CVE-2025-14391: Simple Theme Changer <= 1.0 - Cross-Site Request Forgery to Arbitrary Theme Switcher Configuration Update

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.1% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-12-12 · updated 2026-10-07
Weakness: CWE-352

Description

The Simple Theme Changer plugin for WordPress is vulnerable to Cross-Site Request Forgery in versions up to, and including, 1.0. This is due to missing or incorrect nonce validation. This makes it possible for unauthenticated attackers to update the plugin's settings via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

darendev Simple Theme Changer: through 1.0

References

https://plugins.trac.wordpress.org/browser/simple-theme-changer/tags/1.0/class_theme_changer.php#L262
https://www.wordfence.com/threat-intel/vulnerabilities/id/efa9b44d-8b6c-4a11-82af-cecc2c202024?source=cve

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