Overview
Imunify360 is a comprehensive security platform for Linux web servers, built by CloudLinux. Rather than being a standalone WAF, it integrates six layers of protection: a network firewall backed by global threat intelligence, WebShield for bot detection and DDoS mitigation, a ModSecurity-based WAF with proprietary managed rules, real-time malware scanning, a proactive PHP defense engine, and intrusion detection/prevention.
The WAF component uses ModSecurity under the hood but with Imunify's own curated ruleset, maintained and updated by their security team. This means hosting providers and site owners get WAF protection without needing to manage ModSecurity rules themselves. The WAF provides virtual patching for known vulnerabilities in WordPress plugins, themes, and other popular CMS software, blocking exploit attempts before official patches are available.
What sets Imunify360 apart from standalone WAFs is the Proactive Defense engine. It analyzes PHP script behavior at runtime, catching zero-day attacks that signature-based detection would miss. Combined with automated malware cleanup and compromised password resets, it handles the full lifecycle from prevention through remediation.
Imunify360 integrates with cPanel, Plesk, and DirectAdmin, and also runs standalone on Linux servers. A WordPress plugin provides site-level visibility into security status. The platform feeds a global threat intelligence network spanning 57 million+ domains, where an attack blocked on one server protects all others in the network.
Ratings Breakdown
Key Features
Managed WAF Rules
ModSecurity-based WAF with proprietary rules maintained by Imunify's security team. Automatically updated to cover new WordPress plugin vulnerabilities, CMS exploits, and emerging attack patterns.
Proactive Defense
Real-time PHP script behavior analysis that detects and blocks malicious activity during execution. Catches zero-day attacks that signature-based WAFs miss entirely.
Virtual Patching
Blocks exploit attempts against known vulnerabilities in WordPress plugins, themes, and CMS software before official patches are released or applied.
WebShield
Reverse proxy layer that filters bot traffic and mitigates DDoS attacks using invisible JavaScript challenges instead of traditional CAPTCHAs.
Automated Malware Cleanup
Detects and removes malicious code from files automatically, preserving the original file integrity. Includes database scanning for CMS infections.
Global Threat Intelligence
Feeds from 57M+ protected domains. An attack blocked on one server instantly protects all other Imunify-protected servers worldwide.
WordPress Plugin
Dedicated WordPress plugin providing site-level security dashboard, scan results, proactive defense status, and malware details directly in wp-admin.
Compromised Password Reset
Automatically forces password resets when it detects that cPanel or WordPress credentials were used in an attack, breaking reinfection cycles.
Pros & Cons
Pros
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Fully managed WAF rules
No rule writing or tuning needed. Imunify's security team handles WAF rule updates based on current threat intelligence.
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Goes beyond WAF
Six integrated security layers mean you get firewall, WAF, malware scanning, PHP runtime defense, and IDS/IPS in one package.
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WordPress-aware protection
Virtual patching for WordPress plugin vulnerabilities, WordPress-specific malware scanning, and a dedicated WordPress admin plugin.
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Low operational overhead
Automated malware cleanup, password resets, and rule updates reduce support tickets and manual security work significantly.
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Affordable for hosting providers
At $12-45/mo per server regardless of traffic volume, it is significantly cheaper than per-request cloud WAFs for high-traffic servers.
Cons
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Linux-only
No Windows, no macOS. Requires a Linux server with a supported distribution and optionally a control panel (cPanel, Plesk, DirectAdmin).
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Not a standalone WAF
You cannot buy just the WAF component. You get the full security suite or nothing. Overkill if you only need request filtering.
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Hosting ecosystem lock-in
Designed for shared hosting environments. Not suited for Kubernetes, serverless, or cloud-native architectures.
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No cloud proxy mode
Does not sit in front of your server like Cloudflare or Sucuri. Traffic must reach your server before Imunify can inspect it.
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Closed source
Proprietary software with no visibility into rule logic or detection internals. You trust their team to get it right.
Pricing
Pricing model: Per-server subscription, tiered by number of hosting accounts
Single User
Full security suite for a server with 1 hosting account
- All 6 security layers
- Managed WAF rules
- Proactive Defense
- Automated malware cleanup
- 24/7 support
Up to 30 Users
For shared hosting servers with up to 30 accounts
- All Single User features
- Multi-account support
- CloudAV for reduced CPU usage
- WordPress plugin
Up to 250 Users
For larger shared hosting environments
- All features included
- Scales to 250 hosting accounts
- Fleet management CLI
Unlimited
Unlimited hosting accounts per server
- All features included
- Unlimited accounts
- Priority support
- Centralized monitoring dashboard
Our Verdict
CVE Coverage
Imunify360 can detect and block attacks matching 82K+ known CVEs based on its supported rule sets.
Coverage by Attack Type
Latest Blockable CVEs
| CVE | Severity |
|---|---|
| CVE-2026-2072 | UNKNOWN |
| CVE-2026-1166 | UNKNOWN |
| CVE-2026-4784 | HIGH |
| CVE-2026-4766 | MEDIUM |
| CVE-2026-4783 | MEDIUM |
| CVE-2026-4781 | MEDIUM |
| CVE-2026-4780 | MEDIUM |
| CVE-2026-4779 | MEDIUM |
| CVE-2026-4778 | MEDIUM |
| CVE-2026-4777 | MEDIUM |
Frequently Asked Questions
Is Imunify360 a WAF?
Does Imunify360 work with WordPress?
How does Imunify360 compare to Wordfence?
Can I use Imunify360 with Cloudflare?
Ready to try Imunify360?
Visit the website to learn more or request a demo.