CVE-2025-23108: Mozilla Firefox for iOS · Cross-site Scripting
Affects Mozilla Firefox for iOSSource CVE Database V5
Not known to be exploited · CVSS 4.3 Medium : upgrade to 134 when convenient.
Data as of 26 Oct 2026, 09:08 UTC
- EPSS
- 0.2% chance of exploitation in 30 days – higher than 15% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 134
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 11 Jan 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Mozilla Firefox for iOS to 134.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Mozilla Firefox for iOS | Affected
| Fixed in
|
AI-suggested
Mozilla has fixed this vulnerability in Firefox for iOS version 134. Users and administrators should update to Firefox for iOS 134 or later to remediate this issue. Since the vendor advisory confirms the fix, no additional mitigation steps are required beyond applying the official update.
Description
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.