GRID Organiser App co.gridapp.organiser app.json hard-coded key

A vulnerability was found in GRID Organiser App up to 1.0.5 on Android. Impacted is an unknown function of the file file res/raw/app.json of the component co.gridapp.organiser. Performing a manipulation of the argument SegmentWriteKey results in use of hard-coded cryptographic key . The attack is only possible with local access. The exploit has been made public and could be used.