CWE
290
Advisory Published
CVE Published
Updated

CVE-2022-31738

First published: Tue May 31 2022(Updated: )

When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks.

Credit: security@mozilla.org

Affected SoftwareAffected VersionHow to fix
Thunderbird<91.10
91.10
Firefox<101
Firefox ESR<91.10
Thunderbird<91.10
Firefox<101
101
Firefox ESR<91.10
91.10

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Parent vulnerabilities

(Appears in the following advisories)

Frequently Asked Questions

  • What is the severity of CVE-2022-31738?

    CVE-2022-31738 is classified as a moderate severity vulnerability.

  • How do I fix CVE-2022-31738?

    To mitigate CVE-2022-31738, update to the latest version of Firefox or Thunderbird that resolves this issue.

  • Which versions of Firefox are affected by CVE-2022-31738?

    CVE-2022-31738 affects Firefox versions prior to 101 and Firefox ESR versions prior to 91.10.

  • Can CVE-2022-31738 lead to user spoofing attacks?

    Yes, CVE-2022-31738 can potentially enable spoofing attacks due to confusion around fullscreen state.

  • Is Firefox ESR impacted by CVE-2022-31738?

    Yes, CVE-2022-31738 impacts Firefox ESR versions prior to 91.10.

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