TinyMCE Cross-Site Scripting (XSS) vulnerability through `mce:protected` comments (tinymce tinymce)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.28 % · percentile 21 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- GitHub_M
- NVD status
- Analyzed
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 via forged mce:protected comments. Allows attackers to bypass sanitization and inject scripts that execute when content is restored. Impacts users who utilize the protect option. This vulnerability is fixed in 5.11.1, 7.9.3, and 8.5.1.
Weaknesses (CWE)
- CWE-79 — Improper Neutralization of Input During Web Page Generation
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N | GitHub_M |
| CVSS 3.1 | HIGH 8.7 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N | NVD · security-advisories@github.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N | NVD · nvd@nist.gov (Primary) |
Advisories
- GHSA-v98h-vmpc-fpqv — TinyMCE Cross-Site Scripting (XSS) vulnerability through `mce:protected` comments
European references
- ENISA EUVD · EUVD-2026-32923
- GCVE · GCVE-0-2026-47762
CERT-FR advisories
- CERTFR-2026-AVI-1318 — Multiples vulnérabilités dans Moodle · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*< 5.11.1cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*≥ 6.0.0 < 7.9.3cpe:2.3:a:tiny:tinymce:*:*:*:*:*:*:*:*≥ 8.0.0 < 8.5.1
Affected products
| Product | Versions |
|---|---|
| tinymce · tinymce | affected < 5.11.1 ; affected >= 6.0.0, <= 6.8.6 ; affected >= 7.0.0, < 7.9.3 ; affected >= 8.0.0, < 8.5.1 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |