Brute-Forceable Airline Reservation API Left Millions of Passenger Records Vulnerable
Timeline & Responsible Disclosure
Initial Contact: Upon discovering this vulnerability on October 15, 2025, I immediately reached out to security contacts at Avelo Airlines via email.
October 16, 2025: The Avelo cybersecurity team responded quickly and professionally. We had productive email exchanges where I detailed the vulnerability, including the lack of last name verification and rate limiting on reservation endpoints.
November 13, 2025: Avelo pushed a fix to production and notified me that...
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