SoftVision webPDF before 10.0.2 is vulnerable to Server-Side Request Forgery (SSRF). The PDF converter function does not check if internal or external resources are requested in the uploaded files and allows for protocols such as http:// and file:///. This allows an attacker to upload an XML or HTML file in the application, which when rendered to a PDF allows for internal port scanning and Local File Inclusion (LFI).
Weakness
The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.