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.
Insert tag injection via the form generator
by Leo Feyer
Date: 2024-04-09
CVE ID: CVE-2024-28191
It is possible to inject insert tags via the form generator if the submitted form data is output on the page in a specific way.
Affected versions
Contao 4.0
Contao 4.1
Contao 4.2
Contao 4.3
Contao 4.4
Contao 4.5
Contao 4.6
Contao 4.7
Contao 4.8
Contao 4.9
Contao 4.10
Contao 4.11
Contao 4.12
Contao 4.13 up to 4.13.39
Contao 5.0
Contao 5.1
Contao 5.2
Contao 5.3 up to 5.3.3
Suggested solution
Upgrade to Contao 4.13.40 or 5.3.4.
Workaround
Do not output the submitted form data on the website.
More information
https://github.com/contao/contao/security/advisories/GHSA-747v-52c4-8vj8
