Security Ninja is a lightweight WordPress security plugin that helps protect your site from common attacks and security mistakes – without turning your dashboard into a cockpit. Web Application Firewall (WAF) (based on the 8G ruleset) to block common malicious requests, plus 50+ security checks, a f
PricingFree downloadThe WordPress.org download is free. Pro versions, add-ons or external services may cost extra.
CompatibilityRequires WordPress 4.7 and PHP 7.4.
SourceWordPress plugins · Nov 10, 2026
01 / Source details
Aboutthistool.
Security Ninja is a lightweight WordPress security plugin that helps protect your site from common attacks and security mistakes – without turning your dashboard into a cockpit.
Web Application Firewall (WAF) (based on the 8G ruleset) to block common malicious requests, plus 50+ security checks, a full vulnerability scanner, and a core integrity scanner to spot risky settings and unexpected file changes.
Upgrade to Pro for Cloud Firewall, malware scanning/cleanup, login brute-force protection and 2FA, export/webhooks, and scheduled scans.
This plugin can be downloaded for free without any paid subscription from the official WordPress repository .
Included for free – Basic Firewall (8G-based) – Blocks common malicious requests and bot noise before it becomes a problem. – 50+ Security Tests – Fast audit of common WordPress security misconfigurations. – Vulnerability Scanner – Highlights known issues in plugins/themes so you can patch faster. – Core Scanner – Detect modified or unexpected files in WordPress core folders. – Basic Events Logger – Logs firewall events and login attempts (successful/failed) . – AI Security Advisor (WordPress 7) – AI-generated audit summaries and guided follow-ups from your scans, using WordPress AI Connectors (you choose the LLM provider). Optional WordPress Abilities let other AI tools on your site read test summaries, attack activity, and your latest saved report.
Pro adds – Cloud Firewall & advanced WAF – Block 600+ million known bad IPs, country blocking, IP management, and stronger firewall controls (free includes the 8G-based firewall). – Advanced Malware Scanner – Detect and clean malicious code and suspicious files. – Login protection & 2FA – Limit failed logins, rename the login URL, and add two-factor authentication. – One-click Fixes – Harden WordPress from the Fixes page (XML-RPC, file editor, headers, and more). – Full Events Logger – Export logs, scheduled email reports, webhooks (e.g. Slack/Discord), and deeper alerting. – Scheduled scans & reporting – Automated security scans and reports.
Key Features
Security Ninja is a lightweight WordPress firewall plugin and security toolkit designed to help you find misconfigurations, block common attacks, and stay ahead of known vulnerabilities – without slowing your site down.
Comprehensive WordPress Security Testing
Security Ninja performs 50+ advanced security tests to identify issues before attackers exploit them. This includes:
Login and password checks – Audits weak passwords and related settings (Pro adds failed-login limits, rename login, and 2FA).
Security Ninja includes a high-performance malware scanner that automatically checks your WordPress core, plugins and themes for:
Malicious scripts and backdoors – Identifies hidden malware and harmful injections.
Trojan and virus detection – Scans for suspicious PHP and JavaScript entries.
One-click malware removal – Instantly quarantine and delete infected files.
WordPress Firewall & Real-Time Threat Protection
Security Ninja includes a basic firewall for free (8G-based) to block common malicious requests. Upgrade to Pro for more advanced WAF controls.
Basic protection (Free) – 8G rules block many common exploit patterns and abusive requests.
Advanced protection (Pro) – Cloud Firewall, country blocking, IP lists, and additional intelligence/automation.
Login brute-force protection (Pro) – Limit failed logins and harden the login flow (not included in the free firewall).
Automatic service whitelisting (Pro)
Cloud Firewall (Pro) whitelists known third-party service IPs so remote maintenance, optimization, and monitoring tools are less likely to be blocked. No manual IP entry is required for these built-in lists.
WP Compress – image optimization and compression service
MonSpark – uptime and website monitoring
Modular DS – remote site management
WPMU DEV – hosting and management platform
Divi Dash – Elegant Themes site management
Fastpixel – optimization service
Broken Link Checker – link checking service
GetTerms – cookie consent scanner (getterms.io)
Optional one-click whitelists (Firewall → IP Management; enable per service): – ManageWP – enabled by default on new installs – WP Rocket – caching and optimization – UptimeRobot – uptime monitoring – Uptimia – uptime monitoring
You can still add your own IPs and CIDR ranges manually on the IP Management screen.
Security Ninja performs scheduled security scans and sends reports directly to your inbox.
Set up daily, weekly, or monthly security scans.
Receive email alerts about vulnerabilities and malware infections.
Analyze detailed reports to keep your website secure.
Block Spam & Malicious Bots Instantly (PRO)
Hackers and spammers use bots to exploit WordPress websites. Security Ninja prevents:
Fake registrations and spam comments – Stops bots from even getting to your site.
