CVE-2025-14540: Userback

Medium severity, CVSS 4.3. EPSS: 0.2% chance of exploitation in the next 30 days.

The Userback plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the userback_get_json function in all versions up to, and including, 1.0.15. This makes it possible for authenticated attackers, with Subscriber-level access and above, to extract plugin's configuration data including the Userback API access token and site's posts/pages contents, including those that have private and draft status.

Affected products

• Userback Userback: up to and including 1.0.15

Published 2025-12-13. Last modified 2026-06-17.