What is CVE-2025-27601?

CVE-2025-27601 is a medium-severity vulnerability in Umbraco Umbraco-cms, classified under Improper Authorization. CVSS score: 4.3/10. Published 2025-03-11.

How severe is CVE-2025-27601?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Umbraco Umbraco-cms

CVE-2025-27601

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…

EPSS: 0.002 (37.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N.

Affected products

Umbraco Umbraco-cms — versions >= 15.0.0-rc1, < 15.2.3, < 14.3.3

Weakness classification (CWE)

References

https://github.com/umbraco/Umbraco-CMS/security/advisories/GHSA-6ffg-mjg7-585x (x_refsource_CONFIRM)
https://github.com/umbraco/Umbraco-CMS/commit/d9fb6df16e9adf8656181cac8497fc5ba23321cd (x_refsource_MISC)
https://github.com/umbraco/Umbraco-CMS/commit/ebb6a580dc1da2c772a99838dc7b4660bf77eb9c (x_refsource_MISC)

Frequently asked questions

What is CVE-2025-27601?: CVE-2025-27601 is a medium-severity vulnerability in Umbraco Umbraco-cms, classified under Improper Authorization. CVSS score: 4.3/10. Published 2025-03-11.
How severe is CVE-2025-27601?: Medium severity. CVSS v3 base score is 4.3 out of 10.