CVE-2026-53595 FreeScout vulnerable to anonymous account takeover via /user-setup empty invite_hash on MySQL

FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the public endpoint POST /user-setup/hash/invitesentat OpenController@userSetupSave selects the target account solely by its invitehash column, then overwrites that account's email and...