{"id":"CVE-2026-47760","aliases":["GHSA-mh5m-5hw4-5c69"],"url":"https://o3.security/vulnerability/CVE-2026-47760","summary":"TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs","details":"### Impact\nTinyMCE 6.8.x contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested <svg> elements can bypass attribute sanitization and execute arbitrary JavaScript.\n\n### Patches\nThis issue affects TinyMCE 6.8.x-7.0.x. The vulnerability is fixed in TinyMCE 7.1.0 and later.\n\n### Workarounds\nNo official workaround available.\n\n### Acknowledgements\nTiny thanks [maple3142](https://github.com/maple3142) (<https://maple3142.net>) of DEVCORE for their help identifying this vulnerability.\n\n### References\nFix introduced in TinyMCE 7.1.0 though a rewrite of code causing the vulnerability.","published":"2026-05-28T15:18:22.509Z","modified":"2026-10-16T02:30:49.811204027Z","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":0.00191,"percentile":0.08724,"asOf":"2026-08-24"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"tinymce","fixedVersion":"7.1.0"},{"ecosystem":"NuGet","name":"TinyMCE","fixedVersion":"7.1.0"},{"ecosystem":"Packagist","name":"tinymce/tinymce","fixedVersion":"7.1.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/47xxx/CVE-2026-47760.json"},{"type":"ADVISORY","url":"https://github.com/tinymce/tinymce/security/advisories/GHSA-mh5m-5hw4-5c69"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-47760"},{"type":"PACKAGE","url":"https://github.com/tinymce/tinymce"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-10-16T02:30:49.811204027Z"}}