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hunt-rce

Hunting skill for rce vulnerabilities. Built from 67 public bug bounty reports. Use when hunting rce on any target.

knowledge/Claude-BugHunter/skills/hunt-rce/SKILL.md

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Network or broad shell
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Nov 4, 2026

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Apache-2.0

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## Autonomous Testing Priority

**Content-type is the #1 silent failure mode for command injection.**

Traditional web forms use `Content-Type: application/x-www-form-urlencoded`. If you send a JSON body (`{"host":"127.0.0.1;id"}`) to a form endpoint, the server reads `request.form['host']` and gets nothing — the app executes normally with no injection, returning a plausible 200 response. You get a false negative with no indication anything went wrong.

**Rule:** If the page has an HTML form (`<form method="POST">`), use form-encoding. If the path is `/api/...` or the response is JSON, use JSON.

**Command injection operators to try (in order of prevalence):**
```
value;id        ← Unix semicolon (most common)
value|id        ← pipe
value&&id       ← AND
value$(id)      ← subshell