Sept. 11, 2023, 9:15 a.m. |

National Vulnerability Database web.nvd.nist.gov

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.

add-in blocklist cve entry esr excel files firefox thunderbird vulnerability warning xll

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