CVE CVE-2026-31832

CVE-2026-31832

ASP.NET

Severity: MEDIUM
CVSS: 5.4CVSS
Published: 2026-03-10
Last modified: 2026-03-18
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
CWE: CWE-639

Description

Umbraco is an ASP.NET CMS. From 14.0.0 to before 16.5.1 and 17.2.2, A broken object-level authorization vulnerability exists in a backoffice API endpoint that allows authenticated users to assign domain-related data to content nodes without proper authorization checks. The issue is caused by insufficient authorization enforcement on the affected API endpoint, whereby via an API call, domains can be set on content nodes that the editor does not have permission to access (either via user group privileges or start nodes). This vulnerability is fixed in 16.5.1 and 17.2.2.

References

https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-fpvf-fvp5-996r

Summary

Description

References