The host is installed with MOVEit Transfer 2019.1.x before 2019.1.4 (11.1.4) or 2019.2.x before 2019.2.1 (11.2.1) and is prone to a cross site scripting vulnerability. A flaw is present in the application, which fails to properly handle REST API. Successful exploitation could allow an authenticated attacker to execute arbitrary code in a victim's browser.