Firmware upload verification bypass in TXpert Hub CoreTec 4

A vulnerability exists in the file upload validation part of Hitachi Energy TXpert Hub CoreTec 4 product. The vulnerability allows an attacker or malicious agent who manages to gain access to the system and obtain an account with sufficient privilege to upload a malicious firmware to the product. This issue affects: Hitachi Energy TXpert Hub CoreTec 4 version 2.0.0; 2.0.1; 2.1.0; 2.1.1; 2.1.2; 2.1.3; 2.2.0; 2.2.1.