CVE-2016-2817

Publication date 27 April 2016

Last updated 25 August 2025

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

5.4 · Medium

Score breakdown

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.

Status

Package Ubuntu Release Status
firefox 16.04 LTS xenial
Fixed 46.0+build5-0ubuntu0.16.04.2
15.10 wily
Fixed 46.0+build5-0ubuntu0.15.10.2
14.04 LTS trusty
Fixed 46.0+build5-0ubuntu0.14.04.2
12.04 LTS precise
Fixed 46.0+build5-0ubuntu0.12.04.2
thunderbird 16.04 LTS xenial
Not affected
15.10 wily
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected

Severity score breakdown

CVSS version: CVSS v3.0

Base score 5.4 · Medium

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

References

Related Ubuntu Security Notices (USN)

    • USN-2936-1
    • Firefox vulnerabilities
    • 27 April 2016

Other references

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