---
id: CVE-2025-23108
title: >-
  Opening Javascript links in a new tab via long-press in the Firefox iOS client
  could result in a malicious script spoofing the URL of the new tab
summary: >-
  Opening Javascript links in a new tab via long-press in the Firefox iOS client
  could result in a malicious script spoofing the URL of the new tab. This
  vulnerability was fixed in Firefox for iOS 134.
severity: medium
cvss: 4.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N'
cwe:
  - CWE-79
vendor: mozilla
product: firefox
affected:
  - firefox < 134.0
patched:
  - firefox 134.0
published: '2025-01-11'
updated: '2026-09-30'
sourceUpdated: '2026-09-30T19:10:01.007'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-23108'
references:
  - url: 'https://bugzilla.mozilla.org/show_bug.cgi?id=1933172'
    label: security@mozilla.org
  - url: 'https://www.mozilla.org/security/advisories/mfsa2025-06/'
    label: security@mozilla.org
tags:
  - nvd
epss: 0.00239
epssPercentile: 0.13537
ingestedAt: '2026-09-30T19:21:07.221Z'
---

## Overview

Opening Javascript links in a new tab via long-press in the Firefox iOS client could result in a malicious script spoofing the URL of the new tab. This vulnerability was fixed in Firefox for iOS 134.

## Affected

- `firefox < 134.0`

## Remediation

Upgrade past the affected range:

- `firefox 134.0`