Yshopmall through 2.0.0 contains an insecure direct object reference vulnerability in the member address API that allows authenticated members to read, overwrite and delete other members' shipping addresses. Attackers can enumerate sequential address ids via /address/detail/{id}, /address/del and /address/edit to expose recipient names, phone numbers and addresses, reassign them, or delete them.
yshopmall <=v1.9.0 is vulnerable to SQL Injection in the image listing interface.
yshopmall V1.0 has an arbitrary file upload vulnerability, which can enable RCE or even take over the server when improperly configured to parse JSP files.