Cache management integrations connect WordPress publishing events to server cache purges and deployment specific routing rules. Nginx Helper version 2.4.1 has successfully completed the CleanTalk Plugin Security Certification process and received PSC-2026-65713. The review focused on cache purge permissions, purge settings, URL handling, publishing events, Redis integration, and dashboard output.
| Name of | Nginx Helper |
| Version | 2.4.1 |
| Active installations | 200,000+ |
| Description | Adds configurable cache purging for supported Nginx FastCGI, proxy cache, and Redis page cache setups, with additional Nginx and WordPress multisite integration features. |
| Security | Successfully tested for: SQL Injection (SQLi) Cross-Site Scripting (XSS) – Stored and Reflected Cross-Site Request Forgery (CSRF) Authentication Vulnerabilities Authentication Bypass Exploits Privilege Escalation Buffer Overflow Denial-of-Service (DoS) vectors Data Leakage Vulnerabilities Insecure Dependency Usage Remote Code Execution (RCE) Risks Unauthorized File Access Insufficient Injection Protection Information Disclosure via Misconfigured Endpoints |
| CleanTalk Certification | Awarded PSC-2026-65713 through the CleanTalk Plugin Security Certification program for version 2.4.1. |
| Additional Information | Match purge settings to the installed Nginx or Redis cache configuration and test cache invalidation after content updates. Limit manual purge access to trusted administrators. |
| Plugin Security Certification by CleanTalk |  |
| Logo of the plugin |  |
PSC by CleantalkMake security review part of your plugin development process and give WordPress site owners a clear certification reference.
Key Features
Nginx Helper supports cache purging for server setups using the relevant Nginx purge modules and for Redis page caching through the Nginx srcache module. Administrators can configure when cached pages should be cleared as content changes. The plugin also documents permalink cleanup and Nginx map support for WordPress multisite. These features depend on the matching server configuration being present.
Security Assurance
The certification examined administrative access to purge options, request verification for cache actions, and the handling of values used to select cached URLs. Publishing events and supported cache integrations were part of the review, together with settings output. Server configuration remains an operational requirement for the corresponding Nginx features.
The plugin has been successfully tested for:
✅ Information Leakage Vulnerabilities
✅ SQL Injection Vulnerabilities
✅ Cross-Site Scripting (XSS) Attacks
✅ Cross-Site Request Forgery (CSRF) Attacks
✅ Authentication and Authentication Bypass Vulnerabilities
✅ Privilege Escalation Vulnerabilities
✅ Buffer Overflow Vulnerabilities
✅ Denial-of-Service (DoS) Vulnerabilities
✅ Data Leakage Vulnerabilities
✅ Insecure Dependencies
✅ Code Execution Vulnerabilities
✅ File Unauthorized Access Vulnerabilities
✅ Insufficient Injection Protection
Conclusion
Nginx Helper version 2.4.1 receives PSC-2026-65713 for the reviewed WordPress cache management paths. Its permissions, configuration input, purge requests, and publishing hooks form the core of the certification scope. Maintain the matching server modules and verify that routine content changes invalidate the expected cached pages.
Note: The date and certification information may change over time. It is advisable to verify the latest details on the plugin developer’s website.
