🔐 CVE Alert

CVE-2026-4091

MEDIUM 6.1

OPEN-BRAIN <= 0.5.0 - Cross-Site Request Forgery

CVSS Score
6.1
EPSS Score
0.0%
EPSS Percentile
7th

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.

CWE CWE-352
Vendor faridsaniee
Product open-brain
Published Apr 15, 2026
Last Updated Apr 15, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability

Affected Versions

faridsaniee / OPEN-BRAIN
0 ≤ 0.5.0

References

NVD ↗ CVE.org ↗ EPSS Data ↗
wordfence.com: https://www.wordfence.com/threat-intel/vulnerabilities/id/93df6480-9bb1-4f5d-bb39-ff1a01d739cf?source=cve plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L272 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L272 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L252 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L252 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L253 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L253 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L237 plugins.trac.wordpress.org: https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L237

Credits

Muhammad Nur Ibnu Hubab