CVE-2025-10300: TopBar <= 1.0.0 - Cross-Site Request Forgery to Settings Update

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-10-15 · updated 2026-10-08
Weakness: CWE-352

Description

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: through 1.0.0

References

https://plugins.trac.wordpress.org/browser/topbar/trunk/admin/class-fme-nb-topbaradmin.php#L131
https://plugins.trac.wordpress.org/browser/topbar/trunk/admin/class-fme-nb-topbaradmin.php#L38
https://wordpress.org/plugins/topbar/
https://www.wordfence.com/threat-intel/vulnerabilities/id/8e68cb68-45ab-4c2f-a105-1ef01da42453?source=cve

Get alerted when CVE-2025-10300 or the next vulnerability affects your stack