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

4.3
Cross-Site Request Forgery (CSRF)
CVE CVE-2025-13749
CVSS 4.3 (Medium)
Publicly Published January 8, 2026
Last Updated January 9, 2026
Researcher Dmitrii Ignatyev - CleanTalk Inc

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.

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Vulnerability Details for Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer

Software Type Plugin
Software Slug clearfy (view on wordpress.org)
Patched? Yes
Remediation Update to version 2.4.1, or a newer patched version
Affected Version
  • <= 2.4.0
Patched Version
  • 2.4.1

Recent vulnerabilities in Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer

# Title CVE ID CVSS Researchers Date
1 Multiple Plugins <= Multiple Versions - Unauthenticated Stored Cross-Site Scripting CVE-2026-3220 7.2 stealthcopter, WPscan April 27, 2026
2 Webcraftic Clearfy – WordPress optimization plugin <= 2.3.1 - Cross-Site Request Forgery to Clear Cache CVE-2024-13338 5.3 Whit Taylor April 11, 2025
3 Webcraftic Clearfy – WordPress optimization plugin <= 2.3.2 - Cross-Site Request Forgery to Plugin Settings Update via 'setup-wbcr_clearfy' CVE-2024-13337 4.3 Whit Taylor April 11, 2025
4 Clearfy Cache <= 2.2.4 - Missing Authorization CVE-2024-43260 4.3 Joshua Chan August 12, 2024
5 Clearfy Cache <= 2.3.2 - Cross-Site Request Forgery CVE-2024-34806 4.3 Dhabaleshwar Das May 13, 2024
6 Clearfy Cache <= 2.0.4 - Reflected Cross-Site Scripting 6.1 WPScanTeam June 14, 2022

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