CWE
862
Advisory Published
CVE Published
Updated

CVE-2023-3482

First published: Tue Jul 04 2023(Updated: )

When Firefox is configured to block storage of all cookies, it was still possible to store data in localstorage by using an iframe with a source of 'about:blank'. This could have led to malicious websites storing tracking data without permission. This vulnerability affects Firefox < 115.

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

Affected SoftwareAffected VersionHow to fix
ubuntu/firefox<115.0-1
115.0-1
ubuntu/firefox<115.0+
115.0+
Mozilla Firefox<115
115
Mozilla Firefox<115.0
debian/firefox
123.0-1

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the vulnerability ID of this Firefox vulnerability?

    The vulnerability ID is CVE-2023-3482.

  • What is the severity level of CVE-2023-3482?

    The severity level of CVE-2023-3482 is medium.

  • How does this vulnerability affect Firefox?

    This vulnerability affects Firefox versions prior to 115.

  • How can data be stored in localstorage despite blocking cookies?

    Data can be stored in localstorage by using an iframe with a source of 'about:blank', even when blocking cookies.

  • Are there any references related to CVE-2023-3482?

    Yes, you can find more information about this vulnerability at the following links: [Bugzilla](https://bugzilla.mozilla.org/show_bug.cgi?id=1839464), [Mozilla Security Advisories](https://www.mozilla.org/security/advisories/mfsa2023-22/), [Launchpad](https://launchpad.net/bugs/cve/CVE-2023-3482).

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