In Anuko Time Tracker v1.19.23.5311, the password reset link emailed to the user doesn't expire once used, allowing an attacker to use the same link to takeover the account.
https://www.anuko.com/time-tracker/index.htm
https://packetstormsecurity.com/files/160051/Anuko-Time-Tracker-1.19.23.5311-Password-Reset.html