Security Audit Report for PopDEX's Dex Topup

The target of this audit is the private code repository of Dex Topup of PopDEX. Dex Topup provides deterministic, permissionless deposit addresses for bridging ERC20 tokens through the official TokenBridge. Each user’s proxy address can be precomputed before deployment, allowing tokens to be sent there in advance. Once funded, anyone can call the factory contract to deploy the proxy and forward the tokens to the TokenBridge, with the receiver fixed to the original user. The module acts only as a lightweight forwarding layer and does not maintain balances or custody funds long term.

Please refer to the report for the detailed audit scope.

Our audit methodology employs automated vulnerability scans, manual verification, and business logic analysis to uncover potential security issues coupled with gas and code quality optimization recommendations.

In summary, we did not find any critical issues within the audited codebase. However, we have identified some non-critical issues that should be addressed. Additionally, we have put forth recommendations and notes that should be taken into consideration. It is important to note that the scope of our audit was strictly limited to the specific code versions mentioned in the report. Any updates made subsequent to our review would require a re-evaluation.