Wordpress Security Validation

This teaches WordPress's three-layer security model: sanitize inputs, validate business logic, escape outputs. It's aimed at intermediate to advanced developers working on WordPress 6.7+ with PHP 8.3+ who need to prevent XSS, CSRF, and SQL injection vulnerabilities. The approach is practical and opinionated, which is exactly what you want for security. With 242 installs and clean audit passes from major security tools, it's seeing real adoption. If you're building WordPress plugins or themes and haven't internalized the "sanitize, validate, escape" pattern, this will get you there faster than piecing together documentation.

skills.sh installs: 618
GitHub stars: 79
last updated: Aug 21, 2026

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Install

$ npx -y skills add bobmatnyc/claude-mpm-skills --skill wordpress-security-validation --agent claude-code

Installs into .claude/skills of the current project.

Files

WordPress Security & Data Validation

Version: 1.1.0 Target: WordPress 6.7+ | PHP 8.3+ Skill Level: Intermediate to Advanced

Overview

Security is not optional in WordPress development—it's fundamental. This skill teaches the three-layer security model that prevents XSS, CSRF, SQL injection, and other common web vulnerabilities through proper input sanitization, business logic validation, and output escaping.

The Golden Rule: "Sanitize on input, validate for logic, escape on output."

Why This Matters

Every year, thousands of WordPress sites are compromised due to security vulnerabilities in plugins and themes. Most of these attacks exploit one of three weaknesses:

XSS (Cross-Site Scripting): Malicious JavaScript injected through unsanitized output
CSRF (Cross-Site Request Forgery): Unauthorized actions performed on behalf of authenticated users
SQL Injection: Database manipulation through unsanitized database queries

This skill provides complete, production-ready patterns for preventing all three attack vectors.