October 3.6.30 allows an authenticated admin account to upload a PDF file containing malicious JavaScript into the target system. If the file is accessed through the website, it could lead to a Cross-Site Scripting (XSS) attack or execute arbitrary code via a crafted JavaScript to the target.
The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.