◉ Official answer
🎯 Booking Engine (General · Level 1 · +50 XP)
A hotel reservation platform processes room bookings in non-atomic steps, permitting race condition double-bookings and client-side price modification.
Learning & Defense Goals:
🎯 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!