Description
Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.
Published: 2026-10-13
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 13 Oct 2026 13:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Tue, 13 Oct 2026 09:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-79

Tue, 13 Oct 2026 08:45:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox For Ios
Vendors & Products Mozilla
Mozilla firefox For Ios

Tue, 13 Oct 2026 07:45:00 +0000

Type Values Removed Values Added
Description Firefox for iOS directly interpolated the page’s HTML language attribute into translation JavaScript, allowing attacker-controlled markup to execute code in Firefox’s privileged content world and bypass the page’s Content Security Policy. This vulnerability was fixed in Firefox for iOS 157.1.
Title Universal XSS via the HTML language attribute in Translation Services
References

Subscriptions

Mozilla Firefox For Ios
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-10-13T12:00:48.565Z

Reserved: 2026-09-30T14:48:16.869Z

Link: CVE-2026-103418

cve-icon Vulnrichment

Updated: 2026-10-13T12:00:44.591Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T08:16:59.560

Modified: 2026-10-13T16:19:16.897

Link: CVE-2026-103418

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-13T09:30:13Z

Weaknesses
  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')