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GoogleOSV:CVE-2020-35480HistoryDec 18, 2020 - 8:15 a.m.
CVE-2020-35480
2020-12-1808:15:15
Google
osv.dev
10
mediawiki
sensitive information
hidden users
An issue was discovered in MediaWiki before 1.35.1. Missing users (accounts that don’t exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers. This exists on various code paths.
References
lists.debian.org/debian-lts-announce/2020/12/msg00034.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/
lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html
phabricator.wikimedia.org/T120883
www.debian.org/security/2020/dsa-4816
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