Improper Data Handling Affecting mozilla package, versions [,56.0)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.48% (77th percentile)

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  • Snyk IDSNYK-UNMANAGED-MOZILLA-2377607
  • published26 Jan 2022
  • disclosed11 Jun 2018
  • creditUnknown

Introduced: 11 Jun 2018

CVE-2017-7820  (opens in a new tab)
CWE-19  (opens in a new tab)

How to fix?

Upgrade mozilla to version 56.0 or higher.

Overview

Affected versions of this package are vulnerable to Improper Data Handling. The "instanceof" operator can bypass the Xray wrapper mechanism. When called on web content from the browser itself or an extension the web content can provide its own result for that operator, possibly tricking the browser or extension into mishandling the element. This vulnerability affects Firefox < 56.

CVSS Scores

version 3.1