An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. A title blocked by AbuseFilter can be created via Special:ChangeContentModel due to the mishandling of the EditFilterMergedContent hook return value.
Created mediawiki tracking bugs for this issue:
Affects: fedora-all [bug 2156327]
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):