[Backend] Conduct security audit on Path Payment Service

[emdevelopa]

Description
This task involves system optimization for the Path Payment Service module.
The goal is to conduct security audit on Path Payment Service to enhance the platform's robustness, security, and developer experience.

Requirements and context

• Must be secure, tested, and documented
• Adhere to the Drips Wave design and engineering standards
• Ensure full test coverage for new logic
• Specifically focused on backend system optimization and security integrity

Suggested execution

Fork the repo and create a branch
git checkout -b feature/be-conduct-security-audit-on-path-payment-service
Implement changes

Review existing implementation in Path Payment Service
Apply changes: Conduct security audit on Path Payment Service
Ensure robust error handling and logging
Test and commit

Run unit and integration tests for Path Payment Service
Cover edge cases and validate security assumptions
Include test output and security notes in the PR
Example commit message
feat(backend): conduct security audit on Path Payment Service

Guidelines

Complexity: High (200 points)
Assignment required before starting
PR description must include: Closes #[issue_id]

[Swayymalcolm99]

@Swayymalcolm99 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hello maintainer, can I take this?

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Swayymalcolm99 to this issue.

[rohan911438]

@rohan911438 has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Would love to work on it

ℹ️ Repo Maintainers: To accept this application, review their application or assign @rohan911438 to this issue.

[drips-wave]

Congratulations, @rohan911438! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @rohan911438: Please resolve the issue such that the repo's maintainers have enough time to review your contribution before the due date. You'll earn Points for completing the issue on-time, which will make you eligible for a share of the Stellar Wave Program's reward pool.

Warning

When opening a PR, please link it to this issue to ensure it gets tracked accurately. Points are awarded when this issue is marked as completed by the maintainer.

🤠 Repo maintainers: Please keep an eye on the contributor's progress and review their work before the due date. You can manage this issue, including adjusting its complexity and points, here.

🌊 Happy Wave 🌊