Arbitrary file upload in Contao - CVE-2019-19745
Published: December 17, 2019 / Updated: August 8, 2020
Vulnerability identifier: #VU34959
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-2019-19745
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Contao
Affected software:
Contao
Contao
Detailed vulnerability description
The vulnerability allows a remote authenticated user to execute arbitrary code.
Contao 4.0 through 4.8.5 allows PHP local file inclusion. A back end user with access to the form generator can upload arbitrary files and execute them on the server.
How to mitigate CVE-2019-19745
Install update from vendor's website.