W3 Total Cache, PSC-2026-64614

PSC, Research URL: PSC-2026-64614
Home page URL: Security reports for W3 Total Cache
Application: W3 Total Cache
Published on: Feb 23, 2026
Research Description: Caching and performance optimization plugins can dramatically improve page speed, but they also expand the security footprint because they sit between dynamic application logic and static delivery. A cache can unintentionally store and serve private content, expose sensitive headers or debug artifacts, or create integrity issues when minification and rewrite rules transform how resources are delivered. These plugins also tend to touch high-risk areas like wp-admin configuration, filesystem writes (cache directories, rewrite rules), and external integrations (CDNs, reverse proxies), which means weaknesses frequently translate into data leakage, stored XSS in admin previews, cache poisoning, or denial-of-service conditions. W3 Total Cache version 2.9.1 has successfully completed the CleanTalk Plugin Security Certification process and received PSC-2026-64614, confirming that the plugin was reviewed from a secure code perspective with attention to the most common exploitation paths for caching and optimization plugins.
Affected versions: Min 2.9.4, max 2.9.4.
Status: SAFE & CERTIFIED