Is it possible to use REST or Javascript updateRecord to update personal User Information?

Hello,

we are struggeling with a concept as the user is not allowed to updated his own user Profile using Javascript without having the privilege "Manage Users".

For our Administrators the Script works fine

But if I try to use the "User" object update with the personal userid of a "Standard" user I get a 403 Forbidden error with the Javascript updateRecord Method as well as with the Rest API patch to update the user Profile.

If the user is  using the Standard On Demand User Interface and opens his Personal Profile he is able to update this Information without any issue.