{"id":"CVE-2020-8181","details":"A missing file type check in Nextcloud Contacts 3.2.0 allowed a malicious user to upload any file as avatars.","modified":"2026-04-11T23:12:57.296324Z","published":"2020-07-10T16:15:11.703Z","references":[{"type":"WEB","url":"https://hackerone.com/reports/808287%2C"},{"type":"ADVISORY","url":"https://nextcloud.com/security/advisory/?id=NC-SA-2020-024"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/contacts","events":[{"introduced":"0"},{"fixed":"872e74b8ec7a67dd6db597ea4e742c3faa169c93"}],"database_specific":{"cpe":"cpe:2.3:a:nextcloud:contacts:*:*:*:*:*:*:*:*","source":"CPE_FIELD","extracted_events":[{"introduced":"0"},{"fixed":"3.3.0"}]}}],"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"],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2020-8181.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"}]}