CVE-2021-23974 Affecting firefox package, versions <86.0-1


0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Scope Changed

    Threat Intelligence

    EPSS 0.11% (42nd percentile)
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NVD
6.1 medium

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  • Snyk ID SNYK-DEBIANUNSTABLE-FIREFOX-1078687
  • published 24 Feb 2021
  • disclosed 26 Feb 2021

How to fix?

Upgrade Debian:unstable firefox to version 86.0-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

The DOMParser API did not properly process '<noscript>' elements for escaping. This could be used as an mXSS vector to bypass an HTML Sanitizer. This vulnerability affects Firefox < 86.