CVE-2024-1563

HIGH

Firefox Focus < 122.0 - Unauthorized Script Execution via JavaScript URI and Timeout Race Condition

Title source: llm

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.

References (2)

Core 2

Core References

Issue Tracking

https://bugzilla.mozilla.org/show_bug.cgi?id=1863831

Vendor Advisory

https://www.mozilla.org/security/advisories/mfsa2024-09/

Scores

CVSS v3 8.1

EPSS 0.0042

EPSS Percentile 62.3%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-367

Status published

Products (1)

mozilla/firefox_focus < 122.0

Published Feb 22, 2024

Tracked Since Feb 18, 2026