A vulnerability was found in donglight bookstore电商书城系统说明 1.0. It has been declared as critical. Affected by this vulnerability is the function uploadPicture of the file src/main/java/org/zdd/bookstore/web/controller/admin/AdminBookController. java. The manipulation of the argument pictureFile leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.