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.
                
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Affected Vendors & Products
References
        History
                    No history.
 MITRE
                        MITRE
                    Status: PUBLISHED
Assigner: mitre
Published: 2020-12-18T07:30:48
Updated: 2024-08-04T17:02:08.056Z
Reserved: 2020-12-16T00:00:00
Link: CVE-2020-35474
 Vulnrichment
                        Vulnrichment
                    No data.
 NVD
                        NVD
                    Status : Modified
Published: 2020-12-18T08:15:15.060
Modified: 2024-11-21T05:27:21.877
Link: CVE-2020-35474
 Redhat
                        Redhat