NFTeez is a community-focused multi-chain DeFi and NFT platform. The aim is to provide a premium multi-chain NFT marketplace to customers from all over the world as well as a DeFi platform with yield farming options and a launchpad to assist artists and projects in gaining early support.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
NFTeez.addLiquidity(uint256,uint256) (#1320-1335) sends eth to arbitrary user
Dangerous calls:
- pancakeSwapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#1326-1333)
Ensure that an arbitrary user cannot withdraw unauthorized funds.
Additional information: link
Reentrancy in NFTeez._transfer(address,address,uint256) (#1166-1228):
External calls:
- swapAndLiquify(swapTokens) (#1194)
- pancakeSwapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#1326-1333)
- pancakeSwapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1264-1270)
- swapAndSendMarketing(marketingTokens) (#1197)
- IERC20(BUSD).transfer(_marketingAndInitiativesWalletAddress,newBalance) (#1304)
- pancakeSwapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1284-1290)
- swapAndSendBuyBack(buyBackTokens) (#1200)
- IERC20(BUSD).transfer(_buyBackAndBurnWalletAddress,newBalance) (#1317)
- pancakeSwapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1284-1290)
External calls sending eth:
- swapAndLiquify(swapTokens) (#1194)
- pancakeSwapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#1326-1333)
State variables written after the call(s):
- super._transfer(from,address(this),fees) (#1223)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#913)
- _balances[recipient] = _balances[recipient].add(amount) (#914)
- super._transfer(from,to,amount) (#1226)
- _balances[sender] = _balances[sender].sub(amount,ERC20: transfer amount exceeds balance) (#913)
- _balances[recipient] = _balances[recipient].add(amount) (#914)
- swapping = false (#1202)
Apply the check-effects-interactions pattern.
Additional information: link
NFTeez.swapAndSendBuyBack(uint256) (#1307-1318) ignores return value by IERC20(BUSD).transfer(_buyBackAndBurnWalletAddress,newBalance) (#1317)
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.
Contract ticker ($NFTeez) contains non-alphanumeric characters.
Not a direct threat, but may indicate unreliable intentions of developer. Non-alphanumeric chars (,.;!#*&") are extremely rare among low risk tokens.
NFTeez.addLiquidity(uint256,uint256) (#1320-1335) ignores return value by pancakeSwapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#1326-1333)
Ensure that all the return values of the function calls are used.
Additional information: link
NFTeez.setBuyBackFee(uint256) (#1131-1133) should emit an event for:
- buyBackAndBurnFee = value (#1132)
Emit an event for critical parameter changes.
Additional information: link
NFTeez.updatePancakeSwapV2Router(address)._pancakeSwapV2Pair (#1091-1092) lacks a zero-check on :
- pancakeSwapV2Pair = _pancakeSwapV2Pair (#1093)
Check that the address is not zero.
Additional information: link
Reentrancy in NFTeez.updatePancakeSwapV2Router(address) (#1087-1094):
External calls:
- _pancakeSwapV2Pair = IPancakeSwapV2Factory(pancakeSwapV2Router.factory()).createPair(address(this),pancakeSwapV2Router.WETH()) (#1091-1092)
State variables written after the call(s):
- pancakeSwapV2Pair = _pancakeSwapV2Pair (#1093)
Apply the check-effects-interactions pattern.
Additional information: link
Reentrancy in NFTeez.swapAndLiquify(uint256) (#1231-1253):
External calls:
- swapTokensForEth(half) (#1244)
- pancakeSwapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(tokenAmount,0,path,address(this),block.timestamp) (#1264-1270)
- addLiquidity(otherHalf,newBalance) (#1250)
- pancakeSwapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#1326-1333)
External calls sending eth:
- addLiquidity(otherHalf,newBalance) (#1250)
- pancakeSwapV2Router.addLiquidityETH{value: ethAmount}(address(this),tokenAmount,0,0,address(0),block.timestamp) (#1326-1333)
Event emitted after the call(s):
- Approval(owner,spender,amount) (#980)
- addLiquidity(otherHalf,newBalance) (#1250)
- SwapAndLiquify(half,newBalance,otherHalf) (#1252)
Apply the check-effects-interactions pattern.
Additional information: link
SafeMathUint.toInt256Safe(uint256) (#10-14) is never used and should be removed
Remove unused functions.
Additional information: link
NFTeez.previousBuyBackAndBurnFee (#1024) is set pre-construction with a non-constant function or state variable:
- buyBackAndBurnFee
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-0.8.7 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
Variable NFTeez._buyBackAndBurnWalletAddress (#1030) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#270)" inContext (#264-273)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Variable IPancakeSwapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountADesired (#336) is too similar to IPancakeSwapV2Router01.addLiquidity(address,address,uint256,uint256,uint256,uint256,address,uint256).amountBDesired (#337)
Prevent variables from having similar names.
Additional information: link
NFTeez.slitherConstructorVariables() (#1006-1338) uses literals with too many digits:
- swapTokensAtAmount = 1000000 * (10 ** 18) (#1016)
Use: Ether suffix, Time suffix, or The scientific notation
Additional information: link
SafeMathInt.MAX_INT256 (#49) is never used in SafeMathInt (#47-105)
Remove unused state variables.
Additional information: link
NFTeez.swapTokensAtAmount (#1016) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
isExcludedFromFees(address) should be declared external:
- NFTeez.isExcludedFromFees(address) (#1162-1164)
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.
Unable to crawl data from the website
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/project description on the website or on BscScan, CoinMarketCap
Unable to find token contract audit
Unable to verify token contract address on the website
Unable to find audit link on the website
Unable to find whitepaper link on the website
Unable to find Telegram 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 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
Twitter account link seems to be invalid
Telegram account has relatively few subscribers
Unable to find Blog account (Reddit or Medium)
Unable to find Youtube account
Unable to find Discord account