Relative Path Traversal in Umbraco CMS - CVE-2025-32017
Published: April 8, 2025 / Updated: May 5, 2026
Vulnerability identifier: #VU130185
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-32017
CWE-ID: CWE-23
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Umbraco
Affected software:
Umbraco CMS
Umbraco CMS
Detailed vulnerability description
The vulnerability allows a remote user to upload files into an incorrect location.
The vulnerability exists due to relative path traversal in the management API when handling crafted file upload requests. A remote user can send a specially crafted management API request to upload files into an incorrect location.
The issue is exploitable by authenticated users to the Umbraco backoffice.
How to mitigate CVE-2025-32017
Install security update from vendor's website.