Homepage

Access Restriction Bypass The advisory has been revoked - it doesn't affect any version of package firefox-esr  (opens in a new tab)

Threat Intelligence

EPSS
1.25% (69th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-DEBIAN10-FIREFOXESR-601026
  • published30 Apr 2016
  • disclosed30 Apr 2016
Report a new vulnerability Found a mistake?

Introduced: 30 Apr 2016

CVE-2016-2817  (opens in a new tab)
CWE-264  (opens in a new tab)

Amendment

The Debian security team deemed this advisory irrelevant for Debian:10.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox-esr package and not the firefox-esr package as distributed by Debian.

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.