CVE-2026-47760

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

Published May 28, 2026 CVSS 3.1 · 8.7 High EPSS < 1% KEV · Not listed
Description
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-mh5m-5hw4-5c69 TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Tiny
Tiny tinymce
CPEs cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*
Vendors & Products Tiny
Tiny tinymce
Type Values Removed Values Added
First Time appeared Tinymce
Tinymce tinymce
Vendors & Products Tinymce
Tinymce tinymce
Type Values Removed Values Added
Description 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.
Title TinyMCE Cross-Site Scripting (XSS) vulnerability using sanitization bypass through nested SVGs
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 8.7, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Jun 2, 2026, 3:58 PM
Reserved
May 19, 2026, 10:36 PM
Status
Analyzed
Published
May 28, 2026, 4:16 PM
Modified
Oct 14, 2026, 8:10 PM