Summary

The KittyCoin contract lacks event emissions for critical functions such as mint and burn. Emitting events is considered a standard best practice in Solidity to ensure transparency and traceability of state changes.

Vulnerability Details

• Location: Within the mint and burn functions.

• Description: The contract performs minting and burning of tokens without emitting any events. This can make it difficult to track these state changes, complicating audits and reducing transparency for users and developers.

Impact

• Severity: Low

• Effect: This issue primarily affects the monitoring and auditability of the contract rather than its core functionality. It can hinder effective tracking and logging of critical state changes.

Tools Used

• Manual code review

Recommendations

Add event declarations and emit the appropriate events in the mint and burn functions.