{"id":"CVE-2016-2817","details":"The WebExtension sandbox feature in browser/components/extensions/ext-tabs.js in Mozilla Firefox before 46.0 does not properly restrict principal inheritance during chrome.tabs.create and chrome.tabs.update API calls, which allows remote attackers to conduct Universal XSS (UXSS) attacks via a crafted extension that accesses a (1) javascript: or (2) data: URL.","modified":"2026-05-04T08:13:46.117199Z","published":"2016-04-30T17:59:14.647Z","withdrawn":"2026-05-04T08:13:46.117199Z","related":["openSUSE-SU-2024:10071-1","openSUSE-SU-2024:14572-1"],"references":[{"type":"WEB","url":"http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00005.html"},{"type":"WEB","url":"http://lists.opensuse.org/opensuse-updates/2016-05/msg00038.html"},{"type":"WEB","url":"http://www.securitytracker.com/id/1035692"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-2936-2"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-2936-3"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/201701-15"},{"type":"ADVISORY","url":"http://www.mozilla.org/security/announce/2016/mfsa2016-46.html"},{"type":"ADVISORY","url":"http://www.ubuntu.com/usn/USN-2936-1"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1227462"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2016-2817.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"last_affected":"45.0.2"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N"}]}