CVE-2026-47759

8.7 HIGH
Published: May 28, 2026 Modified: May 28, 2026
View on NVD

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 via unsanitized data-mce-* attributes (data-mce-href, data-mce-src, data-mce-style). Allows attackers to inject malicious values that override safe attributes during serialization, bypassing validation. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f
Source: security-advisories@github.com
Patch Vendor Advisory
https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview
Source: security-advisories@github.com
Release Notes
https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview
Source: security-advisories@github.com
Release Notes

3 reference(s) from NVD

Quick Stats

CVSS v3 Score
8.7 / 10.0
EPSS (Exploit Probability)
0.2%
11th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

tiny