{"id":"CVE-2026-124492","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-124492","summary":"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…","details":"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.","published":"2026-11-08T14:18:18.980","modified":"2026-11-08T14:18:18.980","cvss":{"score":7.6,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://github.com/JiHong88/suneditor/security/advisories/GHSA-5pp5-5qrp-vq56"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/suneditor-before-3.4.0-stored-xss-via-link-modal-bookmark-list"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-08T14:18:18.980"}}