Cross-site Scripting (XSS) Affecting firefox-esr package, versions <115.14.0esr-1~deb12u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.05% (23rd percentile)

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  • Snyk IDSNYK-DEBIAN12-FIREFOXESR-7642575
  • published7 Aug 2024
  • disclosed6 Aug 2024

Introduced: 6 Aug 2024

CVE-2024-7524  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade Debian:12 firefox-esr to version 115.14.0esr-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 Debian. See How to fix? for Debian:12 relevant fixed versions and status.

Firefox adds web-compatibility shims in place of some tracking scripts blocked by Enhanced Tracking Protection. On a site protected by Content Security Policy in "strict-dynamic" mode, an attacker able to inject an HTML element could have used a DOM Clobbering attack on some of the shims and achieved XSS, bypassing the CSP strict-dynamic protection. This vulnerability affects Firefox < 129, Firefox ESR < 115.14, and Firefox ESR < 128.1.

CVSS Scores

version 3.1