The VisualEditor extension through 1.34 for MediaWiki allows XSS via pasted content containing an element with a data-ve-clipboard-key attribute.
Created mediawiki tracking bugs for this issue: Affects: fedora-all [bug 1809047]
Upstream Issue: https://phabricator.wikimedia.org/T239209
Statement: The VisualEditor extension of MediaWiki is not included in OpenShift Container Platform.
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-2019-19708