Protection mechanism failure in Mozilla Firefox - CVE-2019-11763

 

Protection mechanism failure in Mozilla Firefox - CVE-2019-11763

Published: October 23, 2019


Vulnerability identifier: #VU22168
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-11763
CWE-ID: CWE-693
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Mozilla
Affected software:
Mozilla Firefox

Detailed vulnerability description

The vulnerability allows a remote attacker to perform XSS attacks.

The vulnerability exists due to the way Firefox processes HTML entities. A remote attacker can create a specially crafted web page and make the browser treat HTML comment text  as HTML, which could have led to XSS in a web application.


How to mitigate CVE-2019-11763

Install updates from vendor's website.

Sources