Description
The Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 2.4.0. This is due to missing nonce validation on the "wbcr_upm_change_flag" function. This makes it possible for unauthenticated attackers to disable plugin/theme update notifications via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Problem types
CWE-352 Cross-Site Request Forgery (CSRF)
Product status
* (semver)
Timeline
| 2025-11-18: | Discovered |
| 2025-11-26: | Vendor Notified |
| 2026-01-08: | Disclosed |
Credits
Dmitrii Ignatyev
References
www.wordfence.com/...-c6ec-4be6-967f-60bf940fa30e?source=cve
research.cleantalk.org/cve-2025-13749/
plugins.trac.wordpress.org/changeset/3421009/clearfy