HOPPY - Audit

CertiK17 Jul 20241 address on Ethereum

Audit

CertiK reviewed HOPPY (HOPPY - Audit) on 17 Jul 2024: 8 findings, 0 critical; 2 marked fixed, 6 open.

No open critical findings

Open the report Open HOPPY’s security record

Report hosted on skynet.certik.com.

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Findings8

Statuses are the security firm’s own, from its report.

Severity	Open	Fixed
Critical	0	0
High	0	0
Medium	0	0
Low	6	2

LowPotential Failure of Function CallFixed

The `openTrading()` function allows the contract owner to enable trading and create a liquidity pool. This function is designed to set the `swapEnabled` and `tradingOpen` flags to true to facilitate trading. However, if someone external to the contract creates the trading pair before `openTrading` is called, the function will fail. As a result, the `swapEnabled` and `tradingOpen` variables remain `false`.

LowZero-Only Fee Reduction Issue in `reduceFee` FuncFixed

In the `reduceFee()` function, which is invoked by `_taxWallet` to reduce the fee, there is a logical flaw. The function checks if the `_newFee` is less than `_finalBuyTax` at line 341. Since `_finalBuyTax` is initialized to 0, the function can only succeed if `_newFee` is set to 0. This effectively prevents the reduceFee function from reducing fees to any value other than zero, rendering it ineffective for its intended purpose of flexible fee adjustment. ```solidity=339 function reduceFee(uint256 _newFee) external{ require(_msgSender()==_taxWallet); require(_newFee<=_finalBuyTax && _newFee<=_finalSellTax); _finalBuyTax=_newFee; _finalSellTax=_newFee; } ```