Arbitrary file upload in Umbraco CMS - CVE-2020-9472
Published: March 16, 2020 / Updated: April 18, 2021
Vulnerability identifier: #VU34732
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2020-9472
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Umbraco
Affected software:
Umbraco CMS
Umbraco CMS
Detailed vulnerability description
The vulnerability allows a remote authenticated user to manipulate data.
Umbraco CMS 8.5.3 allows an authenticated file upload (and consequently Remote Code Execution) via the Install Package functionality.
How to mitigate CVE-2020-9472
Install update from vendor's website.