CVE-2025-12412: Top Bar Notification <= 1.12 - Cross-Site Request Forgery to Stored Cross-Site Scripting

Severity: medium (CVSS 6.1 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: 2025-11-04 · updated 2026-10-18
Weakness: CWE-352

Description

The Top Bar Notification plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 1.12. This is due to missing or incorrect nonce validation on th tbn_ajax_add() function. This makes it possible for unauthenticated attackers to update the plugin's settings and inject malicious web scripts via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.

Affected products

josereyev Top Bar Notification: through 1.12

References

https://plugins.trac.wordpress.org/browser/top-bar-notification/tags/1.12/Notification.php#L102
https://plugins.trac.wordpress.org/browser/top-bar-notification/tags/1.12/Notification.php#L75
https://www.wordfence.com/threat-intel/vulnerabilities/id/0856f3bf-da17-44bb-aa30-26f9fb6e22b1?source=cve

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