{"id":"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.","aliases":["GHSA-7mqg-5fgh-xh4r"],"modified":"2026-04-16T04:43:04.150227580Z","published":"2019-07-10T16:15:11.227Z","references":[{"type":"REPORT","url":"https://phabricator.wikimedia.org/T199540"},{"type":"FIX","url":"https://lists.wikimedia.org/pipermail/wikitech-l/2019-June/092152.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/wikimedia/mediawiki","events":[{"introduced":"6a5b1dec913d4566acd6b0e31fbde212deccf001"},{"fixed":"b1558252c5478239b6ecc6d1950f07f938b12604"},{"introduced":"830bb58fa2d24eb93d45135c6becd53f6c50d491"},{"fixed":"49fde28a202bfbc89650908d8f5b55339d4bc8b6"},{"introduced":"5cfc9accca2cc2fb94060c309d562913b7bed57c"},{"fixed":"5951e3e30351dbef4afaceccad415b7702d49bc0"},{"introduced":"0fbb878ef366477535a709b0c2564bdcf4b176d1"},{"fixed":"a720399187069dd4134bdbcc33bce3fc09b7b658"}],"database_specific":{"versions":[{"introduced":"1.18.0"},{"fixed":"1.27.6"},{"introduced":"1.30.0"},{"fixed":"1.30.2"},{"introduced":"1.31.0"},{"fixed":"1.31.2"},{"introduced":"1.32.0"},{"fixed":"1.32.2"}]}}],"versions":["1.30.0","1.30.1","1.31.0","1.31.1","1.32.0","1.32.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-12472.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"}]}