AI Score
Confidence
High
EPSS
Percentile
47.8%
In MediaWiki before 1.35.1, the combination of Html::rawElement and Message::text leads to XSS because the definition of MediaWiki:recentchanges-legend-watchlistexpiry can be changed onwiki so that the output is raw HTML.
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/
lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html
phabricator.wikimedia.org/T268894