CVE-2016-2817

MEDIUM

Mozilla Firefox < 45.0.2 - Access Control

Title source: rule

Description

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.

References (9)

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2936-1

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2936-2

[Vendor Advisory] http://www.ubuntu.com/usn/USN-2936-3

[Mailing List] http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00005.html

[Mailing List] http://lists.opensuse.org/opensuse-updates/2016-05/msg00038.html

[Vendor Advisory] http://www.mozilla.org/security/announce/2016/mfsa2016-46.html

[Third Party Advisory, VDB Entry] http://www.securitytracker.com/id/1035692

[Third Party Advisory] https://security.gentoo.org/glsa/201701-15

[Issue Tracking] https://bugzilla.mozilla.org/show_bug.cgi?id=1227462

Scores

CVSS v3 5.4

EPSS 0.0040

EPSS Percentile 60.3%

Attack Vector NETWORK

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Classification

CWE

CWE-264

Status draft

Affected Products (1)

mozilla/firefox < 45.0.2

Timeline

Published Apr 30, 2016

Tracked Since Feb 18, 2026