CVE-2026-47761

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

State: Published
Severity: 8.7 High
Published: May 28, 2026
Updated: May 28, 2026
Reserved: May 19, 2026

Description

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.

Scores

CVSS	Score	Vector	Source
3.1	8.7 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N	GitHub_M

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Affected Products

Product	Versions
tinymcetinymce	< 5.11.1Affected >= 6.0.0, <= 6.8.6Affected >= 7.0.0, < 7.9.3Affected >= 8.0.0, < 8.5.1Affected

References

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