CVE-2023-4581
XLL file extensions were downloadable without warnings
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 3.1 · 4.3 Medium
EPSS < 1%
KEV · Not listed
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