GLM 5.3 Prompt for API Security Testing Sparks Debate

MicahBerkley · x · 2026-10-17

A user shared a prompt for GLM 5.3 that casts the model as an API security tester, instructing it to combine SQLi, XSS, BOLA, IDOR, CSRF, SSRF, RCE, PrivEsc, SSTI and XXE techniques to review API calls and find exploitable opportunities. The author calls it the "most dangerous" prompt they have written and anticipates criticism, saying they don't mind.

The post is essentially a demonstration of using LLMs for API security auditing and red-teaming, touching on model guardrails and abuse boundaries.

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