CVE-2026-47761: TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` injection

June 5, 2026 (updated June 30, 2026)

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.

References

github.com/advisories/GHSA-vg35-5wq7-3x7w
github.com/tinymce/tinymce/security/advisories/GHSA-vg35-5wq7-3x7w
nvd.nist.gov/vuln/detail/CVE-2026-47761
www.tiny.cloud/docs/tinymce/7/7.9.3-release-notes/
www.tiny.cloud/docs/tinymce/8/8.5.1-release-notes/

Code Behaviors & Features

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