CVE-2026-13356

MEDIUM 6.3

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

CVSS Score

6.3

EPSS Score

0.1%

EPSS Percentile

4th

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.

Vendor	mozilla
Product	firefox for ios
Ecosystems	Browser JavaScript
Industries	Technology
Published	Jul 6, 2026
Last Updated	Jul 7, 2026

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Affected Versions

Mozilla / Firefox for iOS

All versions affected

References

NVD ↗ CVE.org ↗ EPSS Data ↗

bugzilla.mozilla.org: https://bugzilla.mozilla.org/show_bug.cgi?id=2047768 mozilla.org: https://www.mozilla.org/security/advisories/mfsa2026-65/

Credits

Azza Tegar Naufal Ataullah