{"id":"CVE-2026-4091","aliases":["EUVD-2026-22870","GHSA-frwx-4qvw-g6ww"],"status":"published","title":"OPEN-BRAIN \u003c= 0.5.0 - Cross-Site Request Forgery","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.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-08","score":0.00211,"percentile":0.11458,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-352"],"published":"2026-04-15T08:28:15Z","modified":"2026-06-17T10:55:58Z","products":[{"vendor":"faridsaniee","product":"open-brain"}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/93df6480-9bb1-4f5d-bb39-ff1a01d739cf?source=cve"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L272"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L272"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L252"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L252"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L253"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L253"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/trunk/index.php#L237"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L237"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4091"},{"url":"https://github.com/advisories/GHSA-frwx-4qvw-g6ww"}],"sources":{"cve":[{"id":"CVE-2026-4091","title":"OPEN-BRAIN \u003c= 0.5.0 - Cross-Site Request Forgery","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.","status":"published","published":"2026-04-15T08:28:15.602Z","modified":"2026-04-15T15:48:59.579Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:19:59.369956Z"}],"euvd":[{"id":"EUVD-2026-22870","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.","status":"published","published":"2026-04-15T08:28:15Z","modified":"2026-04-15T15:48:59Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T19:24:25.212217Z"}],"ghsa":[{"id":"GHSA-frwx-4qvw-g6ww","title":"The OPEN-BRAIN plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions...","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.","status":"published","published":"2026-04-22T21:31:44Z","modified":"2026-04-22T21:31:55Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T15:07:35.737909Z"}],"nvd":[{"id":"CVE-2026-4091","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.","status":"published","published":"2026-04-15T09:16:33.05Z","modified":"2026-06-17T10:55:58.7Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-352"],"updated_at":"2026-11-02T14:12:14.748836Z"}]}}