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.
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Affected Vendors & Products
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History
Wed, 11 Mar 2026 16:15:00 +0000
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ssvc
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Wed, 11 Mar 2026 12:00:00 +0000
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Umbraco
Umbraco cms |
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Umbraco
Umbraco cms |
Tue, 10 Mar 2026 22:00:00 +0000
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| 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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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-03-10T21:49:54.908Z
Updated: 2026-03-11T15:58:54.874Z
Reserved: 2026-03-09T17:41:56.077Z
Link: CVE-2026-31832
Updated: 2026-03-11T15:51:49.053Z
Status : Awaiting Analysis
Published: 2026-03-10T22:16:21.257
Modified: 2026-03-11T13:52:47.683
Link: CVE-2026-31832
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