8.1
CWE
362 79 367
Advisory Published
CVE Published
Updated

CVE-2024-1563: Race Condition

First published: Mon Feb 19 2024(Updated: )

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.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
All of
Mozilla Focus=122
Apple iOS and iPadOS
<122.0

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Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2024-1563?

    CVE-2024-1563 is classified as a high severity vulnerability due to its potential for unauthorized script execution.

  • How do I fix CVE-2024-1563?

    To mitigate CVE-2024-1563, users should update Mozilla Focus to version 122 or later, or utilize a workaround that involves avoiding specific JavaScript URIs.

  • Who is affected by CVE-2024-1563?

    CVE-2024-1563 affects users of Mozilla Focus on iOS versions up to 122.0 and other affected Mozilla products.

  • What is the impact of CVE-2024-1563?

    If exploited, CVE-2024-1563 allows attackers to execute unauthorized scripts on top origin sites, posing significant security risks.

  • When was CVE-2024-1563 reported?

    CVE-2024-1563 was reported in early 2024, highlighting a critical vulnerability within the Firefox Focus application.

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