Submitty through 20.04.01 has an open redirect via authentication/login?old= during an invalid login attempt. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available and no vendor patch available.
Open Redirect
Submitty
NVD
GitHub
CVSS 3.1
6.1
EPSS
3.5%