SeaCMS sql injection

A vulnerability was found in SeaCMS 12.9. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /js/player/dmplayer/dmku/?ac=edit. The manipulation of the argument cid with the input (select(0)from(select(sleep(10)))v) leads to sql injection. 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-270007.