ROYA [Royale] Token

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

AnyswapV4ERC20.depositWithTransferPermit(address,uint256,uint256,uint8,bytes32,bytes32,address) (#339-342) ignores return value by IERC20(underlying).transferWithPermit(target,address(this),value,deadline,v,r,s) (#340)
Ensure that all the return values of the function calls are used.

Additional information: link

AnyswapV4ERC20.constructor(string,string,uint8,address,address)._vault (#298) lacks a zero-check on :
- vault = _vault (#313)
- pendingVault = _vault (#314)
Check that the address is not zero.

Additional information: link

Reentrancy in AnyswapV4ERC20.depositWithTransferPermit(address,uint256,uint256,uint8,bytes32,bytes32,address) (#339-342):
External calls:
- IERC20(underlying).transferWithPermit(target,address(this),value,deadline,v,r,s) (#340)
State variables written after the call(s):
- _deposit(value,to) (#341)
- _totalSupply += amount (#404)
- _deposit(value,to) (#341)
- balanceOf[account] += amount (#405)
Apply the check-effects-interactions pattern.

Additional information: link

Reentrancy in AnyswapV4ERC20.depositWithTransferPermit(address,uint256,uint256,uint8,bytes32,bytes32,address) (#339-342):
External calls:
- IERC20(underlying).transferWithPermit(target,address(this),value,deadline,v,r,s) (#340)
Event emitted after the call(s):
- Transfer(address(0),account,amount) (#406)
- _deposit(value,to) (#341)
Apply the check-effects-interactions pattern.

Additional information: link

AnyswapV4ERC20.transferWithPermit(address,address,uint256,uint256,uint8,bytes32,bytes32) (#480-504) uses timestamp for comparisons
Dangerous comparisons:
- require(bool,string)(block.timestamp <= deadline,AnyswapV3ERC20: Expired permit) (#481)
Avoid relying on block.timestamp.

Additional information: link

AnyswapV4ERC20.constructor(string,string,uint8,address,address) (#298-326) uses assembly
- INLINE ASM (#318)
Do not use evm assembly.

Additional information: link

SafeERC20.safeApprove(IERC20,address,uint256) (#115-120) is never used and should be removed
Remove unused functions.

Additional information: link

solc-0.8.2 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 SafeERC20.callOptionalReturn(IERC20,bytes) (#121-132):
- (success,returndata) = address(token).call(data) (#125)
Avoid low-level calls. Check the call success. If the call is meant for a contract, check for code existence

Additional information: link

Variable AnyswapV4ERC20.DOMAIN_SEPARATOR (#145) is not in mixedCase
Follow the Solidity naming convention.

Additional information: link

AnyswapV4ERC20.pendingDelay (#174) should be constant
Add the constant attributes to state variables that never change.

Additional information: link

Swapout(uint256,address) should be declared external:
- AnyswapV4ERC20.Swapout(uint256,address) (#277-283)
Use the external attribute for functions never called from the contract.

Additional information: link

Not a direct threat, but may indicate unreliable intentions of developer. Widespread names (e.g. Elon, King, Moon, Doge) are common among meme-tokens and scams. The allow to gain free hype and attract unexperienced investors.

Unable to find PancakeSwap trading pair to compute liquidity.

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 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 scam / price dump / death

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

Token has a considerable age, but social accounts / website are missing or have few users

Young tokens have high risks of price dump / death