{"api_version":"1","generated_at":"2026-04-23T00:41:42+00:00","cve":"CVE-2021-23999","urls":{"html":"https://cve.report/CVE-2021-23999","api":"https://cve.report/api/cve/CVE-2021-23999.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-23999","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-23999"},"summary":{"title":"CVE-2021-23999","description":"If a Blob URL was loaded through some unusual user interaction, it could have been loaded by the System Principal and granted additional privileges that should not be granted to web content. 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This vulnerability affects Firefox ESR < 78.10, Thunderbird < 78.10, and Firefox < 88.","Type":"Description","Title":null},{"CveYear":"2021","CveId":"23999","Ordinal":"2","NoteData":"2021-06-24","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"23999","Ordinal":"3","NoteData":"2021-06-24","Type":"Other","Title":"Modified"}]}}}