CVE-2025-13749

Clearfy <= 2.4.0 - Cross-Site Request Forgery to Update Notification Tampering

mediumCross-Site Request Forgery (CSRF)

4.3

CVSS Score

4.3

CVSS Score

medium

Severity

2.4.1

Patched in

Time to patch

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.

CVSS Vector Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

None

Confidentiality

Low

Integrity

None

Availability

Technical Details

Affected versions<=2.4.0

PublishedJanuary 8, 2026

Last updatedJanuary 9, 2026

Affected pluginclearfy

References

https://www.wordfence.com/threat-intel/vulnerabilities/id/55750dcf-c6ec-4be6-967f-60bf940fa30e?source=api-prod

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