Main Vulnerability Database Vulnerabilities #VU34731

Arbitrary file upload in Umbraco CMS - CVE-2020-9471

Published: March 16, 2020 / Updated: August 8, 2020

Vulnerability identifier: #VU34731

CSH Severity: High

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:Amber

CVE-ID: CVE-2020-9471

CWE-ID: CWE-434

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vendor: Umbraco

Affected software:
Umbraco CMS

Detailed vulnerability description

The vulnerability allows a remote authenticated user to execute arbitrary code.

Umbraco Cloud 8.5.3 allows an authenticated file upload (and consequently Remote Code Execution) via the Install Packages functionality.

Install update from vendor's website.