SB2025040899 - Relative Path Traversal in Umbraco CMS
Published: April 8, 2025 Updated: May 5, 2026
Security Bulletin ID
SB2025040899
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Relative Path Traversal (CVE-ID: CVE-2025-32017)
CWE-ID: CWE-23 - Relative Path Traversal
CVSSv4: 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
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.
Remediation
Install update from vendor's website.