{"id":"BIT-mediawiki-2021-30159","details":"An issue was discovered in MediaWiki before 1.31.12 and 1.32.x through 1.35.x before 1.35.2. Users can bypass intended restrictions on deleting pages in certain \"fast double move\" situations. MovePage::isValidMoveTarget() uses FOR UPDATE, but it's only called if Title::getArticleID() returns non-zero with no special flags. Next, MovePage::moveToInternal() will delete the page if getArticleID(READ_LATEST) is non-zero. Therefore, if the page is missing in the replica DB, isValidMove() will return true, and then moveToInternal() will unconditionally delete the page if it can be found in the master.","aliases":["CVE-2021-30159"],"modified":"2025-04-03T14:40:37.652Z","published":"2024-03-06T11:12:32.497Z","database_specific":{"cpes":["cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*"],"severity":"Medium"},"references":[{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00003.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/05/msg00006.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/26UJGHF7LJDOCQN6A3Z4PM7PYRKENJHE/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2OMSV7B2TCFBOCICN3B4SMQP5HVRJQIT/"},{"type":"WEB","url":"https://phabricator.wikimedia.org/T272386"},{"type":"WEB","url":"https://security.gentoo.org/glsa/202107-40"},{"type":"WEB","url":"https://www.debian.org/security/2021/dsa-4889"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-30159"}],"affected":[{"package":{"name":"mediawiki","ecosystem":"Bitnami","purl":"pkg:bitnami/mediawiki"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.31.12"},{"introduced":"1.32.0"},{"fixed":"1.35.2"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/mediawiki/BIT-mediawiki-2021-30159.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}],"schema_version":"1.7.3"}