CVE-2026-4091
The OPEN-BRAIN plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.5.0. This is due to missing nonce verification on the settings form in the func_page_main() function. This makes it possible for unauthenticated attackers to 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.
Weakness
The OPEN-BRAIN plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 0.5.0. This is due to missing nonce verification on the settings form in the func_page_main() function. This makes it possible for unauthenticated attackers to 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.
References
- https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L237
- https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L252
- https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L253
- https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L272
- https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L237
- https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L252
Find the bug before an attacker does.
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