#VU83372 Input validation error in Mozilla products - CVE-2023-6209
Published: November 21, 2023
Vulnerability identifier: #VU83372
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-2023-6209
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Firefox ESR
Firefox for Android
Mozilla Firefox
Firefox ESR
Firefox for Android
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to manipulate data on websites.
The vulnerability exists due to insufficient validation of user-supplied input when parsing relative URLs that start with a triple slash, e.g. "///". A remote attacker can use a path-traversal "/../" part in the path to override the specified host.
Remediation
Install updates from vendor's website.