In Userfrosting, versions v0.3.1 to v4.6.2 are vulnerable to Host Header Injection. By luring a victim application user to click on a link, an unauthenticated attacker can use the “forgot password” functionality to reset the victim’s password and successfully take over their account.
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25994
https://github.com/userfrosting/UserFrosting/commit/796dd78757902435d1bd286415feea78098e45ba