Tautulli is a Python based monitoring and tracking tool for Plex Media Server. From version 1.3.10 to before version 2.17.0, an unsanitized JSONP callback parameter allows cross-origin script injection and API key theft. This issue has been patched in version 2.17.0.
Exploitability
AV:NAC:HAT:NPR:NUI:AVulnerable System
VC:HVI:HVA:NSubsequent System
SC:NSI:NSA:N7.4/CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:N/SI:N/SA:NInjection