{"id":"CVE-2020-12137","details":"GNU Mailman 2.x before 2.1.30 uses the .obj extension for scrubbed application/octet-stream MIME parts. This behavior may contribute to XSS attacks against list-archive visitors, because an HTTP reply from an archive web server may lack a MIME type, and a web browser may perform MIME sniffing, conclude that the MIME type should have been text/html, and execute JavaScript code.","modified":"2026-03-15T22:33:05.536705Z","published":"2020-04-24T13:15:11.780Z","related":["MGASA-2020-0276","SUSE-SU-2020:1301-1","SUSE-SU-2020:14356-1","openSUSE-SU-2020:1707-1","openSUSE-SU-2020:1752-1"],"references":[{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6YCMGTTOXXCVM4O6CYZLTZDX6YLYORNF/"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4COSBBEMJYLV7WSW5QTUJUOFJFK47KK/"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00047.html"},{"type":"ADVISORY","url":"http://lists.opensuse.org/opensuse-security-announce/2020-10/msg00063.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4348-1/"},{"type":"ADVISORY","url":"http://bazaar.launchpad.net/~mailman-coders/mailman/2.1/view/head:/NEWS"},{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2020/04/24/3"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/05/msg00002.html"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4664"},{"type":"ADVISORY","url":"https://www.openwall.com/lists/oss-security/2020/02/24/2"},{"type":"ADVISORY","url":"https://www.openwall.com/lists/oss-security/2020/02/24/3"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"2.0"},{"fixed":"2.1.30"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"31"}]},{"events":[{"introduced":"0"},{"last_affected":"32"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"15.0-sp2"}]},{"events":[{"introduced":"0"},{"last_affected":"15.2"}]},{"events":[{"introduced":"2.x"},{"fixed":"2.1.30"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12137.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}