1902756969 reggie CommonController.java upload unrestricted upload

A vulnerability classified as critical was found in 1902756969 reggie 1.0. Affected by this vulnerability is the function upload of the file src/main/java/com/itheima/reggie/controller/CommonController.java. The manipulation of the argument file leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.