In mainwindow.cpp in Shotcut before 20.09.13, the upgrade check misuses TLS because of setPeerVerifyMode(QSslSocket::VerifyNone). A man-in-the-middle attacker could offer a spoofed download resource.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-24619
Reference (s):
- https://shotcut.org/blog/new-release-200913/
- https://github.com/mltframework/shotcut/commit/f008adc039642307f6ee3378d378cdb842e52c1d