What’s Vulnerable › Vulnerabilities

CVE-2024-1563

• Severity: high (CVSS 8.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-02-22 · updated 2026-06-17
• Weakness: CWE-367

Description

An attacker could have executed unauthorized scripts on top origin sites using a JavaScript URI when opening an external URL with a custom Firefox scheme and a timeout race condition. This vulnerability affects Focus for iOS < 122.

Affected products

• Mozilla Focus for iOS: before 122.0 — fixed in 122.0

How to fix

Upgrade to a fixed version: Mozilla Focus for iOS 122.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.mozilla.org/show_bug.cgi?id=1863831
• https://www.mozilla.org/security/advisories/mfsa2024-09/
• https://bugzilla.mozilla.org/show_bug.cgi?id=1863831
• https://www.mozilla.org/security/advisories/mfsa2024-09/

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