CVE-2023-6210 Affecting firefox-esr package, versions <120.0-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.61% (45th percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-FIREFOXESR-17763931
  • published1 Jul 2026
  • disclosed21 Nov 2023

Introduced: 21 Nov 2023

CVE-2023-6210  (opens in a new tab)

How to fix?

Upgrade Chainguard firefox-esr to version 120.0-r0 or higher.

NVD Description

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

When an https: web page created a pop-up from a "javascript:" URL, that pop-up was incorrectly allowed to load blockable content such as iframes from insecure http: URLs This vulnerability affects Firefox < 120.

CVSS Base Scores

version 3.1