Umbraco HQ Umbraco CMS input validation error vulnerability

Umbraco HQ: Versions prior to Umbraco CMS 17.7.2 and from 18.0.0 up to 18.2.2 contain an input validation error vulnerability. This vulnerability arises from Host header pollution, allowing unauthenticated attackers to register OAuth redirect URIs under their control. Once they capture code via...