Path traversal in Umbraco CMS - CVE-2023-49089
Published: December 13, 2023
Vulnerability identifier: #VU84403
CSH Severity: Low
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-49089
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences in the backoffice component. A remote user with permissions to create packages can send a specially crafted HTTP request and write arbitrary files outside of the expected location.
Affected software
Umbraco CMS
How to mitigate CVE-2023-49089
Install update from vendor's website.
Umbraco CMS - addressed in versions 8.18.10, 10.8.1, 12.3.4