{"id":"CVE-2019-19709","aliases":["GHSA-pjv5-vv93-p648"],"url":"https://o3.security/vulnerability/CVE-2019-19709","summary":"Possible to circumvent title-blacklist","details":"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.","published":"2019-12-11T02:15:14.810Z","modified":"2026-07-08T05:54:59.258184837Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.01564,"percentile":0.72967,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":2,"affectedPackages":[{"ecosystem":"Packagist","name":"mediawiki/core","fixedVersion":"1.31.6"},{"ecosystem":"Packagist","name":"mediawiki/core","fixedVersion":"1.32.6"},{"ecosystem":"Packagist","name":"mediawiki/core","fixedVersion":"1.33.2"},{"ecosystem":"Packagist","name":"mediawiki/core","fixedVersion":"1.34.0"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2019/Dec/48"},{"type":"ADVISORY","url":"https://www.debian.org/security/2019/dsa-4592"},{"type":"EVIDENCE","url":"https://gerrit.wikimedia.org/r/q/Ie54f366986056c876eade0fcad6c41f70b8b8de8"},{"type":"EVIDENCE","url":"https://phabricator.wikimedia.org/T239466"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T05:54:59.258184837Z"}}