{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2023-4581","assignerOrgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","state":"PUBLISHED","assignerShortName":"mozilla","dateReserved":"2023-08-29T03:36:56.674Z","datePublished":"2023-09-11T08:01:45.092Z","dateUpdated":"2025-12-18T15:23:06.218Z"},"containers":{"cna":{"affected":[{"product":"Firefox","vendor":"Mozilla","versions":[{"lessThan":"117","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"Firefox ESR","vendor":"Mozilla","versions":[{"lessThan":"102.15","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"Firefox ESR","vendor":"Mozilla","versions":[{"lessThan":"115.2","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThan":"102.15","status":"affected","version":"unspecified","versionType":"custom"}]},{"product":"Thunderbird","vendor":"Mozilla","versions":[{"lessThan":"115.2","status":"affected","version":"unspecified","versionType":"custom"}]}],"descriptions":[{"lang":"en","value":"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.","supportingMedia":[{"type":"text/html","base64":false,"value":"Excel <code>.xll</code> 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."}]}],"title":"XLL file extensions were downloadable without warnings","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1843758"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-34/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-35/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-36/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-37/"},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-38/"}],"credits":[{"lang":"en","value":"Umar Farooq (@Puf)"}],"providerMetadata":{"orgId":"f16b083a-5664-49f3-a51e-8d479e5ed7fe","shortName":"mozilla","dateUpdated":"2025-12-18T15:23:06.218Z"}},"adp":[{"providerMetadata":{"orgId":"af854a3a-2127-422b-91ae-364da2661108","shortName":"CVE","dateUpdated":"2024-08-02T07:31:06.542Z"},"title":"CVE Program Container","references":[{"url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1843758","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-34/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-35/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-36/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-37/","tags":["x_transferred"]},{"url":"https://www.mozilla.org/security/advisories/mfsa2023-38/","tags":["x_transferred"]}]},{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-09-26T16:02:47.469373Z","id":"CVE-2023-4581","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2024-09-26T16:04:42.184Z"}}]}}