In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, Special:UserRights exposes the existence of hidden users. References: https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048480.html https://lists.wikimedia.org/pipermail/mediawiki-l/2020-September/048488.html https://meta.wikimedia.org/wiki/Special:UserRights
Created mediawiki tracking bugs for this issue: Affects: fedora-all [bug 1903765]
Upstream commit: https://gerrit.wikimedia.org/r/c/mediawiki/core/+/609532
Statement: The mediawiki package was removed from OpenShift Container Platform in version 4.3.
External References: https://phabricator.wikimedia.org/T232568