Arbitrary file upload in CMS Made Simple - CVE-2020-17462
Published: August 14, 2020 / Updated: October 14, 2020
Vulnerability identifier: #VU45826
CSH Severity: Medium
CVSS v4: 8.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-17462
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file extension when uploading ptar and .phtml files. A remote authenticated user can upload and execute arbitrary file on the system.
Affected software
CMS Made Simple
How to mitigate CVE-2020-17462
Install update from vendor's website.
CMS Made Simple - update to 2.2.15