NinjaFirewall (WP Edition) – Advanced Security Plugin and Firewall

85 Quality Score

Active Installs

23/30

At roughly 100,000 active installs, NinjaFirewall has a smaller user base than mainstream alternatives like Wordfence (5 million) or Jetpack (3 million), though it punches well above its weight in technical circles.

Update Freshness

25/25

The plugin was updated on 2026-07-13 and is confirmed compatible with WordPress 7.0.1, indicating a developer who is actively maintaining it against the latest core release.

User Rating

15/15

A 98/100 rating across 220 reviews is exceptional and suggests a very satisfied, if niche, user base.

Support Health

8/15

71.4% of support threads are resolved, which is acceptable but noticeably lower than the near-perfect ratios seen from larger plugins like Wordfence or Jetpack, partly because there are only 14 total threads to judge from.

WP Compatibility

15/15

Tested up to WordPress 7.0.1 with PHP 7.1 minimum and no compatibility flags, scoring full marks on this dimension.

Scores higher than 95% of indexed plugins

About

A true Web Application Firewall to protect and secure WordPress.

Active Installs 100k+

Rating ★★★★½ 4.9/5

Last Updated 2026-09-22 9:42am GMT

Requires WordPress 4.9+

Tested Up To 7.1.2

Requires PHP 7.1+

Security History

1 known vulnerability, all patched

1 Medium

Most recent: May 30, 2021

View details ▸

What It Does

NinjaFirewall (WP Edition) is a true Web Application Firewall that runs as a standalone PHP-level firewall in front of WordPress, blocking malicious traffic before it reaches core, plugins, and themes. It performs real-time request inspection, malware scanning of the file system and database, and supports centralized management for multisite and managed WordPress hosts. In practice it behaves more like a perimeter defence layer than a typical plugin.

Who It's For

This plugin is best suited to administrators of high-value WordPress sites, hosting providers, and security-conscious developers who want server-grade filtering independent of caching or hosting stack. It is a strong choice for agencies managing many client sites or anyone uncomfortable relying solely on perimeter firewalls from their host. Beginners who only need basic login hardening will likely find its configuration surface overkill.

Who Should Skip It

If you only need simple brute-force protection, SSL enforcement, or a lightweight login limiter, NinjaFirewall is heavier than necessary. Users on managed hosts that already provide a strong external WAF (such as Cloudflare, Sucuri, or Kinsta's built-in stack) will get little incremental value.

The Bottom Line

NinjaFirewall scores 87.81/100 and earns its reputation as one of the most technically capable WAFs available for WordPress, particularly thanks to its PHP-front-end design and strong maintenance. It is not the most popular option and its support thread volume is low, so users who prioritize community size or guided troubleshooting may want Wordfence instead. For administrators who genuinely need a layered firewall and are comfortable with deeper configuration, it remains a top-tier pick.

Related Plugins

Really Simple Security 99/100

Pick this if your main concern is HTTPS migration and lightweight hardening rather than a deep WAF.

Wordfence Security 97/100

Choose Wordfence if you want a more popular plugin with a larger community, more frequent scans, and a built-in IP blocklist, accepting that it operates more inside WordPress than at the PHP front-line.

Jetpack 93/100

Go with Jetpack if you want security bundled with backups, performance, and growth tools in a single Automattic-supported package.

All-In-One Security (AIOS) 91/100

Select AIOS if you prefer a free, beginner-friendly security suite with login protection and a basic .htaccess firewall instead of NinjaFirewall's PHP-level filtering.

Safe SVG 89/100

This is not a direct competitor; it only handles SVG sanitization, so use it alongside NinjaFirewall rather than instead of it.