CVE-2023-5727

Description

The executable file warning was not presented when downloading .msix, .msixbundle, .appx, and .appxbundle files, which can run commands on a user's computer. *Note: This issue only affected Windows operating systems. Other operating systems are unaffected.* This vulnerability affects Firefox < 119, Firefox ESR < 115.4, and Thunderbird < 115.4.1.

6.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.16%

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

References

Link	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1847180	vendor advisory issue tracking permissions required
https://www.mozilla.org/security/advisories/mfsa2023-45/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-46/	vendor advisory
https://www.mozilla.org/security/advisories/mfsa2023-47/	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-5727?: CVE-2023-5727 has been scored as a medium severity vulnerability.
How to fix CVE-2023-5727?: To fix CVE-2023-5727, 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-2023-5727 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-5727 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-2023-5727?: CVE-2023-5727 affects Mozilla Firefox, Mozilla Firefox ESR, Mozilla Thunderbird.

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