Joaldo Junior writes:

Does anyone can inform if is there any kind of function, which a common user can change your password by the same way a superuser can do in ACL_User? Look at the built-in Zope API reference: User object. The User object has methods to read and change the information associated with a user.

These methods are (of cause) protected such that only users with high priviledges can execute them. You will need to set a proxy role for the DTML object that calls them, in order to allow less priviledged users to call them. Dieter