CVE-2026-11799

high

Description

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.

References

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

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

Details

Source: Mitre, NVD

Published: 2026-06-09

Updated: 2026-06-10

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Severity: High

EPSS

EPSS: 0.00018