Advisory Published
CVE Published


First published: Tue Nov 21 2023(Updated: )

When an https: web page created a pop-up from a "javascript:" URL, that pop-up was incorrectly allowed to load blockable content such as iframes from insecure http: URLs This vulnerability affects Firefox < 120.

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

Affected SoftwareAffected VersionHow to fix
Mozilla Firefox<120
Mozilla Firefox<120.0

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID?

    The vulnerability ID is CVE-2023-6210.

  • Which web browser is affected by this vulnerability?

    This vulnerability affects Mozilla Firefox version up to exclusive 120.

  • What is the severity of CVE-2023-6210?

    The severity of CVE-2023-6210 is low.

  • How does this vulnerability affect web pages?

    When an https: web page creates a pop-up from a "javascript:" URL, that pop-up is incorrectly allowed to load blockable content from insecure http: URLs.

  • How can I fix CVE-2023-6210?

    To fix CVE-2023-6210, update Mozilla Firefox to version 120 or later.


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