Summary

Input parameters in the _withdrawTokens function are not fully validated, potentially allowing unexpected behavior or attacks.

Vulnerability Details

While there is a requirement check require(stems.length == amounts.length, "Convert: stems, amounts are diff lengths."), other input parameters such as token, maxTokens, and account are not thoroughly validated. Lack of input validation may lead to unexpected behavior or vulnerabilities.

Impact

Without proper input validation, attackers may exploit the function by providing malicious inputs, leading to unexpected behavior, contract failures, or even security vulnerabilities. For example, incorrect token addresses or manipulated maxTokens values could result in unauthorized access to funds or manipulation of contract states.

Tools Used

Manual

Recommendations

Implement comprehensive input validation for all input parameters to prevent unexpected behavior or vulnerabilities. Validate input parameters to ensure they meet the expected criteria and do not introduce security risks.