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CVE-2026-31832

nvd nist
Published: Mar 10, 2026Modified: Jun 17, 2026

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5.4
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Exploitability: 2.8 / Impact: 2.5
Source: security-advisories@github.com (Secondary)

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.

Affected (2)

Products: Umbraco: Umbraco Cms
Umbraco
1 product
Umbraco Cms
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Umbraco
Umbraco Cms
From 14.0.0 to 16.5.1
Umbraco Cms
From 17.0.0 to 17.2.2

Related CWEs

CWE-639
Authorization Bypass Through User-Controlled Key
The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

References (1)

Source: security-advisories@github.com
Vendor Advisory

Timeline

No history available yet.