{"id":"CVE-2019-19709","aliases":["DEBIAN-CVE-2019-19709","DSA-4592-1","EUVD-2022-4790","GHSA-pjv5-vv93-p648","MGASA-2020-0021","UBUNTU-CVE-2019-19709"],"status":"published","title":"Possible to circumvent title-blacklist","description":"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.","severity":{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-09","score":0.01564,"percentile":0.75469,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-601"],"published":"2019-12-11T01:33:11Z","modified":"2026-10-24T10:30:47Z","fixes":[{"ecosystem":"Packagist","package":"mediawiki/core","fixed_in":["1.31.6","1.32.6","1.33.2","1.34.0"],"sources":["ghsa","osv"]},{"ecosystem":"Debian:12","package":"mediawiki","fixed_in":["1:1.31.6-1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"mediawiki","fixed_in":["1:1.31.6-1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"mediawiki","fixed_in":["1:1.31.6-1"],"sources":["osv"]},{"ecosystem":"Debian:9","package":"mediawiki","fixed_in":["1:1.27.7-1~deb9u3"],"sources":["osv"]},{"ecosystem":"Debian:10","package":"mediawiki","fixed_in":["1:1.31.6-1~deb10u1"],"sources":["osv"]},{"ecosystem":"Mageia:7","package":"mediawiki","fixed_in":["1.31.6-1.mga7"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"mediawiki/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.31.0"},{"fixed":"1.31.6"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"mediawiki/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.32.0"},{"fixed":"1.32.6"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"mediawiki/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.33.0"},{"fixed":"1.33.2"}]}]},{"source":"ghsa","ecosystem":"Packagist","package":"mediawiki/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.33.99"},{"fixed":"1.34.0"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.31.6-1"}]}]},{"source":"osv","ecosystem":"Debian:13","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.31.6-1"}]}]},{"source":"osv","ecosystem":"Debian:14","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.31.6-1"}]}]},{"source":"osv","ecosystem":"Debian:9","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.27.7-1~deb9u3"}]}],"versions":["1:1.27.3-1","1:1.27.4-1","1:1.27.4-1~bpo8+1","1:1.27.4-1~deb9u1","1:1.27.4-2","1:1.27.4-3","1:1.27.5-1~deb9u1","1:1.27.6-1~deb9u1","1:1.27.7-1~deb9u1","1:1.27.7-1~deb9u2"]},{"source":"osv","ecosystem":"Debian:10","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:1.31.6-1~deb10u1"}]}],"versions":["1:1.31.2-1","1:1.31.4-1","1:1.31.4-1~deb10u1","1:1.31.5-1","1:1.31.5-2","1:1.31.5-3"]},{"source":"osv","ecosystem":"Packagist","package":"mediawiki/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.31.0"},{"fixed":"1.31.6"}]}],"versions":["1.31.0","1.31.1","1.31.2","1.31.3","1.31.4","1.31.5"]},{"source":"osv","ecosystem":"Packagist","package":"mediawiki/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.32.0"},{"fixed":"1.32.6"}]}],"versions":["1.32.0","1.32.1","1.32.2","1.32.3","1.32.4","1.32.5"]},{"source":"osv","ecosystem":"Packagist","package":"mediawiki/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.33.0"},{"fixed":"1.33.2"}]}],"versions":["1.33.0","1.33.1"]},{"source":"osv","ecosystem":"Packagist","package":"mediawiki/core","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.33.99"},{"fixed":"1.34.0"}]}],"versions":["1.34.0-rc.0","1.34.0-rc.1"]},{"source":"osv","ecosystem":"Mageia:7","package":"mediawiki","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.31.6-1.mga7"}]}]},{"source":"osv","ecosystem":"Ubuntu:18.04:LTS","package":"mediawiki","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"]}],"products":[{"vendor":"debian","product":"debian_linux"},{"vendor":"mediawiki","product":"mediawiki"}],"references":[{"url":"https://phabricator.wikimedia.org/T239466","tags":["x_refsource_MISC","x_transferred","Exploit","Vendor Advisory","evidence","web","report"]},{"url":"https://gerrit.wikimedia.org/r/q/Ie54f366986056c876eade0fcad6c41f70b8b8de8","tags":["x_refsource_MISC","x_transferred","Exploit","Vendor Advisory","evidence","web","report"]},{"url":"https://www.debian.org/security/2019/dsa-4592","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://seclists.org/bugtraq/2019/Dec/48","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2019-19709","tags":["advisory"]},{"url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/mediawiki/core/CVE-2019-19709.