XSS in Faridsaniee Open-brain

CVE-2026-3995

The OPEN-BRAIN plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'API Key' settings field in all versions up to, and including, 0.5.0. This is due to insufficient input sanitization and output escaping. The plugin u…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (7.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.4 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-3995?
CVE-2026-3995 is a medium-severity vulnerability in Faridsaniee Open-brain, classified under Cross-site Scripting. CVSS score: 4.4/10. Published 2026-04-16.
How severe is CVE-2026-3995?
Medium severity. CVSS v3 base score is 4.4 out of 10.