An issue was discovered in the CheckUser extension for MediaWiki through 1.39.x. Various components of this extension can expose information on the performer of edits and logged actions. This information should not allow public viewing: it is supposed to be viewable only by users with checkuser access. https://phabricator.wikimedia.org/T311337
Created mediawiki tracking bugs for this issue: Affects: fedora-all [bug 2163611]
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2022-39193