shishuocms ManageUpLoadAction.java handleRequest unrestricted upload

A vulnerability has been found in shishuocms 1.1 and classified as critical. This vulnerability affects the function handleRequest of the file src/main/java/com/shishuo/cms/action/manage/ManageUpLoadAction.java. The manipulation of the argument file leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used.