A flaw has been found in PickMall Lilishop up to 4.2.4. The impacted element is an unknown function of the file /buyer/passport/member/bindMobile of the component Mobile Binding. This manipulation of the argument Username causes improper authorization. It is possible to initiate the attack remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.