CVE-2026-31833
1 advisory.
NuGet/Umbraco.Cms CVE-2026-31833: medium 6.7
Umbraco has Stored XSS in UFM Rendering Pipeline via Permissive DOMPurify Attribute Filtering
Action: Upgrade Umbraco.Cms to 16.5.1 (16.x) or 17.2.2 (17.x) or later.
Affected
| introduced | fixed | last affected |
|---|---|---|
| 16.2.0 | 16.5.1 | - |
| 17.0.0 | 17.2.2 | - |
Fixed versions
| 16.5.1 | 17.2.2 |
Sources
- osv: GHSA-vrqc-59mw-qqg7
- https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-vrqc-59mw-qqg7
- https://nvd.nist.gov/vuln/detail/CVE-2026-31833
- https://github.com/umbraco/Umbraco-CMS
CVE-2026-31833 · published · modified · JSON