Beijing Yunfan Internet Technology Yunfan Learning Examination System doc.html improper authorization

A vulnerability was found in Beijing Yunfan Internet Technology Yunfan Learning Examination System 1.9.2. It has been rated as critical. This issue affects some unknown processing of the file /doc.html. The manipulation leads to improper authorization. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.