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CVE-2026-47759

TinyMCE Cross-Site Scripting (XSS) vulnerability using through data-mce- prefixed src, href, style attributes

Published: May 28, 2026Updated: May 28, 2026 Sources: CVE List
NVD MITRE
8.7CVSS
HIGH

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:LUI:RS:CC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None

Weaknesses

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

Affected Products

tinymce
tinymce

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f
github.com
https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview
tiny.cloud
https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview
tiny.cloud

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