Contao is a powerful open source CMS that allows you to create professional websites and scalable web applications. In versions of Contao prior to 4.13.3 it is possible to inject code into the canonical tag. As a workaround users may disable canonical tags in the root page settings.
| Package (Ecosystem) | Introduced | Fixed | Limit |
|---|---|---|---|
| contao/core-bundle(Packagist) | 4.13.0 | 4.13.3 | N/A |
| contao/contao(Packagist) | 4.13.0 | 4.13.3 | N/A |
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