The SAP BW BICS communication layer in SAP Business Warehouse and SAP BW/4HANA - version SAPBW 730, SAPBW 731, SAPBW 740, SAPBW 730, SAPBW 750, DW4CORE 100, DW4CORE 200, DW4CORE 300, may expose unauthorized cell values to the data response. To be able to exploit this, the user still needs authorizations on the query as well as on the keyfigure/measure level. The missing check only affects the data level.
The BW Database Interface does not perform necessary authorization checks for an authenticated user, resulting in escalation of privileges that allows the user to practically read out any database table.