CVE-2026-47759

Name: CVE-2026-47759
Creator: NVD / NIST
Published: 2026-05-28T16:16:28.07+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.4/10EPSS 0.24%

Last modified Jun 17, 2026

CVE-2026-47759 is a medium-severity vulnerability rated 5.4/10 on the CVSS scale. 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). EPSS estimates a 0.24% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.4/10

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

EPSS Probability

0.24%

14.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-79

Affected Software

Vendor	Product	Versions
Tiny	Tinymce	< 5.11.1
Tiny	Tinymce	>= 6.0.0, < 7.9.3
Tiny	Tinymce	>= 8.0.0, < 8.5.1

References

https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2fPatch, Vendor Advisory
https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overviewRelease Notes
https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overviewRelease Notes

Timeline

Published: May 28, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-47759?

How severe is CVE-2026-47759?

CVE-2026-47759 has a CVSS score of 5.4/10 (MEDIUM severity). The EPSS model estimates a 0.24% probability of exploitation in the next 30 days.

How do I fix CVE-2026-47759?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-47759?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST