CVE-2025-14533: Hwk-Fr Advanced Custom Fields: Extended

Critical severity, CVSS 9.8. EPSS: 1.5% chance of exploitation in the next 30 days.

The Advanced Custom Fields: Extended plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 0.9.2.1. This is due to the 'insert_user' function not restricting the roles with which a user can register. This makes it possible for unauthenticated attackers to supply the 'administrator' role during registration and gain administrator access to the site. Note: The vulnerability can only be exploited if 'role' is mapped to the custom field.

Affected products

• Hwk-Fr Advanced Custom Fields: Extended: up to and including 0.9.2.1

Published 2026-01-20. Last modified 2026-06-17.