#VU64765 Origin validation error in Mozilla Firefox - CVE-2022-34477
Published: June 29, 2022
Vulnerability identifier: #VU64765
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2022-34477
CWE-ID: CWE-346
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Mozilla Firefox
Mozilla Firefox
Software vendor:
Mozilla
Mozilla
Description
The vulnerability allows a remote attacker to gain access to sensitive information.
The vulnerability exists due to origin validation error. The MediaError message property should be consistent to avoid leaking information about cross-origin resources, however for a same-site cross-origin resource, the message could have leaked information enabling XS-Leaks attacks.
Remediation
Install updates from vendor's website.