Title::newMainPage() goes into an infinite recursion loop if it points to a local interwiki (CVE-2022-28201).
Messages widthheight/widthheightpage/nbytes not escaped when used in galleries or Special:RevisionDelete (CVE-2022-28202).
Requesting Special:NewFiles on a wiki with many file uploads with actor as a condition can result in a DoS (CVE-2022-28203).
Special:WhatLinksHere can result in a DoS when a page is used on a extremely large number of other pages (CVE-2022-28204).