CVE-2026-47761
TinyMCE Cross-Site Scripting (XSS) vulnerability using media plugin `data-mce-object` injection
MEDIUM 5.4EPSS 0.3%
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.
- Affected
- tinymce
- CVSS v3.1 NVD
- 5.4 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N - CVSS v3.1 GITHUB
- 8.7 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N - EPSS
- 0.26% chance of exploitation in the next 30 days, 17th percentile
- Published
- 2026-05-28
Proof-of-concept exploits (1)
- ange-primiterra/CVE-2026-477610★ · 2026-07-24
Security advisories
- tinymce/tinymce/security/advisories/GHSA-vg35-5wq7-3x7w
- advisories/GHSA-vg35-5wq7-3x7w
- 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