Brute Force Affecting mozilla package, versions [,91.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.12% (48th percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2377534
  • published26 Jan 2022
  • disclosed17 Aug 2021
  • creditUnknown

Introduced: 17 Aug 2021

CVE-2021-29987  (opens in a new tab)
CWE-307  (opens in a new tab)

How to fix?

Upgrade mozilla to version 91.0 or higher.

Overview

Affected versions of this package are vulnerable to Brute Force. After requesting multiple permissions, and closing the first permission panel, subsequent permission panels will be displayed in a different position but still record a click in the default location, making it possible to trick a user into accepting a permission they did not want to. This bug only affects Firefox on Linux. Other operating systems are unaffected.. This vulnerability affects Firefox < 91 and Thunderbird < 91.

CVSS Scores

version 3.1