CVE-2025-49342 HIGH

CVE-2025-49342: WordPress Custom Style plugin <= 1.0 - Cross Site Request Forgery (CSRF) vulnerability

Vendor Merzedes
Product Custom Style
Weakness CWE-352 · CSRF
Published December 31, 2025
Last update May 12, 2026

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

Cross-Site Request Forgery (CSRF) vulnerability in merzedes Custom Style custom-style allows Stored XSS.This issue affects Custom Style: from n/a through <= 1.0.

Explanation of Vulnerability in Simple Terms

02Summary

Custom Style versions 1.0 and earlier contain a cross-site request forgery (CSRF) vulnerability. An attacker can craft a malicious webpage that, when visited by a site administrator, performs unwanted actions on the site without the admin's knowledge. The vulnerability requires user interaction—the admin must visit the attacker's page while logged in. Impact is limited to low-severity changes in confidentiality, integrity, and availability.

What an attacker can do

03Attacker Capabilities

Trick a logged-in admin into performing unwanted actions on the site by visiting a malicious webpage.

Potential impact on your site

04Site Impact

An attacker can modify site settings or content if an admin visits a malicious link while logged in.

Conditions required to exploit

05Prerequisites

Admin must visit attacker-controlled webpage while logged into the site.

Key dates

06Disclosure timeline

December 31, 2025 CVE published
May 12, 2026 Record updated

Related vulnerabilities

08Related CVE