A vulnerability has been found in IBOS up to 4.5.4 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /?r=email/api/mark&op=delFromSend. The manipulation of the argument emailids leads to sql injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 4.5.5 is able to address this issue. It is recommended to upgrade the affected component. The associated identifier of this vulnerability is VDB-224635.