Niushop B2B2C Multi-business basic version V1.11, can bypass the administrator to obtain the background upload interface, through parameter upload, bypass the getimagesize function, upload php file, getshell.Referenceshttps://github.com/bluecity/CMS/blob/master/niushop%20v1.1-upload/Niushop%20Multi-business%20V1.11-en.md
