Insufficient File type validation in SAP BusinessObjects Business Intelligence Platform (Web Intelligence HTML interface)

Due to insufficient file type validation, SAP BusinessObjects Business Intelligence Platform (Web Intelligence HTML interface) - version 420, allows a report creator to upload files from local system into the report over the network. When uploading the image file, an authenticated attacker could intercept the request, modify the content type and the extension to read and modify sensitive data causing a high impact on confidentiality and integrity of the application.