MTDU [MetaDoge] Token

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

Contract ownership is not renounced (belongs to a wallet)

Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3) allows old versions
solc-0.8.12 is not recommended for deployment
Pragma version^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3) allows old versions
Pragma version^0.8.2 (contracts/MetaDoge.sol#1) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/math/SafeMath.sol#3) allows old versions
Pragma version^0.8.0 (@openzeppelin/contracts/utils/Address.sol#3) 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.functionCallWithValue(address,bytes,uint256,string) (@openzeppelin/contracts/utils/Address.sol#122-133):
- (success,returndata) = target.call{value: value}(data) (@openzeppelin/contracts/utils/Address.sol#131)
Low level call in Address.functionDelegateCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#178-187):
- (success,returndata) = target.delegatecall(data) (@openzeppelin/contracts/utils/Address.sol#185)
Low level call in Address.sendValue(address,uint256) (@openzeppelin/contracts/utils/Address.sol#54-59):
- (success) = recipient.call{value: amount}() (@openzeppelin/contracts/utils/Address.sol#57)
Low level call in Address.functionStaticCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#151-160):
- (success,returndata) = target.staticcall(data) (@openzeppelin/contracts/utils/Address.sol#158)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Parameter MetaDoge.excludeAddress(address)._address (contracts/MetaDoge.sol#256) is not in mixedCase
Parameter MetaDoge.removeExcludedAddress(address)._address (contracts/MetaDoge.sol#261) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

MetaDoge.constructor() (contracts/MetaDoge.sol#40-49) uses literals with too many digits:
- _mint(0x34A8C43b0d43d2Bd1DfbE551442e43E2a834a02a,1000000000 * 10 ** 18) (contracts/MetaDoge.sol#43)
Use: Ether suffix, Time suffix, or The scientific notation

Additional information: link

name() should be declared external:
- MetaDoge.name() (contracts/MetaDoge.sol#51-53)
removeExcludedAddress(address) should be declared external:
- MetaDoge.removeExcludedAddress(address) (contracts/MetaDoge.sol#261-264)
setMasterFee(uint256) should be declared external:
- MetaDoge.setMasterFee(uint256) (contracts/MetaDoge.sol#163-165)
renounceOwnership() should be declared external:
- Ownable.renounceOwnership() (@openzeppelin/contracts/access/Ownable.sol#53-55)
setMarketingWallet(address) should be declared external:
- MetaDoge.setMarketingWallet(address) (contracts/MetaDoge.sol#175-177)
decimals() should be declared external:
- MetaDoge.decimals() (contracts/MetaDoge.sol#59-61)
totalSupply() should be declared external:
- MetaDoge.totalSupply() (contracts/MetaDoge.sol#266-268)
transferOwnership(address) should be declared external:
- Ownable.transferOwnership(address) (@openzeppelin/contracts/access/Ownable.sol#61-64)
transfer(address,uint256) should be declared external:
- MetaDoge.transfer(address,uint256) (contracts/MetaDoge.sol#83-91)
allowance(address,address) should be declared external:
- MetaDoge.allowance(address,address) (contracts/MetaDoge.sol#63-71)
decreaseAllowance(address,uint256) should be declared external:
- MetaDoge.decreaseAllowance(address,uint256) (contracts/MetaDoge.sol#127-142)
transferFrom(address,address,uint256) should be declared external:
- MetaDoge.transferFrom(address,address,uint256) (contracts/MetaDoge.sol#93-112)
symbol() should be declared external:
- MetaDoge.symbol() (contracts/MetaDoge.sol#55-57)
approve(address,uint256) should be declared external:
- MetaDoge.approve(address,uint256) (contracts/MetaDoge.sol#73-81)
increaseAllowance(address,uint256) should be declared external:
- MetaDoge.increaseAllowance(address,uint256) (contracts/MetaDoge.sol#114-125)
setMarketingFee(uint256) should be declared external:
- MetaDoge.setMarketingFee(uint256) (contracts/MetaDoge.sol#167-169)
setMasterWallet(address) should be declared external:
- MetaDoge.setMasterWallet(address) (contracts/MetaDoge.sol#171-173)
balanceOf(address) should be declared external:
- MetaDoge.balanceOf(address) (contracts/MetaDoge.sol#159-161)
Use the external attribute for functions never called from the contract.

