froxlor versions before 2.3.12 fail to invalidate existing panel sessions, API keys, and 2FA trust cookies when a user password is changed. Attackers holding hijacked sessions, valid API keys, or 2FA trust tokens retain full account access after password rotation, bypassing incident response actions.
According to WASC, “Insufficient Session Expiration is when a web site permits an attacker to reuse old session credentials or session IDs for authorization.”