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 canonical URLs
by Leo Feyer
Date: 2024-09-17
CVE ID: CVE-2024-45612
It is possible to inject insert tags in canonical URLs which will be replaced when the page is rendered.
Affected versions
Contao 4.13 up to 4.13.48
Contao 5.0
Contao 5.1
Contao 5.2
Contao 5.3 up to 5.3.14
Contao 5.4 up to 5.4.2
Suggested solution
Upgrade to Contao 4.13.49, 5.3.15 or 5.4.3.
Workaround
Disable canonical tags in the settings of the website root page.
More information
https://github.com/contao/contao/security/advisories/GHSA-2xpq-xp6c-5mgj
