{"id":"UBUNTU-CVE-2021-45038","details":"An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. By using an action=rollback query, attackers can view private wiki contents.","modified":"2025-07-16T08:15:59.438205Z","published":"2021-12-17T04:15:00Z","withdrawn":"2025-07-18T16:47:04Z","upstream":["CVE-2021-45038"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2021-45038"},{"type":"REPORT","url":"https://phabricator.wikimedia.org/T297574"},{"type":"REPORT","url":"https://lists.wikimedia.org/hyperkitty/list/wikitech-l@lists.wikimedia.org/thread/QEN3EK4JXAVJMJ5GF3GYOAKNJPEKFQYA/"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2021-45038"}],"affected":[{"package":{"name":"mediawiki","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/mediawiki@1:1.35.5-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.35.5-1"}]}],"versions":["1:1.35.3-1","1:1.35.4-1"],"ecosystem_specific":{"binaries":[{"binary_name":"mediawiki","binary_version":"1:1.35.5-1"},{"binary_name":"mediawiki-classes","binary_version":"1:1.35.5-1"}],"availability":"No subscription required"},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-45038.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},{"type":"Ubuntu","score":"medium"}]}