CVE-2026-4091CWE-352

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

Medium · published April 15, 2026

CVSS v3.1
6.1
EPSS
0%
Percentile
11.3
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.1 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS v4.0
Not supplied
EPSS
0.00215 · 11.3th percentile
Weakness
CWE-352 · Cross-Site Request Forgery (CSRF)
Published
2026-04-15T08:28Z
EPSS history
Timeline
  • 15 APR 08:28Z
    OPEN-BRAIN <= 0.5.0 - Cross-Site Request Forgery
    cvelistv5