{"id":"CVE-2021-30153","details":"An issue was discovered in the VisualEditor extension in MediaWiki before 1.31.13, and 1.32.x through 1.35.x before 1.35.2. . When using VisualEditor to edit a MediaWiki user page belonging to an existing, but hidden, user, VisualEditor will disclose that the user exists. (It shouldn't because they are hidden.) This is related to ApiVisualEditor.","aliases":["BIT-mediawiki-2021-30153"],"modified":"2026-04-10T04:32:04.454150Z","published":"2023-04-15T20:16:00.570Z","references":[{"type":"WEB","url":"https://lists.wikimedia.org/hyperkitty/list/wikitech-l%40lists.wikimedia.org/message/XYBF5RSTJRMVCP7QBYK7643W75A3KCIY/"},{"type":"FIX","url":"https://lists.wikimedia.org/pipermail/wikitech-l/2021-April/094418.html"},{"type":"EVIDENCE","url":"https://phabricator.wikimedia.org/T270453"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wikimedia/mediawiki","events":[{"introduced":"0"},{"fixed":"dc63efabf7afc624f5e1f06478b91182bfecaad4"},{"introduced":"0fbb878ef366477535a709b0c2564bdcf4b176d1"},{"fixed":"e5823c068a2e0d8af72538fe5cd152ddb43c58e9"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.31.13"},{"introduced":"1.32.0"},{"fixed":"1.35.2"}]}}],"versions":["1.1.0","1.3.0beta1","1.31.0","1.31.0-rc.0","1.31.0-rc.1","1.31.0-rc.2","1.31.1","1.31.10","1.31.11","1.31.12","1.31.2","1.31.3","1.31.4","1.31.5","1.31.6","1.31.7","1.31.8","1.31.9","1.35.0","1.35.0-rc.0","1.35.0-rc.1","1.35.0-rc.2","1.35.0-rc.3","1.35.1","1.5.0alpha1","1.5.0alpha2","1.5.0beta1","1.5.0beta2","1.5.0beta3","1.5.0beta4","1.6.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-30153.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"}]}