$1,500 AI System Prompt Leak: Using This Burp Suite Configuration
A security researcher earned a $1,500 bounty by discovering that a third-party domain was leaking a company's AI system prompts and internal employee data. The vulnerability was identified when the researcher temporarily disabled Burp Suite's scope filter, revealing an out-of-scope API request that standard fuzzing tools would have missed. The incident highlights the importance of reviewing all HTTP traffic, including third-party domains, to uncover hidden misconfigurations.
- ▪The researcher received a $1,500 bug bounty for exposing AI model system prompts and internal employee emails via a third-party endpoint.
- ▪The vulnerability was found by toggling off the 'Show only in-scope items' filter in Burp Suite to view out-of-scope traffic.
- ▪The leaked data was transmitted via a Server-Sent Events (SSE) response from an endpoint containing an MD5 hash and an incomplete JWT.
- ▪The discovery occurred while the researcher was testing for Blind XSS, demonstrating that manual review of all traffic can reveal issues automated tools miss.
Hacker News (AI / LLM) files mainly under ai. We currently carry 5,269 of its stories.
Story provenance
Source · retrieval · rights · ranking — open for full record
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Story provenance
Attribution is not the same as permission. This drawer separates discovery metadata, excerpts, WeSearch-generated summaries, reuse status, and whether the publisher receives the visit. Nothing here claims a legal grant the publisher has not made.
Record
| Original publisher | Medium |
| Canonical URL | https://medium.com/@tinopreter/1-500-ai-system-prompt-leak-using-this-burp-suite-configuration-e1cb6ab27dc5 |
| Publication time | Thu, 17 Sep 2026 04:19:41 +0000 |
| Retrieval time | 2026-09-17T04:23:41.673Z |
| Last seen | 2026-09-17T04:23:41.673Z |
| Headline source | Publisher (no WeSearch rewrite) |
| Excerpt source | publisher body |
| Excerpt method | First ~120 words (~800 chars) of extracted publisher body, fair-use limited. |
| Summary | WeSearch · cerebras-chat (WeSearch summarizer) |
| Summary source text | contentText |
| Citation coverage | Summary is a WeSearch-generated derivative; primary citation is the original publisher URL. |
| Cluster | _q_anxT3e8Tx · 1 stories |
| Cluster logic | Grouped by semantic title/content similarity across sources within a rolling window. Same-publisher template collisions are excluded from coverage comparison. |
| Ranking reason | Story pages are not engagement-ranked. Hub feeds use recency, with optional source-diversified chronological ordering (cap consecutive stories per source). No personalized ranking. |
| Publisher visit | Yes — open original |
| Substitutes article? | No — link-out required for full text |
Rights status (four layers)
WeSearch handling by dimension
| Indexing | May the item be indexed (stored, ranked, made findable)? | Allowed |
| Snippet | May a short excerpt of the publisher's text be shown? | Allowed |
| AI summary | May WeSearch generate its own short summary of the article? | Limited |
| Retrieval / RAG | May the content be exposed for third-party retrieval-augmented generation? | Not asserted |
| Model training | May the content be used to train AI models? | Not asserted |
| Commercial reuse | May the content be reused commercially? | Not permitted |
Basis: Derived from the published RSS/Atom feed. Contact: [email protected]. Reviewed: 2026-07-24.
Opening excerpt (first ~120 words) tap to expand
Bug BountySystem PromptAIHackeroneBurpsuite$1,500 AI System Prompt Leak: Using this Burp Suite Configurationtinopreter5 min read·Jul 30, 2026--5ListenShareAkwaaba! guys. I’ve finally got around to putting this one together. As usual, some of my good works $1,500 Email Verification Bypass and How to Leak OTP code to bypass 2FA. Let’s goo!‼️ Disclaimer:I’ve changed specific details about the application in this write-up for confidentiality. Even the screenshots shown are from a different, similar application that doesn’t have a bug bounty program — they’re only used for illustration. Also, all API endpoints mentioned have been altered to avoid revealing the actual program.Cowboy bepop==Skip this==I’ve had this draft sitting in my backlog for a while.
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Excerpt limited to ~120 words for fair-use compliance. The full article is at Medium.
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