A vulnerability classified as critical was found in QiboSoft QiboCMS X1 up to 1.0.6. Affected by this vulnerability is the function rmb_pay of the file /application/index/controller/Pay.php. The manipulation of the argument callback_class leads to deserialization. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. The associated identifier of this vulnerability is VDB-252847. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.