Spoofing attack in Mozilla Firefox - CVE-2021-29961

 

Spoofing attack in Mozilla Firefox - CVE-2021-29961

Published: June 1, 2021


Vulnerability identifier: #VU53711
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-29961
CWE-ID: CWE-451
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 spoofing attack.

The vulnerability exists due to incorrect rendering an oversized <select> element. A remote attacker can spoof page content.


How to mitigate CVE-2021-29961

Install updates from vendor's website.

Sources