Security advisories

Here you will find a list of vulnerabilities that have already been found and fixed in Contao.

Unrestricted file uploads

Date: 2019-12-17
CVE ID: CVE-2019-19745


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.


Configure your web server so it does not execute PHP files and other scripts in the Contao file upload directory.

Back to the overview.

Security policy

If you think that you have found a se­cu­ri­ty is­sue in Con­tao, please re­port it ac­cor­ding to our se­cu­ri­ty poli­cy.