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TI-2026-10184 Aliases CVE-2026-11799GHSA-2j9g-whc6-7j55

Cross-site scripting in Mozilla Focus for iOS

Priority LOW 38CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-79.

Summary

UXSS in Focus for iOS / Klar Webkit navigation. This vulnerability was fixed in Focus for iOS 151.3.1 and Klar for iOS 151.3.1.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00216 12th percentileScored 2026-11-07
Fix Fixed Focus for iOS (Mozilla): 151.3.1Klar for iOS (Mozilla): 151.3.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MozillaFocus for iOS—151.3.1Patch availableCNA
MozillaKlar for iOS—151.3.1Patch availableCNA
  • Focus for iOS VendorMozilla Affected — Fixed in 151.3.1 Patch available CNA
  • Klar for iOS VendorMozilla Affected — Fixed in 151.3.1 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:mozilla:focus:*:*:*:*:*:iphone_os:*:*before 151.3.1VulnerableMozilla
cpe:2.3:a:mozilla:klar:*:*:*:*:*:iphone_os:*:*before 151.3.1VulnerableMozilla
  • cpe:2.3:a:mozilla:focus:*:*:*:*:*:iphone_os:*:* Versions before 151.3.1 Vulnerable ·Mozilla
  • cpe:2.3:a:mozilla:klar:*:*:*:*:*:iphone_os:*:* Versions before 151.3.1 Vulnerable ·Mozilla

Remediation

  • Fix · CNA Focus for iOS (Mozilla) Fixed in 151.3.1
  • Fix · CNA Klar for iOS (Mozilla) Fixed in 151.3.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-11799
  2. 2026-10-03 Alias added: GHSA-2j9g-whc6-7j55

References

Advisory 1

Other 1

  • TI-2023-13905 Race condition in Mozilla Firefox for Android CVSS 3.1HIGH 7.5
  • TI-2023-13916 A wrong lowering instruction in the ARM64 Ion compiler resulted in a wrong optimization… CVSS 3.1MEDIUM 6.5
  • TI-2023-13903 Following a Garbage Collector compaction, weak maps may have been accessed before they… CVSS 3.1MEDIUM 6.5
  • TI-2023-13906 Exposure of resource to wrong sphere in Mozilla Firefox for Android CVSS 3.1MEDIUM 4.3
  • TI-2023-13901 A website could have obscured the fullscreen notification by using a combination of… CVSS 3.1MEDIUM 4.3
  • TI-2023-13919 Out-of-bounds write in Mozilla Firefox for Android CVSS 3.1HIGH 8.8
See all 15 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences