Cross-site scripting in Mozilla Firefox - CVE-2019-11744

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Main Vulnerability Database Vulnerabilities #VU20819

Cross-site scripting in Mozilla Firefox - CVE-2019-11744

Published: September 3, 2019


Vulnerability identifier: #VU20819
CSH Severity: Medium
CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N]
CVE-ID: CVE-2019-11744
CWE-ID: CWE-79
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data within


Affected software

Mozilla Firefox
Firefox ESR
Arch Linux
Gentoo Linux
Red Hat Enterprise Linux for Scientific Computing
Red Hat Enterprise Linux Server
Red Hat Enterprise Linux Workstation
Red Hat Enterprise Linux Desktop
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64
firefox (Ubuntu package)
thunderbird (Debian package)
thunderbird (Ubuntu package)
firefox-esr (Alpine package)
firefox-esr (Debian package)
Mozilla Thunderbird

How to mitigate CVE-2019-11744

Install updates from vendor's website.

Mozilla Firefox - update to 69.0
firefox (Ubuntu package) - addressed in versions 69.0+build2-0ubuntu0.16.04.4, 69.0+build2-0ubuntu0.18.04.1, 69.0+build2-0ubuntu0.19.04.1, 69.0.2+build1-0ubuntu0.16.04.1, 69.0.2+build1-0ubuntu0.18.04.1, 69.0.2+build1-0ubuntu0.19.04.1
thunderbird (Debian package) - addressed in versions 1:60.9.0-1~deb9u1, 1:60.9.0-1~deb10u1
thunderbird (Ubuntu package) - addressed in versions 1:60.9.0+build1-0ubuntu0.16.04.2, 1:60.9.0+build1-0ubuntu0.18.04.1, 1:60.9.0+build1-0ubuntu0.19.04.1
Mozilla Thunderbird - addressed in versions 60.9.0, 68.1.0
Firefox ESR - addressed in versions 60.9.0, 68.1.0
firefox-esr (Alpine package) - update to 60.9.0-r0
firefox-esr (Debian package) - update to 60.9.0esr-1~deb10u1

External References

Related Security Bulletins