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

2026-01-08 17:24

Dmitrii Ignatyev

Strategic Overview

Status

Patched in 2.4.1

Affected PluginClearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer

Affected Version<= 2.4.0

CVSS4.3Medium

CVECVE-2025-13749

View all Clearfy Cache – WordPress optimization plugin, Minify HTML, CSS & JS, Defer vulnerabilities

Vulnerability Overview

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.

Technical Analysis

REMEDIATION: Update to version 2.4.1, or a newer patched version --- IDENTIFIER: CWE-352 (Cross-Site Request Forgery (CSRF)) The web application does not, or cannot, sufficiently verify whether a request was intentionally provided by the user who sent the request, which could have originated from an unauthorized actor.

External References

https://www.cve.org/CVERecord?id=CVE-2025-13749 https://www.wordfence.com/threat-intel/vulnerabilities/id/55750dcf-c6ec-4be6-967f-60bf940fa30e

CVSS Vector

4.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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