How to Prevent XSS in WordPress: Sanitization and Escaping Functions Guide
Maps every WordPress esc_*, wp_kses_*, and sanitize_* function to its exact context, with the 'sanitize on input, escape on output' rule that eliminates XSS.
Maps every WordPress esc_*, wp_kses_*, and sanitize_* function to its exact context, with the 'sanitize on input, escape on output' rule that eliminates XSS.
How WordPress hook priority numbers work, how to remove object method and closure callbacks, and runtime tools like doing_action(), did_action(), and $wp_filter inspection.
WordPress .htaccess optimization covering Gzip compression with mod_deflate, browser caching via mod_expires, ETag removal, security rules, hotlink protection, and XML-RPC blocking.
OPcache configuration guide for WordPress covering memory_consumption, max_accelerated_files, revalidate_freq, JIT settings, and how to verify hit rate on production.
Step-by-step WordPress malware cleanup checklist covering core file verification, database injection scans, hidden admin detection, cron backdoors, and post-cleanup hardening.
Every WordPress database query that concatenates user input without $wpdb->prepare() is a ticking time bomb. This guide covers every prepare() pattern in production code.