CVE-2025-10300: Fmeaddons Topbar

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

The TopBar plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.0.0. This is due to missing or incorrect nonce validation on the fme_nb_topbar_save_settings() function. 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

• Fmeaddons Topbar: up to and including 1.0.0

Published 2025-10-15. Last modified 2026-10-08.