CVE-2025-12826: Webdevstudios Custom Post Type UI

Medium severity, CVSS 4.8. EPSS: 0.3% chance of exploitation in the next 30 days.

The Custom Post Type UI plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 1.18.0. This is due to the plugin not verifying that a user has the required capability to perform actions in the "cptui_process_post_type" function. This makes it possible for authenticated attackers, with subscriber level access and above, to add, edit, or delete custom post types in limited situations.

Affected products

• Webdevstudios Custom Post Type UI: up to and including 1.18.0

Published 2025-12-04. Last modified 2026-06-17.