#VU77947 Insufficient UI Warning of Dangerous Operations in Mozilla Firefox and Firefox for Android - CVE-2023-37204

Vulnerability identifier: #VU77947

Vulnerability risk: Medium

CVSSv4.0: 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-2023-37204

CWE-ID: CWE-357

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerable software:
Mozilla Firefox
Firefox for Android

Software vendor:
Mozilla

The vulnerability allows a remote attacker to perform spoofing attack.

The vulnerability exists due to the way fullscreen notifications are handled within the browser. A remote attacker can obscure the fullscreen notification by using an option element by introducing lag via an expensive computational function and perform spoofing attack.

Install updates from vendor's website.

• https://www.mozilla.org/en-US/security/advisories/mfsa2023-22/