CVE-2022-31738: Medium severity thunderbird vulnerability

Published 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.

Affected Software

6 affected componentsFixes available
Mozilla Thunderbird<91.10
91.10
Mozilla Firefox<101
Mozilla Firefox ESR<91.10
Mozilla Thunderbird<91.10
Mozilla Firefox<101
101
Mozilla Firefox ESR<91.10
91.10

Event History

May 31, 2022
CVE Published
via Mozilla·12:00 AM
Dec 22, 2022
CVE Published
via MITRE·12:00 AM
Data Sourced
via MITRE·12:00 AM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of CVE-2022-31738?

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

2

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.

3

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.

4

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

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

5

Is Firefox ESR impacted by CVE-2022-31738?

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

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203