{"id":"CVE-2019-17016","details":"When pasting a <style> tag from the clipboard into a rich text editor, the CSS sanitizer incorrectly rewrites a @namespace rule. This could allow for injection into certain types of websites resulting in data exfiltration. This vulnerability affects Firefox ESR \u003c 68.4 and Firefox \u003c 72.","modified":"2026-03-15T22:30:55.163009Z","published":"2020-01-08T22:15:12.277Z","related":["MGASA-2020-0027","MGASA-2020-0034","SUSE-SU-2020:0068-1","SUSE-SU-2020:0078-1","SUSE-SU-2020:0142-1","SUSE-SU-2020:14268-1","openSUSE-SU-2020:0060-1","openSUSE-SU-2020:0094-1","openSUSE-SU-2024:10600-1","openSUSE-SU-2024:10601-1","openSUSE-SU-2024:14572-1"],"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00029.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00043.html"},{"type":"WEB","url":"http://packetstormsecurity.com/files/155912/Slackware-Security-Advisory-mozilla-thunderbird-Updates.html"},{"type":"WEB","url":"https://seclists.org/bugtraq/2020/Jan/26"},{"type":"WEB","url":"https://usn.ubuntu.com/4241-1/"},{"type":"WEB","url":"https://usn.ubuntu.com/4335-1/"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2020/01/msg00016.html"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-01/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0086"},{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2020/Jan/18"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202003-02"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0085"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0127"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0292"},{"type":"ADVISORY","url":"https://seclists.org/bugtraq/2020/Jan/12"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4603"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0120"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0123"},{"type":"ADVISORY","url":"https://lists.debian.org/debian-lts-announce/2020/01/msg00005.html"},{"type":"ADVISORY","url":"https://usn.ubuntu.com/4234-1/"},{"type":"ADVISORY","url":"https://www.debian.org/security/2020/dsa-4600"},{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-02/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0111"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2020:0295"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1599181"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2019-17016.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"72.0"}]},{"events":[{"introduced":"0"},{"fixed":"68.4"}]},{"events":[{"introduced":"0"},{"last_affected":"8.0"}]},{"events":[{"introduced":"0"},{"last_affected":"9.0"}]},{"events":[{"introduced":"0"},{"last_affected":"10.0"}]},{"events":[{"introduced":"0"},{"last_affected":"16.04"}]},{"events":[{"introduced":"0"},{"last_affected":"18.04"}]},{"events":[{"introduced":"0"},{"last_affected":"19.04"}]},{"events":[{"introduced":"0"},{"last_affected":"19.10"}]},{"events":[{"introduced":"0"},{"last_affected":"6.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"6.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.7"}]},{"events":[{"introduced":"0"},{"last_affected":"7.7"}]},{"events":[{"introduced":"0"},{"last_affected":"6.0"}]},{"events":[{"introduced":"0"},{"last_affected":"7.0"}]}]}}],"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"}]}