CVE-2026-31832

MEDIUM EPSS 7.7%
Published Mar 10, 20263mo ago · Modified Mar 18, 20263mo ago
5.4 CVSS 3.1
Medium
Find Similar
Published Mar 10, 2026 3mo ago
Last Modified Mar 18, 2026 3mo ago

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.

CVSS Details

Base Score
5.4
Exploitability
2.8
Impact
2.5
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability Low

Threat Intelligence

EPSS Exploit Probability
7.7% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-639

Affected Products 2

VendorProductVersionRange
umbracoumbraco_cms*≥14.0.0  –  <16.5.1
umbracoumbraco_cms*≥17.0.0  –  <17.2.2

References 1

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

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.