Space Permissions Handler for Confluence
Space Permissions Handler helps viewing and copying users' space permissions from one user to another
View user's permissions in all spaces
View user's space permissions for all spaces across Confluence site.
Clone user's permissions to another user
Copy permissions from one user to another for all spaces. Optionally discard permissions originated from groups.
From Admin Console - Users & Security section
Plugin is NOW available for Confluence admins at Admin Console's Users & Security section
Privacy and security