CVE-2023-4581

MediumCVSS 4.3/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 4.3/10CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Affected software

No affected versions have been published.

Timeline

Published
Sep 11, 2023
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2023-4581: Medium severity, CVSS 4.3 | Vulnix