iExpense receipt file upload content checking

After a recent security audit it was identified that the file upload on the iExpense report line does not perform content checking on the file meaning malicious payloads could be delivered via this channel. Does a method exist within the application to employ some form of content check when a file is uploaded? I am already aware of the profile option that allows me to stop any uploads but with the drive to reduce waste removing the ability to upload receipts electronically would feel like a retrograde step too far.