#VU53711 Spoofing attack


Published: 2021-06-01

Vulnerability identifier: #VU53711

Vulnerability risk: Medium

CVSSv3.1:

CVE-ID: CVE-2021-29961

CWE-ID: CWE-451

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Mozilla Firefox
Client/Desktop applications / Web browsers

Vendor: Mozilla

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.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Mozilla Firefox: 80.0 - 88.0.1


CPE

External links
http://www.mozilla.org/en-US/security/advisories/mfsa2021-23/


Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?


Latest bulletins with this vulnerability