#VU80096 Input validation error in Mozilla Firefox and Firefox for Android - CVE-2023-4579
Published: August 29, 2023
Vulnerability identifier: #VU80096
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-2023-4579
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox for Android
Mozilla Firefox
Firefox for Android
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to perform a spoofing attack.
The vulnerability exists due to insufficient validation of user-supplied input when handling persistent search terms. Search queries in the default search engine can appear to have been the currently navigated URL if the search query itself is a well formed URL. As a result, a remote attacker can perform a spoofing attack if it had been maliciously set as the default search engine.
Remediation
Install updates from vendor's website.