Vulnerability Description
Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects Firefox < 117, Firefox ESR < 102.15, Firefox ESR < 115.2, Thunderbird < 102.15, and Thunderbird < 115.2.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 117.0 |
| Mozilla | Firefox Esr | < 102.15 |
| Mozilla | Thunderbird | < 115.2 |
References
- https://bugzilla.mozilla.org/show_bug.cgi?id=1843758Issue TrackingPermissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-34/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-35/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-37/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-38/Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1843758Issue TrackingPermissions Required
- https://www.mozilla.org/security/advisories/mfsa2023-34/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-35/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-36/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-37/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2023-38/Vendor Advisory
FAQ
What is CVE-2023-4581?
CVE-2023-4581 is a vulnerability with a CVSS score of 4.3 (MEDIUM). Excel `.xll` add-in files did not have a blocklist entry in Firefox's executable blocklist which allowed them to be downloaded without any warning of their potential harm. This vulnerability affects F...
How severe is CVE-2023-4581?
CVE-2023-4581 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2023-4581?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Mozilla Firefox Esr, Mozilla Thunderbird.