Cross-Site Scripting Vulnerability in TinyMCE Media Plugin
CVE-2026-116675

8.5HIGH

Key Information:

Vendor

Tinymce

Status
Tinymce
Vendor
CVE Published:
27 October 2026

What is CVE-2026-116675?

The TinyMCE rich text editor is affected by a stored cross-site scripting vulnerability due to inadequate sanitization of elements created via the media plugin. This issue allows malicious scripts to be executed within the user's browser when documents that utilize the media plugin are processed. Versions 7.9.3 through 7.9.4 and 8.5.1 through 8.9.3 are susceptible to exploitation. Users are urged to upgrade to the latest versions to mitigate potential risks.

Affected Version(s)

tinymce >= 8.5.1, < 8.9.3 < 8.5.1, 8.9.3

tinymce >= 7.9.3, < 7.9.4 < 7.9.3, 7.9.4

References

https://github.com/tinymce/tinymce/security/advisories/GH...
x_refsource_CONFIRM
https://github.com/tinymce/tinymce/commit/bd1ab5ef024c648...
x_refsource_MISC
https://github.com/tinymce/tinymce/releases/tag/8.9.3
x_refsource_MISC

CVSS V4

Score:
8.5
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.