CSRF in Faridsaniee Open-Brain
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.
Vulnerability class: CSRF (Cross-Site Request Forgery)
EPSS: 0.002 (11.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.
Affected products
- Faridsaniee Open-brain — versions 0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-4091?
- CVE-2026-4091 is a medium-severity vulnerability in Faridsaniee Open-Brain, classified under Cross-Site Request Forgery (CSRF). CVSS score: 6.1/10. Published 2026-04-15.
- How severe is CVE-2026-4091?
- Medium severity. CVSS v3 base score is 6.1 out of 10.