{"id":"CVE-2020-6809","details":"When a Web Extension had the all-urls permission and made a fetch request with a mode set to 'same-origin', it was possible for the Web Extension to read local files. This vulnerability affects Firefox \u003c 74.","modified":"2026-05-04T08:34:29.473868Z","published":"2020-03-25T22:15:12.623Z","withdrawn":"2026-05-04T08:34:29.473868Z","related":["openSUSE-SU-2024:10600-1","openSUSE-SU-2024:14572-1"],"references":[{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-08/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1420296"}],"affected":[{"database_specific":{"unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"74.0"}]}],"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6809.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}