Pyro [Pyroworld] Token

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

Pyroworld.addLiquidity(uint256,uint256) (#770-784) sends eth to arbitrary user
Dangerous calls:
- (amountToken,amountETH) = uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#775-782)
Ensure that an arbitrary user cannot withdraw unauthorized funds.

Additional information: link

Reentrancy in Pyroworld._transfer(address,address,uint256) (#652-707):
External calls:
- swapAndLiquify(contractTokenBalance) (#690)
- (amountToken,amountETH) = uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#775-782)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#761-767)
External calls sending eth:
- swapAndLiquify(contractTokenBalance) (#690)
- (amountToken,amountETH) = uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#775-782)
- address(_devWallet).transfer(bnbForDev) (#728)
- address(_marketingWallet).transfer(bnbForMarketing) (#732)
- address(_charityWallet).transfer(bnbForCharity) (#736)
- address(_buybackWallet).transfer(bnbForBuyback) (#740)
- address(_lotteryWallet).transfer(bnbForLottery) (#744)
State variables written after the call(s):
- _tokenTransfer(from,to,amount,takeFee) (#698)
- _rOwned[to] = _rOwned[to] + rAmount (#629)
- _rOwned[sender] = _rOwned[sender] - rAmount (#819)
- _rOwned[recipient] = _rOwned[recipient] + rTransferAmount (#824)
- _tokenTransfer(from,to,amount,takeFee) (#698)
- _rTotal = _rTotal - rFee (#587)
- _tokenTransfer(from,to,amount,takeFee) (#698)
- _tOwned[to] = _tOwned[to] + tAmount (#631)
- _tOwned[sender] = _tOwned[sender] - tAmount (#821)
- _tOwned[recipient] = _tOwned[recipient] + tTransferAmount (#826)
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.

Pyroworld.swapAndLiquify(uint256) (#709-750) performs a multiplication on the result of a division:
-bnbForLottery = newBalance / 10000 * _percentageOfLiquidityForLottery (#723)
Consider ordering multiplication before division.

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Pyroworld._approve(address,address,uint256).owner (#644) shadows:
- Ownable.owner() (#40-42) (function)
Rename the local variables that shadow another component.

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Pyroworld.setLiquidityPercentages(uint256,uint256,uint256,uint256,uint256) (#558-564) should emit an event for:
- _percentageOfLiquidityForDev = devFee (#559)
- _percentageOfLiquidityForMarketing = marketingFee (#560)
- _percentageOfLiquidityForCharity = charityFee (#561)
- _percentageOfLiquidityForBuyback = buybackFee (#562)
- _percentageOfLiquidityForLottery = lotteryFee (#563)
Emit an event for critical parameter changes.

Additional information: link

Pyroworld.setUniswapPair(address).p (#578) lacks a zero-check on :
- uniswapV2Pair = p (#579)
Check that the address is not zero.

Additional information: link

Reentrancy in Pyroworld.transferFrom(address,address,uint256) (#433-437):
External calls:
- _transfer(sender,recipient,amount) (#434)
- (amountToken,amountETH) = uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#775-782)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#761-767)
External calls sending eth:
- _transfer(sender,recipient,amount) (#434)
- (amountToken,amountETH) = uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#775-782)
- address(_devWallet).transfer(bnbForDev) (#728)
- address(_marketingWallet).transfer(bnbForMarketing) (#732)
- address(_charityWallet).transfer(bnbForCharity) (#736)
- address(_buybackWallet).transfer(bnbForBuyback) (#740)
- address(_lotteryWallet).transfer(bnbForLottery) (#744)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (#435)
- _allowances[owner][spender] = amount (#648)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in Pyroworld.transferFrom(address,address,uint256) (#433-437):
External calls:
- _transfer(sender,recipient,amount) (#434)
- (amountToken,amountETH) = uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#775-782)
- uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#761-767)
External calls sending eth:
- _transfer(sender,recipient,amount) (#434)
- (amountToken,amountETH) = uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#775-782)
- address(_devWallet).transfer(bnbForDev) (#728)
- address(_marketingWallet).transfer(bnbForMarketing) (#732)
- address(_charityWallet).transfer(bnbForCharity) (#736)
- address(_buybackWallet).transfer(bnbForBuyback) (#740)
- address(_lotteryWallet).transfer(bnbForLottery) (#744)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#649)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (#435)
Apply the check-effects-interactions pattern.

Additional information: link

Ownable.unlock() (#71-76) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp > _lockTime,Contract is still locked) (#73)
Avoid relying on block.timestamp.

Additional information: link

Context._msgData() (#10-13) is never used and should be removed
Remove unused functions.

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Pyroworld._antiWhaleThreshold (#348) is set pre-construction with a non-constant function or state variable:
- _tTotal * 75 / 10000
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

solc-0.8.5 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.

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Variable Pyroworld._antiWhaleThreshold (#348) is not in mixedCase
Follow the Solidity naming convention.

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Redundant expression "this (#11)" inContext (#5-14)
Remove redundant statements if they congest code but offer no value.

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Reentrancy in Pyroworld.transferFrom(address,address,uint256) (#433-437):
External calls:
- _transfer(sender,recipient,amount) (#434)
- address(_devWallet).transfer(bnbForDev) (#728)
- address(_marketingWallet).transfer(bnbForMarketing) (#732)
- address(_charityWallet).transfer(bnbForCharity) (#736)
- address(_buybackWallet).transfer(bnbForBuyback) (#740)
- address(_lotteryWallet).transfer(bnbForLottery) (#744)
External calls sending eth:
- _transfer(sender,recipient,amount) (#434)
- (amountToken,amountETH) = uniswapV2Router.addLiquidityETH{value: bnbAmount}(address(this),tokenAmount,0,0,owner(),block.timestamp) (#775-782)
- address(_devWallet).transfer(bnbForDev) (#728)
- address(_marketingWallet).transfer(bnbForMarketing) (#732)
- address(_charityWallet).transfer(bnbForCharity) (#736)
- address(_buybackWallet).transfer(bnbForBuyback) (#740)
- address(_lotteryWallet).transfer(bnbForLottery) (#744)
State variables written after the call(s):
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (#435)
- _allowances[owner][spender] = amount (#648)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#649)
- _approve(sender,_msgSender(),_allowances[sender][_msgSender()] - amount) (#435)
Apply the check-effects-interactions pattern.

Additional information: link

Variable Pyroworld._getRValues(uint256,uint256,uint256,uint256).rTransferAmount (#603) is too similar to Pyroworld._transferStandard(address,address,uint256).tTransferAmount (#815)
Prevent variables from having similar names.

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Pyroworld.slitherConstructorConstantVariables() (#283-835) uses literals with too many digits:
- _burnAddress = 0x000000000000000000000000000000000000dEaD (#301)
Use: Ether suffix, Time suffix, or The scientific notation

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Pyroworld._tTotal (#304) should be constant
Add the constant attributes to state variables that never change.

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isExcludedFromFee(address) should be declared external:
- Pyroworld.isExcludedFromFee(address) (#640-642)
Use the external attribute for functions never called from the contract.

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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.

BscScan page for the token does not contain additional info: website, socials, description, etc.

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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 token on CoinHunt

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Young tokens have high risks of scam / 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

Token has relatively low CoinGecko rank

Token has relatively low CoinMarketCap rank