{"id":"UBUNTU-CVE-2019-19709","details":"MediaWiki through 1.33.1 allows attackers to bypass the Title_blacklist protection mechanism by starting with an arbitrary title, establishing a non-resolvable redirect for the associated page, and using redirect=1 in the action API when editing that page.","modified":"2025-10-24T04:48:05Z","published":"2019-12-11T02:15:00Z","upstream":["CVE-2019-19709"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-19709"},{"type":"REPORT","url":"https://gerrit.wikimedia.org/r/q/Ie54f366986056c876eade0fcad6c41f70b8b8de8"},{"type":"REPORT","url":"https://phabricator.wikimedia.org/T239466"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-19709"}],"affected":[{"package":{"name":"mediawiki","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/mediawiki@1:1.27.4-3?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:1.27.3-1","1:1.27.4-1","1:1.27.4-2","1:1.27.4-3"],"ecosystem_specific":{"binaries":[{"binary_name":"mediawiki","binary_version":"1:1.27.4-3"},{"binary_name":"mediawiki-classes","binary_version":"1:1.27.4-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-19709.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},{"type":"Ubuntu","score":"low"}]}