Medium · 4.3 CVE-2026-2919 EUVD-2026-10338

Attacker-controlled content shown under spoofed domains in Focus for iOS via stalled navigation and iframe redirect

Published Mar 9, 2026 · Updated Apr 13, 2026 · Assigned by mozilla

Vendor: Mozilla Product: Focus for iOS Platform: iOS

Description

Malicious scripts could display attacker-controlled web content under spoofed domains in Focus for iOS by stalling a _self navigation to an invalid port and triggering an iframe redirect, causing the UI to display a trusted domain without user interaction. This vulnerability was fixed in Focus for iOS 148.2.

Affected products

Vendor	Product	Affected	Fixed
Mozilla	Focus for iOS	—	148.2

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1975842
https://www.mozilla.org/security/advisories/mfsa2026-18/