CVE-2026-47760
mediumpriority · track · 22EPSS 0.002 · 9 %ileEUUSEPSS · scored 2026-10-27
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–8.7
ssvc
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weaknesses
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affected products (5)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-mh5m-5hw4-5c69TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs2026-06-05ghsa · osvUS
### Impact TinyMCE 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. ### Patches This issue affects TinyMCE 6.8.x-7.0.x. The vulnerability is fixed in TinyMCE 7.1.0 and later. ### Workarounds No official workaround available. ### Acknowledgements Tiny thanks [maple3142](https://github.com/maple3142) (<https://maple3142.net>) of DEVCORE for their help identifying this vulnerability. ### References Fix introduced in TinyMCE 7.1.0 though a rewrite of code causing the vulnerability.
also known as (3)
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sources
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references (4)
External citations — patches, advisories, analysis.
- https://github.com/tinymce/tinymce/security/advisories/GHSA-mh5m-5hw4-5c69cnnvd
- https://github.com/tinymce/tinymce/tagsPatchcnnvd
- https://github.com/tinymce/tinymce/security/advisories/GHSA-mh5m-5hw4-5c69enisa_euvd
- https://github.com/tinymce/tinymce/security/advisories/GHSA-mh5m-5hw4-5c69Vendor Advisorynvd
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