CVE-2026-47760

TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs

CVSS 8.7 HIGHEPSS 0.2%CWE-79

TinyMCE is an open source rich text editor. From 6.8.0 to before 7.1.0, TinyMCE contains an XSS vulnerability caused by improper SVG namespace scope handling in the sanitizer. A crafted payload using nested elements can bypass attribute sanitization and execute arbitrary JavaScript. This vulnerability is fixed in 7.1.0.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Affected products

tinymce · tinymce

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References

https://github.com/tinymce/tinymce/security/advisories/GHSA-mh5m-5hw4-5c69