UMBRELLA PROJECT is a BINANCE SMART CHAIN (BEP20) token with a community-driven platform empowering users by rewarding them for their engagement and enjoyment. By using innovative tokenomics, utilizing finance and games.
TokenRecover.recoverERC20(address,uint256) (#1128-1130) ignores return value by IERC20(tokenAddress).transfer(owner(),tokenAmount) (#1129)
Use SafeERC20, or ensure that the transfer/transferFrom return value is checked.
Additional information: link
Unable to find manual contract audit (e.g. Certik, PeckShield, Solidity...)
Contract ownership is not renounced (belongs to a wallet)
CoinToken.constructor(string,string,uint8,uint256,address,address).feeReceiver_ (#1243) lacks a zero-check on :
- address(feeReceiver_).transfer(msg.value) (#1245)
CoinToken.constructor(string,string,uint8,uint256,address,address).tokenOwner (#1242) lacks a zero-check on :
- _owner = tokenOwner (#1246)
Check that the address is not zero.
Additional information: link
Address.isContract(address) (#510-519) uses assembly
- INLINE ASM (#517)
Address._verifyCallResult(bool,bytes,string) (#655-672) uses assembly
- INLINE ASM (#664-667)
Do not use evm assembly.
Additional information: link
Address._verifyCallResult(bool,bytes,string) (#655-672) is never used and should be removed
Address.functionCall(address,bytes) (#563-565) is never used and should be removed
Address.functionCall(address,bytes,string) (#573-575) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (#588-590) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (#598-605) is never used and should be removed
Address.functionDelegateCall(address,bytes) (#637-639) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (#647-653) is never used and should be removed
Address.functionStaticCall(address,bytes) (#613-615) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (#623-629) is never used and should be removed
Address.sendValue(address,uint256) (#537-543) is never used and should be removed
Context._msgData() (#129-132) is never used and should be removed
Remove unused functions.
Additional information: link
Pragma version^0.8.0 (#3) allows old versions
Pragma version^0.8.0 (#83) allows old versions
Pragma version^0.8.0 (#112) allows old versions
Pragma version^0.8.0 (#139) allows old versions
Pragma version^0.8.0 (#445) allows old versions
Pragma version^0.8.0 (#487) allows old versions
Pragma version^0.8.0 (#679) allows old versions
Pragma version^0.8.0 (#706) allows old versions
Pragma version^0.8.0 (#736) allows old versions
Pragma version^0.8.0 (#829) allows old versions
Pragma version^0.8.0 (#863) allows old versions
Pragma version^0.8.0 (#895) allows old versions
Pragma version^0.8.0 (#1052) allows old versions
Pragma version^0.8.0 (#1114) allows old versions
Pragma version^0.8.0 (#1137) allows old versions
Pragma version^0.8.0 (#1164) allows old versions
Pragma version^0.8.0 (#1230) allows old versions
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.sendValue(address,uint256) (#537-543):
- (success) = recipient.call{value: amount}() (#541)
Low level call in Address.functionCallWithValue(address,bytes,uint256,string) (#598-605):
- (success,returndata) = target.call{value: value}(data) (#603)
Low level call in Address.functionStaticCall(address,bytes,string) (#623-629):
- (success,returndata) = target.staticcall(data) (#627)
Low level call in Address.functionDelegateCall(address,bytes,string) (#647-653):
- (success,returndata) = target.delegatecall(data) (#651)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence
Additional information: link
Variable Ownable._owner (#1067) is not in mixedCase
Follow the Solidity naming convention.
Additional information: link
Redundant expression "this (#130)" inContext (#124-133)
Remove redundant statements if they congest code but offer no value.
Additional information: link
Reentrancy in CoinToken.constructor(string,string,uint8,uint256,address,address) (#1237-1249):
External calls:
- address(feeReceiver_).transfer(msg.value) (#1245)
State variables written after the call(s):
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1247)
- _balances[account] += amount (#375)
- _owner = tokenOwner (#1246)
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1247)
- _totalSupply += amount (#374)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#376)
- _mint(tokenOwner,initialBalance_ * 10 ** uint256(decimals_)) (#1247)
Apply the check-effects-interactions pattern.
Additional information: link
name() should be declared external:
- ERC20.name() (#195-197)
symbol() should be declared external:
- ERC20.symbol() (#203-205)
totalSupply() should be declared external:
- ERC20.totalSupply() (#227-229)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (#234-236)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#305-308)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#324-330)
burn(uint256) should be declared external:
- ERC20Burnable.burn(uint256) (#460-462)
burnFrom(address,uint256) should be declared external:
- ERC20Burnable.burnFrom(address,uint256) (#475-480)
transferAndCall(address,uint256) should be declared external:
- ERC1363.transferAndCall(address,uint256) (#923-925)
transferFromAndCall(address,address,uint256) should be declared external:
- ERC1363.transferFromAndCall(address,address,uint256) (#951-957)
approveAndCall(address,uint256) should be declared external:
- ERC1363.approveAndCall(address,uint256) (#984-986)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (#1094-1097)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (#1103-1107)
recoverERC20(address,uint256) should be declared external:
- TokenRecover.recoverERC20(address,uint256) (#1128-1130)
Use the external attribute for functions never called from the contract.
Additional information: link
Average 30d PancakeSwap liquidity is less than $100. Token is either dead or inactive.
Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.
Number of Binance Smart Chain (BSC) token holders is less than 100. Token is either dead or inactive. Ignore for presale.
Average PancakeSwap trading volume, liqudity, number of swaps are extremely low. Token seems to be dead.
Average 30d number of PancakeSwap swaps is low.
Token is deployed only at one blockchain
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
Token is not listed at Mobula.Finance
Additional information: link
Unable to find token on CoinHunt
Additional information: link
Unable to find code repository for the project
Token has no active CoinGecko listing / rank
Token has no active CoinMarketCap listing / rank
Token has a considerable age, but social accounts / website are missing or have few users
Token has a considerable age, but average PancakeSwap 30d trading volume is low
Young tokens have high risks of price dump / death
Young tokens have high risks of price dump / death
Twitter account has relatively few followers
Last post in Twitter was more than 30 days ago