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MFSA2016-46 Firefox: Elevation of privilege with chrome.tabs.update API in web extensions (CVE-2016-2817)

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MFSA2016-46 Firefox: Elevation of privilege with chrome.tabs.update API in web extensions (CVE-2016-2817)

Severity
4
CVSS
(AV:N/AC:M/Au:N/C:N/I:P/A:N)
Published
04/26/2016
Created
07/25/2018
Added
04/27/2016
Modified
10/30/2017

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.

Solution(s)

  • mozilla-firefox-upgrade-46_0

References

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