CVE-2022-34479

Description

A malicious website that could create a popup could have resized the popup to overlay the address bar with its own content, resulting in potential user confusion or spoofing attacks. <br>*This bug only affects Thunderbird for Linux. Other operating systems are unaffected.*. This vulnerability affects Firefox < 102, Firefox ESR < 91.11, Thunderbird < 102, and Thunderbird < 91.11.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.11%
Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org Vendor Advisory mozilla.org
Affected: Mozilla Firefox
Affected: Mozilla Firefox ESR
Affected: Mozilla Thunderbird
Published at:
Updated at:

References

Link Tags
https://www.mozilla.org/security/advisories/mfsa2022-24/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-26/ vendor advisory
https://www.mozilla.org/security/advisories/mfsa2022-25/ vendor advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1745595 vendor advisory issue tracking permissions required

Frequently Asked Questions

What is the severity of CVE-2022-34479?
CVE-2022-34479 has been scored as a medium severity vulnerability.
How to fix CVE-2022-34479?
To fix CVE-2022-34479, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-34479 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-34479 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-34479?
CVE-2022-34479 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.