auth security issue

There is a heavy security issue that enables you to to log yourself in as another user.

If you start the dialog to invite someone in a private room you can choose a room's title, a user and a password. Then you can generate an invitation url which is supposted to be send via mail to that user to join your room.

That url contains a hash which logs in the invited user automatically.

<URL>/openmeetings/hash?invitation=c0fdb7cb-e0bb-4012-95ba-e658fc25c634&language=2

So by calling that url by yourself you can log in as that invited user (before actually sending the invitation).