CVE-2026-13356

Interrupted navigation could allow address bar origin spoofing in Firefox for iOS

Medium · published July 6, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
11.7
In the wild
Unconfirmed
What it is

A malicious webpage could interrupt a pending navigation by enqueuing a synchronous JavaScript dialog, causing the browser UI to display the destination origin in the address bar while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 152.3.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
CVSS v4.0
Not supplied
EPSS
0.00219 · 11.7th percentile
Published
2026-07-06T23:07Z
EPSS history
Timeline
  • 06 JUL 23:07Z
    Interrupted navigation could allow address bar origin spoofing in Firefox for iOS
    cvelistv5