xxyopen/201206030 novel-plus User Management Module UserMapper.xml list sql injection

A vulnerability has been found in xxyopen/201206030 novel-plus up to 5.1.3 and classified as critical. This vulnerability affects the function list of the file novel-admin/src/main/resources/mybatis/system/UserMapper.xml of the component User Management Module. The manipulation of the argument sort/order leads to sql injection. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.