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UMB [Umbrella] Token

About UMB

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Token 10 months
CoinMarketCap 15 months
[CoinMarketCap] alert: Umbrella has undergone a swap on BSC to 0x846F52020749715F02AEf25b5d1d65e48945649D
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ERC20 Token for Umbrella Network's community owned, layer 2 oracle

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Laser Scorebeta Last Audit: 8 February 2022

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Code:


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

UMBBSC.constructor(address,address,uint256,uint256,string,string)._owner (contracts/UMBBSC.sol#21) shadows:
- Ownable._owner (@openzeppelin/contracts/access/Ownable.sol#19) (state variable)
UMBBSC.constructor(address,address,uint256,uint256,string,string)._name (contracts/UMBBSC.sol#25) shadows:
- ERC20._name (@openzeppelin/contracts/token/ERC20/ERC20.sol#42) (state variable)
UMBBSC.constructor(address,address,uint256,uint256,string,string)._symbol (contracts/UMBBSC.sol#26) shadows:
- ERC20._symbol (@openzeppelin/contracts/token/ERC20/ERC20.sol#43) (state variable)
Owned.constructor(address)._owner (contracts/interfaces/Owned.sol#7) shadows:
- Ownable._owner (@openzeppelin/contracts/access/Ownable.sol#19) (state variable)
Rename the local variables that shadow another component.

Additional information: link

Different versions of Solidity is used:
- Version used: ['0.7.5', '>=0.6.0<0.8.0']
- >=0.6.0<0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/math/SafeMath.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3)
- >=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- 0.7.5 (contracts/UMBBSC.sol#2)
- 0.7.5 (contracts/interfaces/Airdrop.sol#2)
- 0.7.5 (contracts/interfaces/IBurnableToken.sol#2)
- 0.7.5 (contracts/interfaces/MintableToken.sol#2)
- 0.7.5 (contracts/interfaces/MintableTokenBsc.sol#2)
- 0.7.5 (contracts/interfaces/Owned.sol#2)
- 0.7.5 (contracts/interfaces/Payable.sol#2)
Use one Solidity version.

Additional information: link

Context._msgData() (@openzeppelin/contracts/utils/Context.sol#20-23) is never used and should be removed
ERC20._setupDecimals(uint8) (@openzeppelin/contracts/token/ERC20/ERC20.sol#287-289) is never used and should be removed
SafeMath.div(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#135-138) is never used and should be removed
SafeMath.div(uint256,uint256,string) (@openzeppelin/contracts/math/SafeMath.sol#190-193) is never used and should be removed
SafeMath.mod(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#152-155) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (@openzeppelin/contracts/math/SafeMath.sol#210-213) is never used and should be removed
SafeMath.mul(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#116-121) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#24-28) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#60-63) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#70-73) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#45-53) is never used and should be removed
SafeMath.trySub(uint256,uint256) (@openzeppelin/contracts/math/SafeMath.sol#35-38) is never used and should be removed
Remove unused functions.

Additional information: link

Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/math/SafeMath.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/token/ERC20/ERC20.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3) is too complex
Pragma version>=0.6.0<0.8.0 (@openzeppelin/contracts/utils/Context.sol#3) is too complex
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

Parameter Airdrop.airdropTokens(address[],uint256[])._addresses (contracts/interfaces/Airdrop.sol#12) is not in mixedCase
Parameter Airdrop.airdropTokens(address[],uint256[])._amounts (contracts/interfaces/Airdrop.sol#13) is not in mixedCase
Parameter MintableToken.burn(uint256)._amount (contracts/interfaces/MintableToken.sol#38) is not in mixedCase
Parameter MintableToken.mint(address,uint256)._holder (contracts/interfaces/MintableToken.sol#45) is not in mixedCase
Parameter MintableToken.mint(address,uint256)._amount (contracts/interfaces/MintableToken.sol#45) is not in mixedCase
Parameter MintableTokenBsc.updateBridge(address)._bridge (contracts/interfaces/MintableTokenBsc.sol#22) is not in mixedCase
Parameter MintableTokenBsc.mint(address,uint256)._holder (contracts/interfaces/MintableTokenBsc.sol#28) is not in mixedCase
Parameter MintableTokenBsc.mint(address,uint256)._amount (contracts/interfaces/MintableTokenBsc.sol#28) is not in mixedCase
Parameter Payable.approveAndCall(address,uint256,bytes)._spender (contracts/interfaces/Payable.sol#13) is not in mixedCase
Parameter Payable.approveAndCall(address,uint256,bytes)._value (contracts/interfaces/Payable.sol#13) is not in mixedCase
Parameter Payable.approveAndCall(address,uint256,bytes)._extraData (contracts/interfaces/Payable.sol#13) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

Redundant expression "this (@openzeppelin/contracts/utils/Context.sol#21)" inContext (@openzeppelin/contracts/utils/Context.sol#15-24)
Remove redundant statements if they congest code but offer no value.

Additional information: link

renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#54-57)
name() should be declared external:
- ERC20.name() (@openzeppelin/contracts/token/ERC20/ERC20.sol#64-66)
symbol() should be declared external:
- ERC20.symbol() (@openzeppelin/contracts/token/ERC20/ERC20.sol#72-74)
decimals() should be declared external:
- ERC20.decimals() (@openzeppelin/contracts/token/ERC20/ERC20.sol#89-91)
balanceOf(address) should be declared external:
- ERC20.balanceOf(address) (@openzeppelin/contracts/token/ERC20/ERC20.sol#103-105)
allowance(address,address) should be declared external:
- ERC20.allowance(address,address) (@openzeppelin/contracts/token/ERC20/ERC20.sol#123-125)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#134-137)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#152-156)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#170-173)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (@openzeppelin/contracts/token/ERC20/ERC20.sol#189-192)
Use the external attribute for functions never called from the contract.

Additional information: link

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Young tokens have high risks of scam / price dump / death


Young tokens have high risks of price dump / death

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