macrozheng mall-swarm/mall cancelUserOrder improper authorization

A weakness has been identified in macrozheng mall-swarm and mall up to 1.0.3. Affected is the function cancelUserOrder of the file /order/cancelUserOrder. Executing manipulation of the argument orderId can lead to improper authorization. It is possible to launch the attack remotely. The exploit has been made available to the public and could be exploited. The vendor was contacted early about this disclosure but did not respond in any way.