CVE-2026-47759

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.

CVSS v3 8.7 HIGH

8.7^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.3 / Impact : 5.8

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope CHANGED

References

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

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:tiny:tinymce::::::::
	cpe:2.3:a:tiny:tinymce::::::::
	cpe:2.3:a:tiny:tinymce::::::::

History

14 Oct 2026, 20:10

Type	Values Removed	Values Added
Summary		(es) TinyMCE es un editor de texto enriquecido de código abierto. En versiones anteriores a 5.11.1, 7.9.3 y 8.5.1, existe una vulnerabilidad XSS almacenada a través de atributos data-mce-* no saneados (data-mce-href, data-mce-src, data-mce-style). Permite a los atacantes inyectar valores maliciosos que sobrescriben atributos seguros durante la serialización, eludiendo la validación. Esta vulnerabilidad se ha corregido en 5.11.1, 7.9.3 y 8.5.1.

Information

Published : 2026-05-28 16:16

Updated : 2026-10-14 20:10

NVD link : CVE-2026-47759

Mitre link : CVE-2026-47759

CVE.ORG link : CVE-2026-47759

JSON object : View

Products Affected

tiny

tinymce

CWE

CWE-79

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

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