ManageEngine Applications Manager 12 and 13 is vulnerable to privilege escalation and authentication bypass

Summary

In ManageEngine Applications Manager 12 and 13 before build 13200, an authenticated user is able to alter all of their own properties, including own group, i.e. changing their group to one with higher privileges like "ADMIN". A user is also able to change properties of another user, e.g. change another user's password.