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check-ssrf

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Analyzes PHP code for SSRF vulnerabilities. Detects unvalidated URLs, internal network access, DNS rebinding, cloud metadata access, URL parsing bypass attempts.

skills/check-ssrf/SKILL.md

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Aug 16, 2026
License
MIT

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# SSRF (Server-Side Request Forgery) Security Check

Analyze PHP code for SSRF vulnerabilities (OWASP A10:2021).

## Detection Patterns

### 1. User-Controlled URLs

```php
// CRITICAL: Direct URL from user input
$url = $_GET['url'];
$content = file_get_contents($url);

// CRITICAL: Request URL from parameter
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