Additional information: link

Address.verifyCallResult(bool,bytes,string) (@openzeppelin/contracts/utils/Address.sol#195-215) is never used and should be removed
SafeMath.tryDiv(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#63-68) is never used and should be removed
Address.sendValue(address,uint256) (@openzeppelin/contracts/utils/Address.sol#54-59) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256) (@openzeppelin/contracts/utils/Address.sol#108-114) is never used and should be removed
SafeMath.tryMod(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#75-80) is never used and should be removed
Address.functionDelegateCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#178-187) is never used and should be removed
SafeMath.sub(uint256,uint256,string) (@openzeppelin/contracts/utils/math/SafeMath.sol#167-176) is never used and should be removed
Address.functionDelegateCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#168-170) is never used and should be removed
SafeMath.tryAdd(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#21-27) is never used and should be removed
SafeMath.mod(uint256,uint256,string) (@openzeppelin/contracts/utils/math/SafeMath.sol#216-225) is never used and should be removed
MetaDoge._burn(address,uint256) (contracts/MetaDoge.sol#210-221) is never used and should be removed
Address.functionCallWithValue(address,bytes,uint256,string) (@openzeppelin/contracts/utils/Address.sol#122-133) is never used and should be removed
SafeMath.div(uint256,uint256,string) (@openzeppelin/contracts/utils/math/SafeMath.sol#190-199) is never used and should be removed
Context._msgData() (@openzeppelin/contracts/utils/Context.sol#20-22) is never used and should be removed
Address.functionStaticCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#141-143) is never used and should be removed
SafeMath.mod(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#150-152) is never used and should be removed
SafeMath.tryMul(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#46-56) is never used and should be removed
SafeMath.trySub(uint256,uint256) (@openzeppelin/contracts/utils/math/SafeMath.sol#34-39) is never used and should be removed
Address.isContract(address) (@openzeppelin/contracts/utils/Address.sol#26-36) is never used and should be removed
Address.functionCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#89-95) is never used and should be removed
Address.functionStaticCall(address,bytes,string) (@openzeppelin/contracts/utils/Address.sol#151-160) is never used and should be removed
Address.functionCall(address,bytes) (@openzeppelin/contracts/utils/Address.sol#79-81) is never used and should be removed
Remove unused functions.

Additional information: link

MetaDoge._approve(address,address,uint256).owner (contracts/MetaDoge.sol#145) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#34-36) (function)
MetaDoge.allowance(address,address).owner (contracts/MetaDoge.sol#63) shadows:
- Ownable.owner() (@openzeppelin/contracts/access/Ownable.sol#34-36) (function)
Rename the local variables that shadow another component.

Additional information: link

MetaDoge.setMarketingFee(uint256) (contracts/MetaDoge.sol#167-169) should emit an event for:
- marketingFee = fee (contracts/MetaDoge.sol#168)
MetaDoge.setMasterFee(uint256) (contracts/MetaDoge.sol#163-165) should emit an event for:
- masterFee = fee (contracts/MetaDoge.sol#164)
Emit an event for critical parameter changes.

Additional information: link

MetaDoge.setMasterWallet(address).wallet (contracts/MetaDoge.sol#171) lacks a zero-check on :
- masterWallet = wallet (contracts/MetaDoge.sol#172)
MetaDoge.setMarketingWallet(address).wallet (contracts/MetaDoge.sol#175) lacks a zero-check on :
- marketingWallet = wallet (contracts/MetaDoge.sol#176)
Check that the address is not zero.

