CVE-2025-14392 MEDIUM

CVE-2025-14392: Simple Theme Changer <= 1.0. - Missing Authorization to Plugin Settings Update via AJAX Actions

Vendor Darendev
Product Simple Theme Changer
Weakness CWE-862 · Missing authorization
Published December 12, 2025
Last update April 8, 2026

CVSS base score

4.3/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality None
Integrity Low

CVSS vector

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

What the vulnerability does

01Description

The Simple Theme Changer plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the user_theme_admin, display_method_admin, and set_change_theme_button_name actions actions in all versions up to, and including, 1.0. This makes it possible for authenticated attackers, with subscriber-level access and above, to modify the plugin's settings.

Explanation of Vulnerability in Simple Terms

02Summary

Simple Theme Changer versions 1.0 and earlier lack proper authorization checks on theme modification functions. A logged-in user with low privileges can change site themes without appropriate permission validation. This allows unauthorized theme alterations that could deface the site or inject malicious content through theme files.

What an attacker can do

03Attacker Capabilities

Change the site's active theme without proper authorization.

Potential impact on your site

04Site Impact

Unauthorized users can alter your site's appearance or inject malicious code via theme modification.

Conditions required to exploit

05Prerequisites

Attacker must have a low-privilege user account on the site.

Key dates

06Disclosure timeline

December 12, 2025 CVE published
April 8, 2026 Record updated