WebUI in qBittorrent before 3.3.11 did not escape many values, which could potentially lead to XSS.
{ "binaries": [ { "binary_name": "qbittorrent", "binary_version": "3.3.1-1" }, { "binary_name": "qbittorrent-nox", "binary_version": "3.3.1-1" } ] }