Vulnerability Report

CVE-2026-47759

Title: TinyMCE Stored XSS via Unsanitized data-mce-* Attributes

XSS

Proof Of Concept

No public PoC currently indexed for CVE-2026-47759.

CWE Category CWE-79
Published Date May 28, 2026
Modified Date May 28, 2026
Exploit Status Not Found
Score 8.7 CVSS v3.1
Exploit Probability (EPSS)
0.28%

Vulnerability Summary

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.

Impacted Vendors

T
tiny 1

Reference Links

https://github.com/tinymce/tinymce/security/advisories/GHSA-q742-qvgc-gc2f https://www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/#overview https://www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/#overview
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.7
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
CVSS v3.1
Source Entity [email protected]
Severity MEDIUM
5.4
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
REQUIRED
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
CHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-47759 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction REQUIRED
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Affected Stack

No specific products linked.