Interact with an XBAP application via VBA

Question

I work for a service request fulfillment team. We have a XBAP tool that runs an application where we do user rights maangement. For each request, I have to search the user in the XBAP application and then do the needful operations. Is there a way we can interact with the XBAP Application from outside the XBAP framework, like VBA and send commands. I'm looking forward to design a solution in Excel using VBA that can loop through the requests. That is the second part however I could not find any information on how can I effectively address the form fields in XBAP. I only have access to the hosted application with no access to source code. The developer tools show no information for the XBAP form fields as this is encapsulated in a secured framework(XAML/WPF). Please help or guide me in the right direction.