CVE-2026-4091
OPEN-BRAIN <= 0.5.0 - Cross-Site Request Forgery
Vexday Risk Score
13Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS 6.1EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
15 Apr 2026Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Affected products
faridsaniee · OPEN-BRAINReferences
https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L237https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L252https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L253https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L272https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L237https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L252https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L253https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L272https://www.wordfence.com/threat-intel/vulnerabilities/id/93df6480-9bb1-4f5d-bb39-ff1a01d739cf?source=cve