TI-2024-01451 Aliases CVE-2024-1555 GHSA-j6qq-7xp7-c5p5

Authentication bypass by spoofing in Mozilla Firefox

LOW 37CWE-290Published 2024-02-20 · Updated 2024-11-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Security bypass
Confidentiality · integrity · availability: High · High · Low
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-290.

Summary

When opening a website using the `firefox://` protocol handler, SameSite cookies were not properly respected. This vulnerability affects Firefox < 123.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00478 41st percentileScored 2026-11-07

Fix Fixed Firefox (Mozilla): 123

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Mozilla	Firefox	before 123	123	Patch available	CNA

Firefox VendorMozilla Affected before 123 Fixed in 123 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox::::::::	before 123.0	Vulnerable	Mozilla

cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:* Versions before 123.0 Vulnerable ·Mozilla

Remediation

Fix · CNA Firefox (Mozilla) Fixed in 123

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2024-02-20
Mozilla Firefox 123
12 records Highest priority Priority MEDIUM 1 MEDIUM, 11 LOW
Other records, highest priority first
- TI-2024-01450 Insufficient verification of data authenticity in Mozilla FirefoxPriority MEDIUM 49
- TI-2024-01449 Memory corruption in Mozilla FirefoxPriority LOW 39
- TI-2024-01453 Out-of-bounds write in Mozilla FirefoxPriority LOW 38
Show all 12 records →

Timeline

2026-10-02 Threatist record created from CVE-2024-1555
2026-10-03 Alias added: GHSA-j6qq-7xp7-c5p5

References

Advisory 1

https://www.mozilla.org/security/advisories/mfsa2024-05/

Other 1

https://bugzilla.mozilla.org/show_bug.cgi?id=1873223

TI-2024-08981 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.8
TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
TI-2019-08769 Improper input validation in Mozilla Firefox ESR KEVCVSS 3.1CRITICAL 10.0
TI-2010-03577 Mozilla Firefox 3.5.x through 3.5.14 and 3.6.x through 3.6.11, Thunderbird 3.1.6 before… KEVCVSS 3.1CRITICAL 9.8
TI-2023-04799 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8
TI-2023-04477 Out-of-bounds write in Google Chrome KEVCVSS 3.1HIGH 8.8

See all 3444 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences