What is CVE-2023-3482?

CVE-2023-3482 is a medium-severity vulnerability in Mozilla Firefox, classified under Missing Authorization. CVSS score: 6.5/10. Published 2023-07-05.

How severe is CVE-2023-3482?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Mozilla Firefox

CVE-2023-3482

When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115.

Vulnerability class: Broken Access Control

EPSS: 0.006 (44.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.

Affected products

Mozilla Firefox — versions unspecified

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security@mozilla.org (Permissions Required, Issue Tracking)
security@mozilla.org (Vendor Advisory)
security@mozilla.org

Frequently asked questions

What is CVE-2023-3482?: CVE-2023-3482 is a medium-severity vulnerability in Mozilla Firefox, classified under Missing Authorization. CVSS score: 6.5/10. Published 2023-07-05.
How severe is CVE-2023-3482?: Medium severity. CVSS v3 base score is 6.5 out of 10.