Detections
Analytics
CVE-2021-30153
medium
Description
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.
References
https://phabricator.wikimedia.org/T270453
https://lists.wikimedia.org/pipermail/wikitech-l/2021-April/094418.html