Product and Software: This article applies to all Aruba controllers and ArubaOS 3.x. and later.
No, guest provisioning role (management) users CANNOT change their passwords by themselves.
This role permits access to configure guest users only in the internal database of the controller.
This user only has access via the WebUI to create guest accounts; there is no CLI access.
Guest-provisioning tasks include creating or generating the user name and password for a guest account as well as configuring when the account expires.
Only the "Root" role allows you to change the management user passwords.