jizhiCMS Batch Model.php findAll sql injection

A security vulnerability has been detected in jizhiCMS up to 2.5.6. Affected is the function findAll in the library frphp/lib/Model.php of the component Batch Interface. The manipulation of the argument data leads to sql injection. The attack is possible to be carried out remotely. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.