Cross-site Scripting (XSS) Affecting firefox package, versions <0:102.3.0-6.el8_6.alma


Severity

Recommended
high

Based on AlmaLinux security rating.

Threat Intelligence

EPSS
0.09% (41st percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications

Snyk Learn

Learn about Cross-site Scripting (XSS) vulnerabilities in an interactive lesson.

Start learning
  • Snyk IDSNYK-ALMALINUX8-FIREFOX-5616588
  • published28 May 2023
  • disclosed26 Sept 2022

Introduced: 26 Sep 2022

CVE-2022-40956  (opens in a new tab)
CWE-79  (opens in a new tab)

How to fix?

Upgrade AlmaLinux:8 firefox to version 0:102.3.0-6.el8_6.alma or higher.
This issue was patched in ALSA-2022:6702.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by AlmaLinux. See How to fix? for AlmaLinux:8 relevant fixed versions and status.

When injecting an HTML base element, some requests would ignore the CSP's base-uri settings and accept the injected element's base instead. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

CVSS Scores

version 3.1