Improperly Implemented Security Check for Standard Affecting firefox package, versions *


Severity

Recommended
high

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.59% (44th percentile)

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  • Snyk IDSNYK-RHEL10-FIREFOX-22213221
  • published5 Nov 2026
  • disclosed3 Sept 2019

Introduced: 3 Sep 2019

CVE-2019-11741  (opens in a new tab)
CWE-358  (opens in a new tab)

How to fix?

There is no fixed version for RHEL:10 firefox.

NVD Description

Note: Versions mentioned in the description apply only to the upstream firefox package and not the firefox package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

A compromised sandboxed content process can perform a Universal Cross-site Scripting (UXSS) attack on content from any site it can cause to be loaded in the same process. Because addons.mozilla.org and accounts.firefox.com have close ties to the Firefox product, malicious manipulation of these sites within the browser can potentially be used to modify a user's Firefox configuration. These two sites will now be isolated into their own process and not allowed to be loaded in a standard content process. This vulnerability affects Firefox < 69.

CVSS Base Scores

version 3.1