Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-47761

Severity CVSS v4.0:
Pending analysis
Type:
CWE-79 Cross-Site Scripting (XSS)
Publication date:
28/05/2026
Last modified:
28/05/2026

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 in the media plugin. Attackers can inject malicious scripts via crafted data-mce-* attributes, which are executed when content is rendered. Impacts users of TinyMCE with the media plugin enabled. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.

Impact

Vector 3.x
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N CVSS v3.1 Severity and Metrics:

Base Score: 8.70 HIGH
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): High
Integrity (I): High
Availability (A): None

Base Score 3.x
8.70
Severity 3.x
HIGH

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:* 5.11.1 (excluding)
cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:* 6.0.0 (including) 7.9.3 (excluding)
cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:* 8.0.0 (including) 8.5.1 (excluding)

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools