VulnerabilityDeferred
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.
MEDIUM 6.1EPSS 0.21%
Does this matter?
Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own.
Description
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
- 6.1 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- EPSS
- 0.21% probability · 12th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-352
- Source
- security@wordfence.com
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
- https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L253
- https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L272
- https://www.wordfence.com/threat-intel/vulnerabilities/id/93df6480-9bb1-4f5d-bb39-ff1a01d739cf?source=cve
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.