Additional information: link

Reentrancy in MetaDoge._transfer(address,address,uint256) (contracts/MetaDoge.sol#179-200):
External calls:
- _beforeTokenTransfer(sender,recipient,amount) (contracts/MetaDoge.sol#186)
- antisnipe.assureCanTransfer(msg.sender,from,to,amount) (contracts/MetaDoge.sol#280)
State variables written after the call(s):
- _transferWithoutFee(sender,recipient,amount) (contracts/MetaDoge.sol#195)
- _balances[sender] = _balances[sender].sub(amount) (contracts/MetaDoge.sol#228)
- _balances[recipient] = _balances[recipient].add(amount) (contracts/MetaDoge.sol#229)
- _transferWithoutFee(sender,recipient,amount) (contracts/MetaDoge.sol#197)
- _balances[sender] = _balances[sender].sub(amount) (contracts/MetaDoge.sol#228)
- _balances[recipient] = _balances[recipient].add(amount) (contracts/MetaDoge.sol#229)
- _transferStandard(sender,recipient,amount) (contracts/MetaDoge.sol#198)
- _balances[sender] = _balances[sender].sub(amount) (contracts/MetaDoge.sol#242)
- _balances[recipient] = _balances[recipient].add(realAmount) (contracts/MetaDoge.sol#243)
- _balances[masterWallet] = _balances[masterWallet].add(feeToMaster) (contracts/MetaDoge.sol#247)
- _balances[marketingWallet] = _balances[marketingWallet].add(feeToMarketing) (contracts/MetaDoge.sol#250-252)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in MetaDoge._transfer(address,address,uint256) (contracts/MetaDoge.sol#179-200):
External calls:
- _beforeTokenTransfer(sender,recipient,amount) (contracts/MetaDoge.sol#186)
- antisnipe.assureCanTransfer(msg.sender,from,to,amount) (contracts/MetaDoge.sol#280)
Event emitted after the call(s):
- Transfer(sender,recipient,amount) (contracts/MetaDoge.sol#230)
- _transferWithoutFee(sender,recipient,amount) (contracts/MetaDoge.sol#195)
- Transfer(sender,recipient,amount) (contracts/MetaDoge.sol#230)
- _transferWithoutFee(sender,recipient,amount) (contracts/MetaDoge.sol#197)
- Transfer(sender,recipient,realAmount) (contracts/MetaDoge.sol#245)
- _transferStandard(sender,recipient,amount) (contracts/MetaDoge.sol#198)
- Transfer(sender,masterWallet,feeToMaster) (contracts/MetaDoge.sol#248)
- _transferStandard(sender,recipient,amount) (contracts/MetaDoge.sol#198)
- Transfer(sender,masterWallet,feeToMarketing) (contracts/MetaDoge.sol#253)
- _transferStandard(sender,recipient,amount) (contracts/MetaDoge.sol#198)
Apply the check-effects-interactions pattern.

Additional information: link

Address.isContract(address) (@openzeppelin/contracts/utils/Address.sol#26-36) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/Address.sol#32-34)
Address.verifyCallResult(bool,bytes,string) (@openzeppelin/contracts/utils/Address.sol#195-215) uses assembly
- INLINE ASM (@openzeppelin/contracts/utils/Address.sol#207-210)
Do not use evm assembly.

Additional information: link

Different versions of Solidity are used:
- Version used: ['^0.8.0', '^0.8.2']
- ^0.8.0 (@openzeppelin/contracts/access/Ownable.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/IERC20.sol#3)
- ^0.8.0 (@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/Address.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/Context.sol#3)
- ^0.8.0 (@openzeppelin/contracts/utils/math/SafeMath.sol#3)
- ^0.8.2 (contracts/MetaDoge.sol#1)
Use one Solidity version.

Additional information: link

Average 30d PancakeSwap volume is less than $100. Token is either dead or inactive.

Average 30d PancakeSwap liquidity is low.

Average 30d number of PancakeSwap swaps is low.

Number of Binance Smart Chain (BSC) token holders is low.

Average PancakeSwap trading volume, liqudity, number of swaps are low. Token seems to be inactive.

Token is deployed only at one blockchain

Token has only one trading pair

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

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Unable to find token on CoinGecko

Additional information: link

Unable to find token contract audit

Unable to find KYC or doxxing proof

Unable to verify token contract address on the website

Unable to find audit link on the website

Token is not listed at Mobula.Finance

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Unable to find token on CoinHunt

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Unable to find code repository for the project

Young tokens have high risks of price dump / death

Token has no active CoinGecko listing / rank

Young tokens have high risks of price dump / death

Young tokens have high risks of price dump / death

Token has relatively low CoinMarketCap rank