◉ Official answer
🎯 Townsquare Community Board (Web · Level 2 · +220 XP)
A full mock community message board application running inside an isolated sandbox. It includes thread discussions, post formatting, user profiles, moderator logs, and session management. Identify stored XSS in topic creation and elevate your session privileges to recover the moderator flag and submit a hardening report.
Learning & Defense Goals:
- Explore the Townsquare community board and thread streams
- Identify stored XSS in topic message formatting and preview
- Manipulate the client session cookie to gain moderator capabilities
- Capture the root moderation flag and author a comprehensive hardening report
🎯 Launch Isolated Sandbox on Cyber Lab →
Community Discussion Rules: Discuss methodologies, discovery tactics, and architectural hardening. Please do not post raw flags directly. Share your production remediation code!