CWE
862
Advisory Published
CVE Published
Updated

CVE-2020-6823

First published: Tue Apr 07 2020(Updated: )

A malicious extension could have called <code>browser.identity.launchWebAuthFlow</code>, controlling the redirect_uri, and through the Promise returned, obtain the Auth code and gain access to the user's account at the service provider. This vulnerability affects Firefox < 75.

Credit: security@mozilla.org security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox<75
75
Mozilla Firefox<75.0
debian/firefox
132.0.1-1

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Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2020-6823.

  • What is the severity level of CVE-2020-6823?

    The severity level of CVE-2020-6823 is critical with a score of 9.8.

  • Which software is affected by CVE-2020-6823?

    The software affected by CVE-2020-6823 is Mozilla Firefox versions before 75.

  • How can this vulnerability be exploited?

    A malicious extension could call browser.identity.launchWebAuthFlow, controlling the redirect_uri to obtain the Auth code and gain access to the user's account at the service provider.

  • Is there a fix available for CVE-2020-6823?

    Yes, updating to Mozilla Firefox version 75 or above will fix the vulnerability.

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