TI-2026-12559 Aliases CVE-2026-14906 GHSA-prx6-r9g2-44x7

Unrestricted file upload in Mozilla Firefox for iOS

LOW 30CWE-434Published 2026-07-13 · Updated 2026-07-13

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Code execution
Confidentiality · integrity · availability: Low · None · None
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-434.

Summary

Pages with malicious titles could potentially allow saved PDF content to overwrite PDF files or bundled content within the Firefox for iOS application sandbox. This vulnerability was fixed in Firefox for iOS 152.4.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00291 21st percentileScored 2026-11-07

Fix Fixed Firefox for iOS (Mozilla): 152.4

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
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 for iOS	—	152.4	Patch available	CNA

Firefox for iOS VendorMozilla Affected — Fixed in 152.4 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:mozilla:firefox_mobile::::::iphone_os::*	before 152.4	Vulnerable	Mozilla

cpe:2.3:a:mozilla:firefox_mobile:*:*:*:*:*:iphone_os:*:* Versions before 152.4 Vulnerable ·Mozilla

Remediation

Fix · CNA Firefox for iOS (Mozilla) Fixed in 152.4

Timeline

2026-10-02 Threatist record created from CVE-2026-14906
2026-10-03 Alias added: GHSA-prx6-r9g2-44x7

References

Advisory 1

https://www.mozilla.org/security/advisories/mfsa2026-66/

Other 1

https://bugzilla.mozilla.org/show_bug.cgi?id=2045842

TI-2022-09832 Use after free in Mozilla Firefox KEVCVSS 3.1CRITICAL 9.6
TI-2022-09831 Use after free in Mozilla Firefox KEVCVSS 3.1HIGH 8.8
TI-2023-13905 Race condition in Mozilla Firefox for Android CVSS 3.1HIGH 7.5
TI-2023-13916 A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization… CVSS 3.1MEDIUM 6.5
TI-2023-13903 Following a Garbage Collector compaction, weak maps may have been accessed before they… CVSS 3.1MEDIUM 6.5
TI-2022-13642 Information disclosure in Mozilla Firefox for iOS CVSS 3.1MEDIUM 6.5

See all 86 →

Sources

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