Security advisories

Here you will find a list of vulnerabilities that have already been found and fixed in Contao. If you think that you have found a security issue in Contao, please report it according to our security policy.

Viewing unauthorized records in the back end

2018-12-13 14:12 by Leo Feyer

Date: 2018-12-13
CVE ID: CVE-2018-20028

Logged in back end users can view records which have not been enabled for them. The problem affects all Contao versions and has been fixed in Contao 3.5.37, 4.4.31 and 4.6.11.

Arbitrary code execution in TCPDF

2018-09-18 10:29 by Leo Feyer

Date: 2018-09-18
CVE ID: CVE-2018-17057

A vulnerability in TCPDF allows for arbitrary code execution. The problem affects all Contao versions and has been fixed in Contao 3.5.36, 4.4.25 and 4.6.4.

Cross site scripting in the system log

2018-04-18 09:23 by Leo Feyer

Date: 2018-04-18
CVE ID: CVE-2018-10125

The system log is vulnerable to cross site scripting in the back end. The problem affects all Contao versions and has been fixed in Contao 3.5.34, 4.4.17 and 4.5.7.

SQL injection in the newsletter module

2018-01-18 09:36 by Leo Feyer

Date: 2018-01-18
CVE ID: CVE-2018-5478

The newsletter module "unsubscribe" is vulnerable to SQL injections. The problem affects all Contao versions and has been fixed in Contao 3.5.31.

SQL injection in the back end search filter and the listing module

2017-11-15 08:51 by Leo Feyer

Date: 2017-11-15
CVE ID: CVE-2017-16558

The back end search filter and the listing module are vulnerable to SQL injections. The problem affects all Contao versions as of Contao 4.0 and has been fixed in Contao 4.4.8.

PHP file inclusion in the back end

2017-07-12 09:09 by Leo Feyer

Date: 2017-07-12
CVE ID: CVE-2017-10993

A logged in back end user can include arbitrary existing PHP. The problem affects all Contao versions and has been fixed in Contao 3.5.27 and 4.4.0.

Directory traversal in the back end

2015-02-12 13:44 by Leo Feyer

Date: 2015-02-12
CVE ID: CVE-2015-0269

Back end users can list files outside their file mounts or the document root. The problem affects all Contao versions and has been fixed in Contao 3.4.4.