{"id":"EM-20261108-OICJ","url":"https://cyber.eventmonitor.net/incident/EM-20261108-OICJ/suneditor-vulnerability-cve-2026-124492/","type":"cve","title":"SunEditor Vulnerability (CVE-2026-124492)","subtitle":"CVE-2026-124492","subject":"CVE-2026-124492","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-08T15:31:30.000Z","firstSignal":"2026-11-08T14:18:18.980Z","lastSignal":"2026-11-08T15:31:30.000Z","updated":"2026-11-08T16:25:20.514Z","revision":1,"life":[{"status":"Born","at":"2026-11-08T15:31:30.000Z","why":"second independent source: C29 CIRCL Vulnerability-Lookup"},{"status":"Developing","at":"2026-11-08T15:31:30.000Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-08T14:18:18.980Z","what":"First signal: C6 NVD CVE API 2.0"},{"at":"2026-11-08T15:31:30.000Z","what":"Born: second source, C29 CIRCL Vulnerability-Lookup. Page EM-20261108-OICJ created."}],"stages":[{"name":"Disclosed","at":"2026-11-08T14:18:18.980Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-08T14:18:18.980Z","detail":"CVSS 8.3"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":null,"detail":"None in sources yet"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-08T14:18:18.980Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-124492 (CVSS 8.3)","text":"SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability in ModalAnchorEditor's #createBookmarkList, which inserts entity-decoded h1-h6 header textContent into the bookmark list via innerHTML without escaping. Attackers can store HTML-encoded payloads in editor headers that execute JavaScript when a victim opens the link modal and types # in the URL input.","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-124492"},{"at":"2026-11-08T15:31:30.000Z","source":"C29","sourceName":"CIRCL Vulnerability-Lookup","role":"Database","severity":2,"title":"GHSA-h8r9-r2r8-gxj7 / CVE-2026-124492","text":"SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability in ModalAnchorEditor's #createBookmarkList, which inserts entity-decoded h1-h6 header textContent into the bookmark list via innerHTML without escaping. Attackers can store HTML-encoded payloads in editor headers that…","url":"https://vulnerability.circl.lu/vuln/GHSA-h8r9-r2r8-gxj7"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-08T14:18:18.980","score":8.3,"severity":"HIGH","desc":"SunEditor before 3.4.0 contains a stored cross-site scripting vulnerability in ModalAnchorEditor's #createBookmarkList, which inserts entity-decoded h1-h6 header textContent into the bookmark list via innerHTML without escaping. Attackers can store HTML-encoded payloads in editor headers that…","product":"","seen":1794155120514},"kev":null,"epss":null,"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}