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.
Metrics
Affected Vendors & Products
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Fixes
Solution
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Workaround
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References
History
Tue, 10 Mar 2026 22:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Umbraco Backoffice API Allows Unauthorized Modification of Domain Data | |
| Weaknesses | CWE-639 | |
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| Metrics |
cvssV3_1
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Projects
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MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-03-10T21:49:54.908Z
Reserved: 2026-03-09T17:41:56.077Z
Link: CVE-2026-31832
Vulnrichment
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NVD
Status : Received
Published: 2026-03-10T22:16:21.257
Modified: 2026-03-10T22:16:21.257
Link: CVE-2026-31832
Redhat
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OpenCVE Enrichment
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Weaknesses