[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"repo-stars":3,"vuln-UBUNTU-CVE-2021-30159":6},{"stargazers_count":4,"fetched_at":5},7,"2026-06-05T08:55:32.481Z",{"id":7,"descriptions":8,"cisa":9,"weaknesses":10,"exploits":11,"aliases":12,"duplicate_of":9,"upstream":13,"downstream":16,"duplicates":17,"related":18,"reserved_at":9,"published_at":19,"modified_at":20,"state":9,"summary":21,"references_raw":23,"kevs":46,"epss":9,"epss_history":47,"metrics":48,"affected":55},"UBUNTU-CVE-2021-30159","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.",null,[],[],[],[14],{"_key":15},"CVE-2021-30159",[],[],[],"2021-04-09T07:15:00Z","2026-05-27T10:16:07.030713034Z",{"cisa_kev":22,"cisa_ransomware":22,"cisa_vendor":9,"epss_severity":9,"epss_score":9,"severity":9,"severity_score":9,"severity_version":9,"severity_source":9,"severity_vector":9,"severity_status":9},false,[24,30,34,38,42],{"url":25,"sources":26,"tags":28},"https://ubuntu.com/security/CVE-2021-30159",[27],"osv_ubuntu",[29],"REPORT",{"url":31,"sources":32,"tags":33},"https://phabricator.wikimedia.org/T272386",[27],[29],{"url":35,"sources":36,"tags":37},"https://lists.wikimedia.org/pipermail/wikitech-l/2021-April/094418.html",[27],[29],{"url":39,"sources":40,"tags":41},"https://gerrit.wikimedia.org/r/plugins/gitiles/mediawiki/core/+/49ce7dd2143d01cffd4dfd2f2af79b2b93672eac%5E%21/",[27],[29],{"url":43,"sources":44,"tags":45},"https://www.cve.org/CVERecord?id=CVE-2021-30159",[27],[29],[],[],[49],{"source":27,"cvss_v2_0":9,"cvss_v3_0":9,"cvss_v3_1":50,"cvss_v4_0":9},{"baseScore":51,"baseSeverity":9,"vectorString":52,"impactScore":53,"exploitabilityScore":54},4.3,"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",2.3,7.2,[56],{"ecosystem":57,"name":58,"vendor":59,"product":58,"cpe_part":9,"purl_type":60,"purl_namespace":59,"purl_name":58,"source":9,"versions":61},"Ubuntu","mediawiki","ubuntu","deb",[62,66,67,68,69,70],{"version":63,"is_range":64,"range_type":65,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},"all",true,"ecosystem",{"version":63,"is_range":64,"range_type":65,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":63,"is_range":64,"range_type":65,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":63,"is_range":64,"range_type":65,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":63,"is_range":64,"range_type":65,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9},{"version":63,"is_range":64,"range_type":65,"version_start":9,"version_start_type":9,"version_end":9,"version_end_type":9,"fixed_in":9}]