🛡️ CVE-2025-27601 — umbraco-cms

🟡 CVSS 4.3 — Medium ✅ No Known Exploit CWE-285 NVD
4.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Umbraco is a free and open source .NET content management system. An improper API access control issue has been identified Umbraco's API management package prior to versions 15.2.3 and 14.3.3, allowing low-privilege, authenticated users to create and update data type information that should be restricted to users with access to the settings section. The issue is patched in versions 15.2.3 and 14.3.3. No known workarounds are available.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity low, availability none.

Weakness class

CVE-2025-27601 is classified as CWE-285: Improper Authorization. A request is carried out without confirming that the caller is permitted to perform it on that specific resource.

Affected software

CVE-2025-27601 is recorded against 2 packages.

  • umbraco-cms (from 15.0.0 up to 15.2.3)
  • umbraco.cms.api.management (fixed in 14.3.3)

Timeline and source

Published on 11 March 2025 and last revised on 17 June 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com
github.com
github.com

Details

Severity MEDIUM
CVSS Score 4.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
CWE CWE-285
Public Exploit ✅ No
Source NVD
Published 2025-03-11
Updated 2026-08-12
Modified 2026-06-17

Affected Packages

Software From version Fixed in
umbraco-cms 15.0.0 15.2.3
umbraco.cms.api.management — 14.3.3

Similar Threats

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