{"id":"CVE-2026-47762","aliases":["GHSA-v98h-vmpc-fpqv"],"url":"https://o3.security/vulnerability/CVE-2026-47762","summary":"TinyMCE Cross-Site Scripting (XSS) vulnerability through `mce:protected` comments","details":"### Impact\nStored XSS vulnerability via forged mce:protected comments. Allows attackers to bypass sanitization and inject scripts that execute when content is restored. Impacts users who utilize the protect option.\n\n### Patches\nPatched by validating decoded mce:protected content against configured protect regex rules before restoring. Users should upgrade to the latest patched version.\n\n### Workarounds\nNo official workaround available.\n\n### Fix\nTo avoid this vulnerability:\n\nUpgrade to TinyMCE 8.5.1 or higher.\nUpgrade to TinyMCE 7.9.3 or higher.\nUpgrade to TinyMCE 5.11.1 LTS or higher for TinyMCE 5.x (only available as part of commercial [long-term support](https://www.tiny.cloud/long-term-support/) contract).\n\n### Acknowledgements\nTiny thanks [Ivan Babenko](https://github.com/he1d3n) for their help identifying this vulnerability.","published":"2026-05-28T15:21:36.882Z","modified":"2026-10-20T12:00:10.967704326Z","cvss":{"score":8.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N"},"epss":{"score":0.00281,"percentile":0.20731,"asOf":"2026-08-20"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"tinymce","fixedVersion":null},{"ecosystem":"npm","name":"tinymce","fixedVersion":"7.9.3"},{"ecosystem":"npm","name":"tinymce","fixedVersion":"8.5.1"},{"ecosystem":"NuGet","name":"TinyMCE","fixedVersion":null},{"ecosystem":"NuGet","name":"TinyMCE","fixedVersion":"7.9.3"},{"ecosystem":"NuGet","name":"TinyMCE","fixedVersion":"8.5.1"},{"ecosystem":"Packagist","name":"tinymce/tinymce","fixedVersion":null},{"ecosystem":"Packagist","name":"tinymce/tinymce","fixedVersion":"7.9.3"},{"ecosystem":"Packagist","name":"tinymce/tinymce","fixedVersion":"8.5.1"}],"fix":null,"references":[{"type":"WEB","url":"https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview"},{"type":"WEB","url":"https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47762.json"},{"type":"ADVISORY","url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-v98h-vmpc-fpqv"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47762"},{"type":"PACKAGE","url":"https://github.com/tinymce/tinymce"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-20T12:00:10.967704326Z"}}