{"id":"CVE-2020-8280","details":"A missing file type check in Nextcloud Contacts 3.4.0 allows a malicious user to upload SVG files as PNG files to perform cross-site scripting (XSS) attacks.","modified":"2026-03-14T10:34:38.689922Z","published":"2021-01-06T21:15:14.583Z","references":[{"type":"ADVISORY","url":"https://nextcloud.com/security/advisory/?id=NC-SA-2020-044"},{"type":"EVIDENCE","url":"https://hackerone.com/reports/998422"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/contacts","events":[{"introduced":"0"},{"fixed":"c6fd09aef726e8758ed9f2af19ef630a36658892"}],"database_specific":{"versions":[{"introduced":"0"},{"fixed":"3.4.1"}]}}],"versions":["2.0.0","v2.0.1","v2.1.0","v2.1.1","v2.1.2","v2.1.3","v2.1.4","v2.1.5","v2.1.6","v2.1.6-beta","v3.0.0","v3.0.0-alpha1","v3.0.0-beta1","v3.0.1","v3.1.0","v3.1.1","v3.1.2","v3.1.3","v3.1.4","v3.1.5","v3.1.6","v3.1.9","v3.2.0","v3.3.0","v3.4.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8280.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}