{"id":"CVE-2026-116675","title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` serialization","summary":"TinyMCE is an open source rich text editor. From 7.9.3 until 7.9.4 and from 8.5.1 until 8.9.3, the media plugin creates elements crafted through data-mce-object in the active document before sanitization. Those elements can execute malic…","severity":"high","cvss":8.5,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-79"],"vendor":"tinymce","product":"tinymce","affected":["tinymce >= 8.5.1, < 8.9.3","tinymce >= 7.9.3, < 7.9.4"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T16:47:01.183Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-116675","references":[{"url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-mf2p-h6hf-fcwm","label":"https://github.com/tinymce/tinymce/security/advisories/GHSA-mf2p-h6hf-fcwm"},{"url":"https://github.com/tinymce/tinymce/commit/bd1ab5ef024c648c3f9c0b409e54a6c227c7d8a2","label":"https://github.com/tinymce/tinymce/commit/bd1ab5ef024c648c3f9c0b409e54a6c227c7d8a2"},{"url":"https://github.com/tinymce/tinymce/releases/tag/8.9.3","label":"https://github.com/tinymce/tinymce/releases/tag/8.9.3"},{"url":"https://www.tiny.cloud/docs/tinymce/7/7.9.4-release-notes/#overview","label":"https://www.tiny.cloud/docs/tinymce/7/7.9.4-release-notes/#overview"},{"url":"https://www.tiny.cloud/docs/tinymce/latest/8.9.3-release-notes/#overview","label":"https://www.tiny.cloud/docs/tinymce/latest/8.9.3-release-notes/#overview"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T17:33:23.796Z","slug":"CVE-2026-116675","body":"## Overview\n\nTinyMCE is an open source rich text editor. From 7.9.3 until 7.9.4 and from 8.5.1 until 8.9.3, the media plugin creates elements crafted through data-mce-object in the active document before sanitization. Those elements can execute malicious scripts during processing, resulting in stored cross-site scripting for users with the media plugin enabled. This issue is fixed in versions 8.9.3 and 7.9.4.\n\n## Affected\n\n- `tinymce >= 8.5.1, < 8.9.3`\n- `tinymce >= 7.9.3, < 7.9.4`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":47,"depthScoreParts":{"impact":46.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}