by Leo Feyer
Unrestricted file uploads
Date: 2019-12-17
CVE ID: CVE-2019-19745
Description
A back end user with access to the form generator can upload arbitrary files and execute them on the server.
Affected versions
Contao 4.0
Contao 4.1
Contao 4.2
Contao 4.3
Contao 4.4 up to 4.4.45
Contao 4.5
Contao 4.6
Contao 4.7
Contao 4.8 up to 4.8.5
Suggested solution
Update to Contao 4.4.46 or 4.8.6.
Workaround
Configure your web server so it does not execute PHP files and other scripts in the Contao file upload directory.