{"id":"EUVD-2026-111106","revision":null,"records":[{"revision":"a1799205f9284174bdc4e3f5d5937e5e","observedAt":"2026-10-28T17:46:48.824+00:00","statement":{"source":"cve-program","id":"CVE-2026-116675","aliases":[],"title":"TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` serialization","description":"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 malicious scripts during processing, resulting in stored cross-site scripting for users with the media plugin enabled. 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Impacts users of TinyMCE with the media plugin enabled.\n\n### Patches\nThis vulnerability has been patched in TinyMCE 8.9.3 and TinyMCE 7.9.4 by ensuring that, when using the media plugin, any content created through the data-mce-object attribute is properly sanitized first.\n\n### Workarounds\nNo official workaround available.\n\n### Fix\nTo avoid this vulnerability:\n\nUpgrade to TinyMCE 8.9.3 or higher.\nUpgrade to TinyMCE 7.9.4 or higher.\n\n### Acknowledgements\nTiny thanks [Fariskhi Vidyan](https://github.com/farisv) and David Vieira Kurz (HiSolutions AG) for their help identifying this vulnerability.","state":0,"publishedAt":"2026-10-27T21:07:12+00:00","modifiedAt":"2026-10-27T21:15:04.9124507+00:00","affected":[{"ecosystem":"npm","name":"tinymce","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"8.5.1"},{"kind":"fixed","version":"8.9.3"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"NuGet","name":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"8.5.1"},{"kind":"fixed","version":"8.9.3"}]}],"versions":["8.5.1","8.6.0","8.7.0","8.8.0","8.8.1","8.8.2","8.9.0","8.9.1","8.9.2"],"rawVersionEvidence":null},{"ecosystem":"Packagist","name":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"8.5.1"},{"kind":"fixed","version":"8.9.3"}]}],"versions":["8.5.1","8.6.0","8.7.0","8.8.0","8.8.1","8.8.2","8.9.0","8.9.1","8.9.2"],"rawVersionEvidence":null},{"ecosystem":"npm","name":"tinymce","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"7.9.3"},{"kind":"fixed","version":"7.9.4"}]}],"versions":["7.9.3"],"rawVersionEvidence":null},{"ecosystem":"NuGet","name":"TinyMCE","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"7.9.3"},{"kind":"fixed","version":"7.9.4"}]}],"versions":["7.9.3"],"rawVersionEvidence":null},{"ecosystem":"Packagist","name":"tinymce/tinymce","ranges":[{"type":"ECOSYSTEM","events":[{"kind":"introduced","version":"7.9.3"},{"kind":"fixed","version":"7.9.4"}]}],"versions":["7.9.3"],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"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","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/tinymce/tinymce/security/advisories/GHSA-mf2p-h6hf-fcwm","https://nvd.nist.gov/vuln/detail/CVE-2026-116675","https://github.com/tinymce/tinymce/commit/bd1ab5ef024c648c3f9c0b409e54a6c227c7d8a2","https://github.com/tinymce/tinymce","https://github.com/tinymce/tinymce/releases/tag/8.9.3","https://www.tiny.cloud/docs/tinymce/7/7.9.4-release-notes/#overview","https://www.tiny.cloud/docs/tinymce/latest/8.9.3-release-notes/#overview"],"sourceUrl":"https://github.com/advisories/GHSA-mf2p-h6hf-fcwm","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-mf2p-h6hf-fcwm","identifiers":["GHSA-mf2p-h6hf-fcwm","CVE-2026-116675"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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