{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-11799: UXSS in Focus for iOS / Klar Webkit navigation","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-11799","status":"final","version":"1","initial_release_date":"2026-06-09T20:52:02.036Z","current_release_date":"2026-06-10T15:47:54.890Z","revision_history":[{"date":"2026-06-09T20:52:02.036Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"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.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-11799 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-11799"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-11799"},{"category":"external","summary":"bugzilla.mozilla.org","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1975667"},{"category":"external","summary":"mozilla.org","url":"https://www.mozilla.org/security/advisories/mfsa2026-55/"}]},"product_tree":{"branches":[{"category":"vendor","name":"Mozilla","branches":[{"category":"product_name","name":"Focus for iOS","branches":[{"category":"product_version","name":"*","product":{"name":"Mozilla Focus for iOS *","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:mozilla:focus_for_ios:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"151.3.1","product":{"name":"Mozilla Focus for iOS 151.3.1","product_id":"CSAFPID-2","product_identification_helper":{"cpe":"cpe:2.3:a:mozilla:focus_for_ios:*:*:*:*:*:*:*:*"}}}]}]},{"category":"vendor","name":"Mozilla","branches":[{"category":"product_name","name":"Klar for iOS","branches":[{"category":"product_version","name":"*","product":{"name":"Mozilla Klar for iOS *","product_id":"CSAFPID-3","product_identification_helper":{"cpe":"cpe:2.3:a:mozilla:klar_for_ios:*:*:*:*:*:*:*:*"}}},{"category":"product_version","name":"151.3.1","product":{"name":"Mozilla Klar for iOS 151.3.1","product_id":"CSAFPID-4","product_identification_helper":{"cpe":"cpe:2.3:a:mozilla:klar_for_ios:*:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-11799","title":"UXSS in Focus for iOS / Klar Webkit navigation","notes":[{"category":"description","text":"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.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1","CSAFPID-3"],"fixed":["CSAFPID-2","CSAFPID-4"]},"scores":[{"cvss_v3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","baseScore":7.5,"baseSeverity":"HIGH"},"products":["CSAFPID-1","CSAFPID-3"]}],"remediations":[{"category":"vendor_fix","details":"Update to a fixed version: 151.3.1.","product_ids":["CSAFPID-1","CSAFPID-3"]}]}]}