{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3995","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","state":"PUBLISHED","assignerShortName":"Wordfence","dateReserved":"2026-03-11T17:04:22.771Z","datePublished":"2026-04-16T06:44:51.340Z","dateUpdated":"2026-04-16T12:04:24.073Z"},"containers":{"cna":{"providerMetadata":{"orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","shortName":"Wordfence","dateUpdated":"2026-04-16T06:44:51.340Z"},"affected":[{"vendor":"faridsaniee","product":"OPEN-BRAIN","versions":[{"version":"0","status":"affected","lessThanOrEqual":"0.5.0","versionType":"semver"}],"defaultStatus":"unaffected"}],"descriptions":[{"lang":"en","value":"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 uses sanitize_text_field() which strips HTML tags but does not encode double quotes or other HTML-special characters needed for safe attribute context output. The API key value is saved via update_option() and later output into an HTML input element's value attribute without esc_attr() escaping. This makes it possible for authenticated attackers, with Administrator-level access, to inject arbitrary web scripts via attribute breakout payloads (e.g., double quotes followed by event handlers) that execute whenever a user accesses the plugin settings page."}],"title":"OPEN-BRAIN <= 0.5.0 - Authenticated (Administrator+) Stored Cross-Site Scripting via 'API Key' Setting","references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/3fe3fa95-cc1d-469b-8a97-37987b9ae362?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#L128"},{"url":"https://plugins.trac.wordpress.org/browser/open-brain/tags/0.5.0/index.php#L128"}],"problemTypes":[{"descriptions":[{"lang":"en","description":"CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","cweId":"CWE-79","type":"CWE"}]}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:N","baseScore":4.4,"baseSeverity":"MEDIUM"}}],"credits":[{"lang":"en","type":"finder","value":"Muhammad Nur Ibnu Hubab"}],"timeline":[{"time":"2026-04-15T17:42:29.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-04-16T11:11:56.355411Z","id":"CVE-2026-3995","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-04-16T12:04:24.073Z"}}]}}