Windows qBittorrent 4.5.1 WebUI Vulnerability

The Windows version of qBittorent v4.5.1 has a reported vulnerability when using the web client. A bug allows a remote attacker to browse files on your system.

v4.5.0 may be affected as well.
v4.4.5 and below are not affected by this bug.

The bug is described here. https://github.com/qbittorrent/qBittorrent/issues/18618

If you use the Windows version of qBittorent v4.5.1 and it has a port open to the internet disable the webUI until there is a fix. Or roll back to v4.4.5 or below. If you never enabled the webUI you should be OK since it is off by default.

Thread: Windows qBittorrent 4.5.1 WebUI Vulnerability