Zenoss Core through 5 Beta 3 does not include the HTTPOnly flag in a Set-Cookie header for the authentication cookie, which makes it easier for remote attackers to obtain credential information via script access to this cookie, aka ZEN-10418.
https://docs.google.com/spreadsheets/d/1dHAc4PxUbs-4Dxzm1wSCE0sMz5UCMY6SW3PlMHSyuuQ/edit?usp=sharing