CVE-2023-5725 Affecting firefox-esr package, versions <115.4.0esr-1~deb12u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.91% (56th percentile)

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  • Snyk IDSNYK-ECHOLATEST-FIREFOXESR-18168853
  • published22 Jul 2026
  • disclosed25 Oct 2023

Introduced: 25 Oct 2023

CVE-2023-5725  (opens in a new tab)

How to fix?

Upgrade Echo:latest firefox-esr to version 115.4.0esr-1~deb12u1 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 Echo. See How to fix? for Echo:latest relevant fixed versions and status.

A malicious installed WebExtension could open arbitrary URLs, which under the right circumstance could be leveraged to collect sensitive user data. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

CVSS Base Scores

version 3.1