Malicious bot attacks – Blocks scripts attempting to hack your site.
Unwanted traffic – Reduces server load by preventing unnecessary bot access.
AI Security Advisor – from scan results to clear next steps (WordPress 7)
Understanding a security scan shouldn’t feel like homework. AI Security Advisor uses your connected LLM (via WordPress 7 AI Connectors ) to turn Security Ninja findings into a readable audit: executive summary, prioritized improvements, and suggested follow-up prompts-not an open-ended chatbot.
Reports draw on Security Tests, the Vulnerability Scanner, Core Scanner, recent firewall/login events, and on Pro sites Malware Scanner results when available. Saved reports stay on your site until you remove them.
What you need AI Security Advisor is included in the free plugin but requires WordPress 7 . You connect the AI/LLM provider yourself under Settings → Connectors in WordPress; Security Ninja does not host or supply API keys.
WordPress Abilities (optional) On WordPress 7, Security Ninja can register read-only Abilities so other AI tools on the same site can fetch a test summary, 7-day attack activity, or your latest saved audit-useful if you use multiple AI integrations. Report generation and follow-ups on the Security Advisor page work independently of this.
Privacy, in everyday language Only non-identifying security context (test results, scan status, event counts-not personal data) is sent to your chosen AI provider to build a report.
If you are not on WordPress 7 yet, you will see a notice on the AI Security Advisor screen; the rest of Security Ninja continues to work as usual.
Join thousands of satisfied users who trust Security Ninja to keep their websites safe. Start protecting your online presence today.
Extensions
MainWP – Manage Security Ninja across many sites from one MainWP Dashboard. Security Ninja on each child site includes MainWP integration built in (no extra plugin on child sites).
Free addon – Security Ninja for MainWP (WordPress.org): view test results and vulnerabilities per site, trigger remote security scans, and sync fresh results. Works with child sites on free or Pro Security Ninja; data shown matches what each site’s installed version provides.
Premium addon – Adds a combined events log across all connected sites, search/filter for security events, and remote white-label control on Pro child sites. Requires Security Ninja Pro on child sites for log and white-label features. Available from your WP Security Ninja account ; see MainWP integration for details.
Security Ninja Pro adds Cloud Firewall (600+ million known bad IPs), country blocking, advanced WAF controls, Malware Scanner, login protection (failed-login limits, rename login, 2FA), One-click Fixes, full Events Logger (export, webhooks, scheduled reports), and scheduled scans. The free plugin already includes the 8G firewall, 50+ secu
02 / Source details
Gettingstarted.
Installing from WordPress
01Open WordPress admin, go to Plugins, click Add New
02Enter “Security Ninja” in search and hit Enter
03Plugin will show up as the first on the list, click “Install Now”
04Activate & go to Tools – Security Ninja to make your site more secure
Installing Manually
05Download the plugin.
06Unzip it and upload to wp-content/plugin/
07Open WordPress admin – Plugins and click “Activate” next to the plugin
08Activate & go to Security Ninja to make your site more secure
03 / Source details
Frequently asked questions.
Does the free version include a WordPress firewall (WAF)?
Yes. Security Ninja includes a basic Web Application Firewall (WAF) for free , based on the 8G ruleset. It blocks common malicious requests and reduces bot noise.
Does Security Ninja protect against brute force attacks and login attempts?
Pro includes login brute-force protection (failed-login limits), rename login, and 2FA. The free version records login attempts (successful/failed) in the Events Logger and runs security tests that check password strength-it does not block repeated failed logins on its own.
Does Security Ninja include a WordPress vulnerability scanner?
Yes. The Vulnerability Scanner is fully available in the free version and helps you identify known vulnerabilities in plugins/themes so you can patch quickly.
Who is this plugin for?
Site owners, agencies, and developers who want a lightweight WordPress security plugin to harden sites and catch problems early.
Will this plugin slow down my site?
In normal operation, no. Some scans can temporarily use more resources while they run.
What changes will Security Ninja make to my site?
Security Ninja runs checks and shows recommendations. Some Pro features can add active protection layers (firewall/WAF controls, login protection), which you can configure.
What if I encounter issues with the plugin?
While we strive for universal compatibility, if you face any issues, our support team is ready to assist. Visit our support forum to open a new thread, and we’ll help you as soon as possible.
FinderPress Media Auditor helps site administrators scan for broken images, missing Media Library files, unreachable media URLs, and other media issues across WordPress content. Use it to audit images, video, audio, PDFs, featured images, and attachment files without sending scan data to an external
The Accepted Payment Methods plugin is a straightforward, lightweight solution that enhances your website by displaying visually appealing icons of the payment methods you accept. This plugin is ideal for a variety of websites, including e-commerce platforms, service-oriented websites, and informati
