A reflected cross site scripting (XSS) vulnerability in Junos Space may potentially allow a remote authenticated user to inject web script or HTML and steal sensitive data and credentials from a session, and to perform administrative actions on the Junos Space network management device.

A malicious authenticated user may be able to delete a device from the Junos Space database without the necessary privileges through crafted Ajax interactions obtained from another legitimate delete action performed by another administrative user. Affected releases are Juniper Networks Junos Space versions prior to 18.3R1.