CVE-2026-81267

Published: Aug 31, 2026Modified: Sep 3, 2026

5.4

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:L

Exploitability: 2.8 / Impact: 2.5

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Description

A malicious webpage could stall a popup's cross-origin navigation after commit, causing the address bar to display the destination origin while continuing to render attacker-controlled content. This vulnerability was fixed in Firefox for iOS 155.0.

Affected (1)

Products: Mozilla: Firefox Mobile

Mozilla

1 product

Firefox Mobile

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Mozilla Firefox Mobile	Before 155.0

Related CWEs

CWE-451

User Interface (UI) Misrepresentation of Critical Information

The user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.

References (2)

https://bugzilla.mozilla.org/show_bug.cgi?id=2052758

Source: security@mozilla.org

Permissions Required

https://www.mozilla.org/security/advisories/mfsa2026-81/

Source: security@mozilla.org

Vendor Advisory

Timeline

No history available yet.