{"id":"CVE-2026-116687","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-116687","summary":"CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 29.0.0 until 47.7.4 and 48.5.1, specially crafted markup can trigger cross-site scripting when General…","details":"CKEditor 5 is a modern JavaScript rich-text editor with an MVC architecture. From 29.0.0 until 47.7.4 and 48.5.1, specially crafted markup can trigger cross-site scripting when General HTML Support is enabled and specifically configured to allow object content. Processing that content can execute attacker-controlled JavaScript in a browser context isolated from the origin of the application embedding the editor. This issue is fixed in versions 47.7.4 and 48.5.1.","published":"2026-10-27T20:17:13.890","modified":"2026-10-27T20:17:13.890","cvss":{"score":3.1,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0","label":"ckeditor/ckeditor5@4d9c5bb"},"references":[{"type":"WEB","url":"https://github.com/ckeditor/ckeditor5/commit/4d9c5bb34f63cd956d15ccafbe584e14280c86a0"},{"type":"WEB","url":"https://github.com/ckeditor/ckeditor5/commit/a750e38635db6a18c5b11599c09f4fd702850423"},{"type":"WEB","url":"https://github.com/ckeditor/ckeditor5/releases/tag/v47.7.4"},{"type":"WEB","url":"https://github.com/ckeditor/ckeditor5/releases/tag/v48.5.1"},{"type":"WEB","url":"https://github.com/ckeditor/ckeditor5/security/advisories/GHSA-v6mg-96c6-gmpq"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-27T20:17:13.890"}}