NFT Puzzle runs on the BEP20 network. It offers its users a marketplace and swap project. It aims to provide passive income to holders with NFT collections to be created. It also gives you 2% NFTPuzzle per transaction.
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
NFTPUZZLE._approve(address,address,uint256).owner (#635) shadows:
- Ownable.owner() (#410-412) (function)
Rename the local variables that shadow another component.
Additional information: link
NFTPUZZLE.updateFee(uint256,uint256,uint256) (#621-629) should emit an event for:
- _TAX_FEE = _txFee * 100 (#623)
- _BURN_FEE = _burnFee * 100 (#624)
- _CHARITY_FEE = _charityFee * 100 (#625)
- ORIG_TAX_FEE = _TAX_FEE (#626)
- ORIG_BURN_FEE = _BURN_FEE (#627)
- ORIG_CHARITY_FEE = _CHARITY_FEE (#628)
Emit an event for critical parameter changes.
Additional information: link
NFTPUZZLE.setAsCharityAccount(address).account (#616) lacks a zero-check on :
- FeeAddress = account (#617)
Check that the address is not zero.
Additional information: link
Address._functionCallWithValue(address,bytes,uint256,string) (#365-386) uses assembly
- INLINE ASM (#378-381)
Do not use evm assembly.
Additional information: link
SafeMath.mod(uint256,uint256,string) (#245-248) 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
Low level call in Address._functionCallWithValue(address,bytes,uint256,string) (#365-386):
- (success,returndata) = target.call{value: weiValue}(data) (#369)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Variable NFTPUZZLE.ORIG_CHARITY_FEE (#478) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#16)" inContext (#10-19)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Reentrancy in NFTPUZZLE.constructor(string,string,uint256,uint256,uint256,uint256,uint256,address,address,address) (#480-498):
External calls:
- address(service).transfer(msg.value) (#496)
Event emitted after the call(s):
- Transfer(address(0),tokenOwner,_tTotal) (#497)
Apply the check-effects-interactions pattern.
Additional information: link
Variable NFTPUZZLE._standardTransferContent(address,address,uint256,uint256).rTransferAmount (#682) is too similar to NFTPUZZLE._transferStandard(address,address,uint256).tTransferAmount (#674)
Prevent variables from having similar names.
Additional information: link
NFTPUZZLE._MAX (#460) should be constant
Add the constant attributes to state variables that never change.
Additional information: link
updateFee(uint256,uint256,uint256) should be declared external:
- NFTPUZZLE.updateFee(uint256,uint256,uint256) (#621-629)
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 contract audit
Unable to find audit link on the website
Unable to find whitepaper link on the website
Unable to find token on CoinHunt
Additional information: link
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 Youtube account
Unable to find Discord account