#VU119398 Information Exposure Through an Error Message in Umbraco CMS - CVE-2025-66625
Published: December 9, 2025
Vulnerability identifier: #VU119398
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2025-66625
CWE-ID: CWE-209
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Umbraco CMS
Umbraco CMS
Software vendor:
Umbraco
Umbraco
Description
The vulnerability allows a remote user to gain access to sensitive information.
The vulnerability exists due to unsafe handling and deletion of temporary files during the dictionary upload process. A remote user can enumerate existing files on the system and under certain circumstances obtain the NTLM hash of the Windows account running the Umbraco application.
Remediation
Install updates from vendor's website.