IBM LoopBack (IBM API Connect 2018.1, 2018.4.1, 5.0.8.0, and 5.0.8.4) could allow an attacker to bypass authentication if the AccessToken Model is exposed over a REST API, it is then possible for anyone to create an AccessToken for any User provided they know the userId and can hence get access to the other user’s data / access to their privileges (if the user happens to be an Admin for example). IBM X-Force ID: 148801.

IBM API Connect 5.0.0.0 through 5.0.8.4 allows a user with limited 'API Administrator level access to give themselves full 'Administrator' level access through the members functionality. IBM X-Force ID: 153914.

IBM API Connect 5.0.0.0 through 5.0.8.4 could allow a user authenticated as an administrator with limited rights to escalate their privileges. IBM X-Force ID: 151258.

IBM API Connect 5.0.0.0 through 5.0.8.4 is impacted by sensitive information disclosure via a REST API that could allow a user with administrative privileges to obtain highly sensitive information. IBM X-Force ID: 154031.

IBM API Connect 5.0.0.0 through 5.0.8.4 is affected by a vulnerability in the role-based access control in the management server that could allow an authenticated user to obtain highly sensitive information. IBM X-Force ID: 153175.