[Backend] Implement Input Sanitization for User-Generated Content

[ayomideadeniran]

🚀 Feature Overview

Implement content sanitization to prevent XSS and other attacks for all user-generated content fields.

This is a critical, MVP-critical feature designed to prevent malicious script execution.

🛠️ Implementation Requirements

• Build input sanitization system.
• Include comprehensive unit tests with coverage >90%.
• Add thorough documentation and educational comments.
• Integrate with existing security infrastructure.

🔧 Technical Specifications

• Built with Node.js and Express.
• Use DOMPurify for sanitization.
• Apply to all user-generated content.
• Follow security best practices.

✅ Acceptance Criteria

• Sanitization prevents XSS attacks.
• All user-generated content is processed.
• All unit tests pass with full coverage.
• Documentation is complete and educational.

🎓 Difficulty Level

Intermediate - Requires understanding of XSS prevention and Node.js development.

⏱️ Timeline

ETA: 1 day

[ObaniIsola]

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

Hiii, Good Morning Ser, I love your product, and I would love to solve this issue and solve it accurately.

Thank you for granting my request.

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

[Francis6-git]

@Francis6-git has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

I would love to work on this.

ℹ️ Repo Maintainers: To accept this application, review their application or assign @Francis6-git to this issue.

[SYLVIANNORUKA]

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

Can I work on this Pls? I will Implement Input Sanitization for User-Generated Content

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

[fridaypetra55-afk]

@fridaypetra55-afk has applied to work on this issue as part of the Stellar Wave Program's 5th wave.

Hello Maintainer, I'd like to claim this issue. I enjoy working on problems like this and I have the experience to implement it well. I'll keep you updated on progress and flag any blockers early

ℹ️ Repo Maintainers: To accept this application, review their application or assign @fridaypetra55-afk to this issue.

[drips-wave]

Congratulations, @fridaypetra55-afk! 🎉 Your application was accepted by the repo's maintainers, and the issue is due on June 2, 2026.

🧑‍💻 @fridaypetra55-afk: 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 🌊