{"id":"CVE-2020-35477","details":"MediaWiki before 1.35.1 blocks legitimate attempts to hide log entries in some situations. If one sets MediaWiki:Mainpage to Special:MyLanguage/Main Page, visits a log entry on Special:Log, and toggles the \"Change visibility of selected log entries\" checkbox (or a tags checkbox) next to it, there is a redirection to the main page's action=historysubmit (instead of the desired behavior in which a revision-deletion form appears).","aliases":["BIT-mediawiki-2020-35477"],"modified":"2026-03-20T11:37:22.238703Z","published":"2020-12-18T08:15:15.230Z","related":["MGASA-2021-0086"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/STT5Z4A3BCXVH3WIPICWU2FP4IPIMUPC/"},{"type":"ADVISORY","url":"https://lists.wikimedia.org/pipermail/mediawiki-announce/2020-December/000268.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4816"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html"},{"type":"REPORT","url":"https://phabricator.wikimedia.org/T205908"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wikimedia/mediawiki","events":[{"introduced":"0"},{"fixed":"3e26b5ff1468f98cf306575d125b29a6645bf2ea"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"1.35.1"}]}}],"versions":["1.1.0","1.3.0beta1","1.35.0","1.35.0-rc.0","1.35.0-rc.1","1.35.0-rc.2","1.35.0-rc.3","1.5.0alpha1","1.5.0alpha2","1.5.0beta1","1.5.0beta2","1.5.0beta3","1.5.0beta4","1.6.0"],"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"33"}]}],"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-35477.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:N/I:L/A:N"}]}