Basic hardening: secure headers, login honeypot, user enumeration blocking, generic login errors, rate limiting, and more.
As of April 2026, Security Hardener is a WordPress headers plugin with 100 active installations and a 0/5 rating0. It has been downloaded 891 times in total. Requires WordPress 6.9+ and PHP 8.2+. Available on WordPress.org since 2025. Actively maintained — updated within the last month. Top alternative: Headers Security Advanced & HSTS WP.
Security Hardener applies WordPress security best practices based on the WordPress Advanced Administration / Security / Hardening documentation and widely accepted hardening measures. It uses WordPress core functions and follows best practices without modifying core files.
File Security:
* Disable file editor in WordPress admin
* Optionally disable all file modifications (blocks updates – use with caution)
XML-RPC Protection:
* Disable XML-RPC completely (enabled by default)
* Remove pingback methods when XML-RPC is enabled
Pingback Protection:
* Disable self-pingbacks
* Remove X-Pingback header
* Block incoming pingbacks
User Enumeration Protection:
* Block /?author=N queries (returns 404)
* Secure REST API user endpoints (require authentication)
* Remove users from XM…
| WordPress | 6.9+ requiredTested up to 6.9.4 |
| PHP | 8.2+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.