CVE-2023-5726: Medium severity thunderbird vulnerability

Published Oct 24, 2023
·
Updated

A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. Note: This issue only affected macOS operating systems. Other operating systems are unaffected. This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

Other sources

A website could have obscured the full screen notification by using the file open dialog. This could have led to user confusion and possible spoofing attacks. Note: This issue only affected macOS operating systems. Other operating systems are unaffected.

Mozilla

Affected Software

7 affected componentsFixes available
Mozilla Thunderbird<115.4.1
115.4.1
Mozilla Firefox<119
119
Mozilla Firefox ESR<115.4
115.4
All of the following
Any of the following
Mozilla Firefox<119.0
Mozilla Firefox ESR<115.4
Mozilla Thunderbird<115.4.1
macOS

Event History

Oct 24, 2023
CVE Published
via Mozilla·12:00 AM
CVE Published
via MITRE·12:47 PM
Data Sourced
via MITRE·12:47 PM
DescriptionWeakness
May 24, 57290
Event
via FIRST·01:24 AM

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 vulnerability ID?

The vulnerability ID is CVE-2023-5726.

2

What is the title of the vulnerability?

The title of the vulnerability is 'A website could have obscured the full screen notification by using the file open dialog.'

3

Which operating systems are affected by this vulnerability?

This vulnerability only affects macOS operating systems. Other operating systems are unaffected.

4

What is the severity of CVE-2023-5726?

The severity of CVE-2023-5726 is medium with a severity value of 4.

5

How can I fix CVE-2023-5726?

To fix CVE-2023-5726, you should update your Mozilla Firefox or Mozilla Firefox ESR to versions 119 or 115.4 respectively.

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