Incorrect Access Control in the Preview Function of Gleamtech FileVista 9.2.0.0 allows remote attackers to gain unauthorized access via exploiting a vulnerability in access control mechanisms by removing authentication-related HTTP headers, such as the Cookie header, in the request. This bypasses the authentication process and grants attackers access to sensitive image files without proper login credentials.
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.