CVE-2023-4051

Description

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. This vulnerability affects Firefox < 116, Firefox ESR < 115.2, and Thunderbird < 115.2.

7.5

CVSS

Severity: High

CVSS 3.1 •

EPSS 0.14%

Vendor Advisory mozilla.org

Affected: Mozilla Firefox

Affected: Mozilla Firefox ESR

Affected: Mozilla Thunderbird

References

Link	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1821884	issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2023-29/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-36/
https://www.mozilla.org/security/advisories/mfsa2023-38/

Frequently Asked Questions

What is the severity of CVE-2023-4051?: CVE-2023-4051 has been scored as a high severity vulnerability.
How to fix CVE-2023-4051?: To fix CVE-2023-4051, 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-2023-4051 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-4051 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-2023-4051?: CVE-2023-4051 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.

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