Custom CSS, JS & PHP <= 2.4.1 - Cross-Site Request Forgery to Remote Code Exectuiron

2025-04-16 00:00

Nguyen Xuan Chien

Strategic Overview

Status

Patched in 2.4.2

Affected PluginCustom CSS, JS & PHP

Affected Version<= 2.4.1

CVSS8.8High

CVECVE-2025-39601

View all Custom CSS, JS & PHP vulnerabilities

Vulnerability Overview

The Custom CSS, JS & PHP plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 2.4.1. This is due to missing or incorrect nonce validation on the save_options() function. This makes it possible for unauthenticated attackers to inject arbitrary code 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 2.4.2, 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-2025-39601 https://www.wordfence.com/threat-intel/vulnerabilities/id/5fd0971e-7749-4970-ad39-d0d64a9f1d90

CVSS Vector

8.8

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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