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CVE-2026-47759 Details

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.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.4 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:8.7 HIGHVector: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

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URL	Source(s)	Tag(s)
https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f	[email protected]	PatchVendor Advisory
https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview	[email protected]	Release Notes
https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview	[email protected]	Release Notes

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-79	Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')	[email protected]

Affected Products

Product	Versions
tiny tinymce	< 5.11.1 >= 6.0.0, < 7.9.3 >= 8.0.0, < 8.5.1
CPE cpe:2.3:a:tiny:tinymce:::::::: Remediation No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
May 28, 2026	Initial Analysis	[email protected]
May 28, 2026	New CVE Received	[email protected]