Back in 2003, someone within our company created an intranet information portal using Plone. All known admins for creating new users have since left the company. I'm sure I can eventually find someone with admin privileges on the web server where it's installed, but I suspect they won't know anything about the Plone installation. It continues to run, and existing users who know their passwords can login and make changes to content on the site, but we don't know how to add a new user.
How can I find out what version of Plone is installed?
When I attempt to navigate to internal-domain/directory/of/portal/manage, I get redirected to /insufficient_privileges (I am not logged into the portal, as I don't have an account).
There is a page that allows searching for users, where one can get a list of all users who have ever logged in. The last known admin for the site does not show up in the list of users, so either he was using someone else's account, or he was adding users on the backend without logging into the portal himself.
Are accounts for the Zope Management Interface distinct from Plone user accounts?
I'm guessing that once I find the proper web admin, I need them to follow the instructions given here:
I tried to visit https://plone.org/documentation/faq/locked-out which is referenced in the page above, but that page doesn't exist.
If you have any other tips as to how to regain administrative privileges on an existing Plone site that has been "abandoned" by former admins, I would appreciate it!