{"id":"UBUNTU-CVE-2019-12472","details":"An Incorrect Access Control vulnerability was found in Wikimedia MediaWiki 1.18.0 through 1.32.1. It is possible to bypass the limits on IP range blocks ($wgBlockCIDRLimit) by using the API. Fixed in 1.32.2, 1.31.2, 1.30.2 and 1.27.6.","modified":"2025-10-24T04:47:40Z","published":"2019-07-10T16:15:00Z","upstream":["CVE-2019-12472"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2019-12472"},{"type":"REPORT","url":"https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html"},{"type":"REPORT","url":"https://phabricator.wikimedia.org/T199540"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2019-12472"}],"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_version":"1:1.27.4-3","binary_name":"mediawiki"},{"binary_version":"1:1.27.4-3","binary_name":"mediawiki-classes"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2019/UBUNTU-CVE-2019-12472.json"}}],"schema_version":"1.7.3","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}