CVE-2016-2817

Published: 27 April 2016

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.

Priority

Medium

CVSS 3 base score: 5.4

Status

Package Release Status
firefox
Launchpad, Ubuntu, Debian
Upstream
Released (46.0)
Ubuntu 16.04 ESM (Xenial Xerus)
Released (46.0+build5-0ubuntu0.16.04.2)
Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was released [46.0+build5-0ubuntu0.14.04.2])
thunderbird
Launchpad, Ubuntu, Debian
Upstream Not vulnerable

Ubuntu 16.04 ESM (Xenial Xerus) Not vulnerable

Ubuntu 14.04 ESM (Trusty Tahr) Does not exist
(trusty was not-affected)