{"id":"CVE-2020-6813","details":"When protecting CSS blocks with the nonce feature of Content Security Policy, the @import statement in the CSS block could allow an attacker to inject arbitrary styles, bypassing the intent of the Content Security Policy. This vulnerability affects Firefox \u003c 74.","modified":"2026-05-04T08:34:28.970201Z","published":"2020-03-25T22:15:12.937Z","withdrawn":"2026-05-04T08:34:28.970201Z","related":["SUSE-SU-2020:1899-1","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=1605814"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-6813.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"74.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}