Email change CSRF
An AI added this Flask endpoint to let users change their account email. It passed the happy-path test. A security reviewer flags it. What's wrong, and what's the attack?
Implement
classify_mutating_request(method: str, has_session: bool, csrf_token: str, expected_token: str) → strExamples
in
["POST",true,"tok_abc","tok_abc"]out"200_ok"in
["POST",true,"","tok_abc"]out"403_csrf_failed"in
["POST",false,"tok_abc","tok_abc"]out"401_unauthenticated"What a strong answer looks like
Treat the AI’s output as a draft to verify, not an answer to trust. Name the specific flaw and the input that triggers it, say how you’d catch it (tests, edge cases, reading critically), and how you’d re-prompt or decompose to get it right.
0:00 of about 15 min
Vibe & agentic: describe the solution in plain language (or narrate it) and the coach grades your approach.
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.
Run or narrate your approach, then ask the coach.