{"id":"CVE-2020-15680","details":"If a valid external protocol handler was referenced in an image tag, the resulting broken image size could be distinguished from a broken image size of a non-existent protocol handler. This allowed an attacker to successfully probe whether an external protocol handler was registered. This vulnerability affects Firefox \u003c 82.","modified":"2026-05-04T08:29:06.854515Z","published":"2020-10-22T21:15:13.263Z","withdrawn":"2026-05-04T08:29:06.854515Z","related":["openSUSE-SU-2024:10600-1","openSUSE-SU-2024:14572-1"],"references":[{"type":"ADVISORY","url":"https://www.mozilla.org/security/advisories/mfsa2020-45/"},{"type":"REPORT","url":"https://bugzilla.mozilla.org/show_bug.cgi?id=1658881"}],"affected":[{"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15680.json","unresolved_ranges":[{"events":[{"introduced":"0"},{"fixed":"82.0"}]}]}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"}]}