UXSS in Focus & Klar WebKit Nav Fixed in 151.3.1
CVE-2026-11799 Published on June 9, 2026
UXSS in Focus for iOS / Klar Webkit navigation
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.
Vulnerability Analysis
CVE-2026-11799 can be exploited with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality, with no impact on integrity and availability.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-11799 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-11799
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Affected Versions
Mozilla Focus for iOS:- Version 151.3.1, <= * is unaffected.
- Version 151.3.1, <= * is unaffected.