Improper Restriction of Rendered UI Layers or Frames Affecting mozilla package, versions [,78.5)(78.5,83.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.12% (48th 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-UNMANAGED-MOZILLA-2378640
  • published26 Jan 2022
  • disclosed9 Dec 2020
  • creditUnknown

Introduced: 9 Dec 2020

CVE-2020-26953  (opens in a new tab)
CWE-1021  (opens in a new tab)

How to fix?

Upgrade mozilla to version 78.5, 83.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Restriction of Rendered UI Layers or Frames. It was possible to cause the browser to enter fullscreen mode without displaying the security UI; thus making it possible to attempt a phishing attack or otherwise confuse the user. This vulnerability affects Firefox < 83, Firefox ESR < 78.5, and Thunderbird < 78.5.

CVSS Scores

version 3.1