Improper Access Control Affecting mozilla package, versions [,60.3)(60.3,63.0)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.42% (75th 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 Learn

Learn about Improper Access Control vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-UNMANAGED-MOZILLA-2378730
  • published26 Jan 2022
  • disclosed28 Feb 2019
  • creditUnknown

Introduced: 28 Feb 2019

CVE-2018-12395  (opens in a new tab)
CWE-284  (opens in a new tab)

How to fix?

Upgrade mozilla to version 60.3, 63.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Access Control. By rewriting the Host: request headers using the webRequest API, a WebExtension can bypass domain restrictions through domain fronting. This would allow access to domains that share a host that are otherwise restricted. This vulnerability affects Firefox ESR < 60.3 and Firefox < 63.

CVSS Scores

version 3.1