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CVE-2026-47761

HighPublished

TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin data-mce-object injection

Published: May 28, 2026
Updated: May 28, 2026
Assigning CNA: GitHub_M
Evidence observed: Aug 28, 2026

Primary CVSS

8.7/ 10High

nvd · CVSS 3.1

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

EPSS probability estimate

0.3%

Low · next 30 days

Percentile: 18.6%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

TinyMCE is an open source rich text editor. Prior to 5.11.1, 7.9.3, and 8.5.1, there is a stored XSS vulnerability in the media plugin. Attackers can inject malicious scripts via crafted data-mce-* attributes, which are executed when content is rendered. Impacts users of TinyMCE with the media plugin enabled. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

Sources

CVE-2026-47761Informational
Proof-of-concept and reference repository for CVE-2026-47761, a stored cross-site scripting (XSS) vulnerability in TinyMCE. Includes CVE details, GHSA advisory links, and security researcher hall of fame.

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