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-pjv5-vv93-p648"},{"url":"https://security-tracker.debian.org/tracker/CVE-2019-19709","tags":["advisory"]},{"url":"https://github.com/wikimedia/mediawiki","tags":["package"]},{"url":"https://advisories.mageia.org/MGASA-2020-0021.html","tags":["advisory"]},{"url":"https://bugs.mageia.org/show_bug.cgi?id=25986","tags":["report"]},{"url":"https://lists.wikimedia.org/pipermail/mediawiki-announce/2019-December/000243.html","tags":["web"]},{"url":"https://ubuntu.com/security/CVE-2019-19709","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2019-19709","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2019-19709","description":"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.","status":"published","published":"2019-12-11T01:33:11Z","modified":"2024-08-05T02:25:12.12Z","updated_at":"2026-11-02T14:20:21.059499Z"}],"euvd":[{"id":"EUVD-2022-4790","description":"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.","status":"published","published":"2019-12-11T01:33:11Z","modified":"2024-08-05T02:25:12Z","updated_at":"2026-11-03T02:40:23.78072Z"}],"ghsa":[{"id":"GHSA-pjv5-vv93-p648","title":"Possible to circumvent title-blacklist","description":"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.","status":"published","published":"2022-05-24T17:03:17Z","modified":"2024-05-15T22:50:40Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:37:49.987036Z"}],"nvd":[{"id":"CVE-2019-19709","description":"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.","status":"published","published":"2019-12-11T02:15:14.81Z","modified":"2026-06-17T02:27:07.84Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":5.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T14:05:40.258829Z"}],"osv":[{"id":"CVE-2019-19709","description":"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.","status":"published","published":"2019-12-11T02:15:14.81Z","modified":"2026-10-24T10:30:47.525716857Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:12.010761Z"},{"id":"DEBIAN-CVE-2019-19709","description":"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.","status":"published","published":"2019-12-11T02:15:14.81Z","modified":"2026-09-21T07:03:03.459632308Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:45:32.221385Z"},{"id":"GHSA-pjv5-vv93-p648","title":"Possible to circumvent title-blacklist","description":"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.","status":"published","published":"2022-05-24T17:03:17Z","modified":"2024-05-19T02:24:42.603593Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-601"],"updated_at":"2026-11-02T15:46:53.244788Z"},{"id":"UBUNTU-CVE-2019-19709","description":"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.","status":"published","published":"2019-12-11T02:15:00Z","modified":"2025-10-24T04:48:05Z","cvss":[{"version":"3.1","score":6.1,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:54:20.325378Z"},{"id":"DSA-4592-1","title":"mediawiki - security update","status":"published","published":"2019-12-26T00:00:00Z","modified":"2026-03-09T02:09:45.282289Z","updated_at":"2026-11-02T15:46:17.19998Z"},{"id":"MGASA-2020-0021","title":"Updated mediawiki packages fix security vulnerability","description":"Updated mediawiki packages fix security vulnerability:\n\nMediaWiki through 1.33.1 allows attackers to bypass the Title_blacklist\nprotection mechanism by starting with an arbitrary title, establishing\na non-resolvable redirect for the associated page, and using redirect=1\nin the action API when editing that page (CVE-2019-19709).\n","status":"published","published":"2020-01-05T15:37:51Z","modified":"2026-04-16T04:41:16.521318622Z","updated_at":"2026-11-02T15:49:41.151324Z"}]}}