An issue was discovered in MediaWiki before 1.35.11, 1.36.x through 1.38.x before 1.38.7, and 1.39.x before 1.39.4. BlockLogFormatter.php in BlockLogFormatter allows XSS in the partial blocks feature.
{ "severity": "Medium", "cpes": [ "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*" ] }