Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer: Cross-site request forgery
Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer is affected by cross-site request forgery. The vulnerable path is reachable without authentication. Exploitation relies on a signed-in privileged user submitting an attacker-controlled request.
- Component
- Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer
- Affected
- See vendor advisory
- Safe version
- See mitigation notes
- Published
- Jan 09, 2026
This CVE was published Jan 09, 2026 and is one of 1 known issue for this plugin.
Update, patch or deactivate.
Update Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer to a release outside the affected range, or disable and remove it until a fixed version is available.
No confirmed safe version is listed. Consider a vendor-supported patch or temporarily restricting the affected functionality while you assess the risk.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical 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.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N