Exposed Dangerous Method or Function Affecting firefox package, versions *


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.79% (56th percentile)

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  • Snyk IDSNYK-RHEL10-FIREFOX-22252445
  • published6 Nov 2026
  • disclosed22 Oct 2019

Introduced: 22 Oct 2019

CVE-2019-11761  (opens in a new tab)
CWE-749  (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.

By using a form with a data URI it was possible to gain access to the privileged JSONView object that had been cloned into content. Impact from exposing this object appears to be minimal, however it was a bypass of existing defense in depth mechanisms. This vulnerability affects Firefox < 70, Thunderbird < 68.2, and Firefox ESR < 68.2.

CVSS Base Scores

version 3.1