You could do it with the REST api if you are programatically inclined. Or if this is a one off kind of thing you ould try an add-on from the marketplace that could do it. I've provided a link below (I've no affiliation with them).
Just for anyone else looking for this as I spend a few days trying to find something to do this easily with.
Two vulnerabilities have been published for Confluence Server and Data Center recently: March 20, 2019 CVE-2019-3395 / CVE-2019-3396 April 17, 2019 CVE-2019-3398 The goal of this article is...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs