In MediaWiki before 1.31.10 and 1.32.x through 1.34.x before 1.34.4, Special:UserRights exposes the existence of hidden users.
{ "cpes": [ "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*" ], "severity": "Medium" }
"https://github.com/bitnami/vulndb/tree/main/data/mediawiki/BIT-mediawiki-2020-25813.json"