Zenoss Core through 5 Beta 3 stores cleartext passwords in the session database, which might allow local users to obtain sensitive information by reading database entries, aka ZEN-15416.
https://docs.google.com/spreadsheets/d/1dHAc4PxUbs-4Dxzm1wSCE0sMz5UCMY6SW3PlMHSyuuQ/edit?usp=sharing