Confluence sharepoint connector allows to view confluence pages to unauthorized users

We want to integrate our confluence with sharepoint server. We are using Sharepoint plugin 1.0.5. And the situation is as follows:

• people in the company are logging in into 2 domains, let say domainA and domainB. They can have identical logins as long as they are not in the same domain.
• confluence authenticates users in domainA
• sharepoint server is domainB, and it has sites with confluence web parts.

• and now, userA in domainA sets restriction to the confuence page "visible only to me"
• userA in domainB can still see the page in sharepoint site (he has the same login, but he is in different domain, it is not the same userA which set restrictions in confluence!)