Advisory Weakness Curation

Contao Insert tag injection in forms ### Impact It is possible to inject insert tags in front end forms which will be replaced when the page is rendered. ### Patches Update to Contao 4.4.52, 4.9.6 or 4.10.1. ### Workarounds Disable the front end login form and do not use form fields with array keys such as `fieldname[]`. ### References https://contao.org/en/security-advisories/insert-tag-injection-in-forms ### For more information If you have any questions or comments about this advisory, open an issue in contao/contao https://github.com/contao/contao/issues/new/choose.

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') Contao before 4.4.52, 4.9.x before 4.9.6, and 4.10.x before 4.10.1 have Improper Input Validation. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.

Contao suffers from an Improper Input Validation flaw. It is possible to inject insert tags in front end forms which will be replaced when the page is rendered.