CVE-2026-116675: TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` serialization
Stored XSS vulnerability in the media plugin. Attackers can inject malicious scripts via elements crafted through the data-mce-object attribute, which are created and executed before sanitization. Impacts users of TinyMCE with the media plugin enabled.
References
- github.com/advisories/GHSA-mf2p-h6hf-fcwm
- github.com/tinymce/tinymce/commit/bd1ab5ef024c648c3f9c0b409e54a6c227c7d8a2
- github.com/tinymce/tinymce/releases/tag/8.9.3
- github.com/tinymce/tinymce/security/advisories/GHSA-mf2p-h6hf-fcwm
- nvd.nist.gov/vuln/detail/CVE-2026-116675
- www.tiny.cloud/docs/tinymce/7/7.9.4-release-notes/
- www.tiny.cloud/docs/tinymce/latest/8.9.3-release-notes/
Code Behaviors & Features
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