UXSS in Focus for iOS / Klar Webkit navigation
CVE-2026-11799

Currently unrated

Key Information:

Vendor: Mozilla
Status: Focus For iOS; Klar For iOS
Vendor: CVE Published:; 9 June 2026

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What is CVE-2026-11799?

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.

Affected Version(s)

Focus for iOS 151.3.1

Klar for iOS 151.3.1

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1975667

https://www.mozilla.org/security/advisories/mfsa2026-55/

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Timeline

Vulnerability published
Jun 9, 2026
Vulnerability Reserved
Jun 9, 2026

Credit

Renwa Hiwa

CVE-2026-11799 Data

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