{"id":"CVE-2020-12051","details":"The CentralAuth extension through REL1_34 for MediaWiki allows remote attackers to obtain sensitive hidden account information via an api.php?action=query&meta=globaluserinfo&guiuser= request. In other words, the information can be retrieved via the action API even though access would be denied when simply visiting wiki/Special:CentralAuth in a web browser.","aliases":["BIT-mediawiki-2020-12051"],"modified":"2026-07-08T12:06:14.782923Z","published":"2020-04-21T22:15:14.900Z","references":[{"type":"ADVISORY","url":"https://gerrit.wikimedia.org/r/#/q/I3c80641dc1202df7428714f0ca44717a51ff6021"},{"type":"FIX","url":"https://phabricator.wikimedia.org/T250594"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wikimedia/mediawiki","events":[{"introduced":"0"},{"fixed":"ba90e337a4a58eb3b2fba43745d8de4a1cdafec1"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"REL1_34"}],"source":"DESCRIPTION"}}],"versions":["1.34.4","1.34.3","1.34.2","1.34.1","1.34.0","1.34.0-rc.1","1.34.0-rc.0","test-hashar-for-ci","1.6.0","1.5.0beta4","1.5.0beta3","1.5.0beta2","1.5.0beta1","1.5.0alpha2","1.5.0alpha1","1.3.0beta1","1.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12051.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}