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check-path-traversal

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Analyzes PHP code for path traversal vulnerabilities. Detects directory traversal, file inclusion with user input, missing path validation, symlink attacks.

skills/check-path-traversal/SKILL.md

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MIT

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# Path Traversal Security Check

Analyze PHP code for path/directory traversal vulnerabilities (OWASP A01:2021).

## Detection Patterns

### 1. File Operations with User Input

```php
// CRITICAL: Direct path from user
$content = file_get_contents($_GET['file']);
$content = file_get_contents('/uploads/' . $_GET['filename']);

// CRITICAL: File reading
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