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auditing-php-applications

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Audit PHP web application source for critical vulnerabilities using PHP's specific sink and footgun catalog — object injection via unserialize and phar:// POP chains, type-juggling and magic-hash auth bypass, LFI/RFI through php:// and phar:// wrappers, dynamic includes and extract()/superglobal trust, SQL injection in string-built and legacy mysql_* queries, command-execution sinks, and SSRF. Use when reviewing a PHP codebase, a WordPress/Magento/Laravel app, or a plugin for exploitable bugs. Defers general audit methodology to auditing-code-for-vulnerabilities.

secskills-core/skills/auditing-php-applications/SKILL.md

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# Auditing PHP Applications

This is the PHP-specific layer on top of `auditing-code-for-vulnerabilities`.
Take the methodology from that skill — context → attack surface → bug-class
hunt → variant analysis → the four-question verification gate — and apply the
PHP sink catalog below to it. This skill exists because PHP has footguns no
language-agnostic methodology carries: features that turn a file read into
remote code execution, and comparison rules that turn `==` into an auth bypass.

The collection deliberately has no per-language audit skills except this one.
PHP earns the exception because it dominates the legacy-web and
WordPress/Magento space where critical bugs actually live, and because its
dynamic features fail in ways a reviewer must be primed for specifically.
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