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Vulnerability record · CVE-2024-8399 · published 3 September 2024

CVE-2024-8399: Mozilla firefox focus authentication bypass by spoofing vulnerability

Mozilla · Firefox Focus

Websites could utilize Javascript links to spoof URL addresses in the Focus navigation bar This vulnerability affects Focus for iOS < 130.

4.7 CVSS 3.1 Medium EPSS 0.27% · top 82.4% CWE-290 · Authentication bypass by spoofing
4.7CVSS 3.1 base score
0.27%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Websites could utilize Javascript links to spoof URL addresses in the Focus navigation bar This vulnerability affects Focus for iOS < 130.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.mozilla.org/show_bug.cgi?id=1863838 Permissions Required
https://www.mozilla.org/security/advisories/mfsa2024-42/ Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2024-8399), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.