfer(address(team1Wallet),busdAmount * team1Fee / totalBNBFee) (#1335)
- BUSD.transfer(address(team2Wallet),busdAmount * team2Fee / totalBNBFee) (#1336)
- BUSD.transfer(address(team3Wallet),busdAmount * team3Fee / totalBNBFee) (#1337)
- BUSD.transfer(address(team4Wallet),busdAmount * team4Fee / totalBNBFee) (#1338)
- BUSD.transfer(address(team5Wallet),busdAmount * team5Fee / totalBNBFee) (#1339)
- BUSD.transfer(address(team6Wallet),busdAmount * team6Fee / totalBNBFee) (#1340)
- addLiquidity(amountToLiquify,amountBNB.mul(liquidityFee).div(totalBNBFee).div(2)) (#1344)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(liquidityWallet),block.timestamp) (#1280-1287)
External calls sending eth:
- swapBnbForBUSDToken(amountForBUSD) (#1322)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: bnbAmount}(0,path,address(this),block.timestamp) (#1297-1302)
- addLiquidity(amountToLiquify,amountBNB.mul(liquidityFee).div(totalBNBFee).div(2)) (#1344)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(liquidityWallet),block.timestamp) (#1280-1287)
State variables written after the call(s):
- addLiquidity(amountToLiquify,amountBNB.mul(liquidityFee).div(totalBNBFee).div(2)) (#1344)
- _allowances[owner][spender] = amount (#452)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Jackpot.swapBack(uint256) (#1306-1346):
External calls:
- swapTokensForEth(amountToSwap) (#1312)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1265-1271)
- swapBnbForBUSDToken(amountForBUSD) (#1322)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: bnbAmount}(0,path,address(this),block.timestamp) (#1297-1302)
- BUSD.transfer(address(marketingWallet),busdAmount * marketingFee / totalBNBFee) (#1327)
- BUSD.transfer(address(jackpot1Wallet),busdAmount * jackpot1Fee / totalBNBFee) (#1330)
- BUSD.transfer(address(jackpot2Wallet),busdAmount * jackpot2Fee / totalBNBFee) (#1331)
- BUSD.transfer(address(jackpot3Wallet),busdAmount * jackpot3Fee / totalBNBFee) (#1332)
- BUSD.transfer(address(team1Wallet),busdAmount * team1Fee / totalBNBFee) (#1335)
- BUSD.transfer(address(team2Wallet),busdAmount * team2Fee / totalBNBFee) (#1336)
- BUSD.transfer(address(team3Wallet),busdAmount * team3Fee / totalBNBFee) (#1337)
- BUSD.transfer(address(team4Wallet),busdAmount * team4Fee / totalBNBFee) (#1338)
- BUSD.transfer(address(team5Wallet),busdAmount * team5Fee / totalBNBFee) (#1339)
- BUSD.transfer(address(team6Wallet),busdAmount * team6Fee / totalBNBFee) (#1340)
- addLiquidity(amountToLiquify,amountBNB.mul(liquidityFee).div(totalBNBFee).div(2)) (#1344)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(liquidityWallet),block.timestamp) (#1280-1287)
External calls sending eth:
- swapBnbForBUSDToken(amountForBUSD) (#1322)
- uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: bnbAmount}(0,path,address(this),block.timestamp) (#1297-1302)
- addLiquidity(amountToLiquify,amountBNB.mul(liquidityFee).div(totalBNBFee).div(2)) (#1344)
- uniswapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(liquidityWallet),block.timestamp) (#1280-1287)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#453)
- addLiquidity(amountToLiquify,amountBNB.mul(liquidityFee).div(totalBNBFee).div(2)) (#1344)
Apply the check-effects-interactions pattern.

Additional information: link

Jackpot._transfer(address,address,uint256) (#1166-1253) uses timestamp for comparisons
Dangerous comparisons:
- boughtEarly[from] && automatedMarketMakerPairs[to] && earlyBuyPenaltyEnd > block.timestamp (#1239)
Avoid relying on block.timestamp.

Additional information: link

SafeMathUint.toInt256Safe(uint256) (#735-739) is never used and should be removed
Remove unused functions.

Additional information: link

solc-0.8.6 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

Constant Jackpot.feeDivisor (#933) is not in UPPER_CASE_WITH_UNDERSCORES
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (#34)" inContext (#28-37)
Remove redundant statements if they congest code but offer no value.

Additional information: link

Variable Jackpot.team5Wallet (#895) is too similar to Jackpot.team6Wallet (#896)
Prevent variables from having similar names.

Additional information: link

isExcludedFromFees(address) should be declared external:
- Jackpot.isExcludedFromFees(address) (#1156-1158)
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.

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

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

Additional information: link

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 scam / price dump / death

Token has no active CoinMarketCap listing / rank

Token has relatively low CoinGecko rank