{"id":"CVE-2020-8294","details":"A missing link validation in Nextcloud Server before 20.0.2, 19.0.5, 18.0.11 allows execution of a stored XSS attack using Internet Explorer when saving a 'javascript:' URL in markdown format.","modified":"2026-08-07T15:14:53.127151Z","published":"2021-02-03T17:15:16.293Z","related":["openSUSE-SU-2021:0262-1","openSUSE-SU-2021:0274-1","openSUSE-SU-2021:1068-1"],"references":[{"type":"ADVISORY","url":"https://nextcloud.com/security/advisory/?id=NC-SA-2021-002"},{"type":"REPORT","url":"https://hackerone.com/reports/1023787"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/server","events":[{"introduced":"0"},{"fixed":"148e875f8edbf2f66d1f9a5d1a13ececc5b4da4d"},{"introduced":"9c63433cde916cd35b0708b398910cbc1cb52315"},{"fixed":"666ad85b63cf29f10377188992774c57b9d1e69f"},{"introduced":"615b994816710a595243d704c9be445f736b4b41"},{"fixed":"96f99a40f5569936f1951f1ccef8ea5fa25b607b"}],"database_specific":{"cpe":"cpe:2.3:a:nextcloud:nextcloud_server:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"18.0.11"},{"introduced":"19.0.0"},{"fixed":"19.0.5"},{"introduced":"20.0.0"},{"fixed":"20.0.2"}],"source":"CPE_RANGE"}}],"versions":["v18.0.11RC2","v19.0.5RC2","v20.0.2RC2","v19.0.5RC1","v20.0.2RC1","v18.0.11RC1","v20.0.1","v20.0.1RC1","v18.0.10","v19.0.4","v18.0.10RC2","v19.0.4RC2","v20.0.0","v18.0.10RC1","v19.0.40RC1","v18.0.9","v19.0.3","v18.0.9RC1","v19.0.3RC1","v18.0.8","v19.0.2","v18.0.8RC2","v19.0.2RC2","v19.0.2RC1","v18.0.8RC1","v18.0.7","v19.0.1","v18.0.7RC1","v19.0.1RC1","v18.0.6","v18.0.5","v17.0.5RC1","v19.0.0","v18.0.4","v18.0.4RC2","v18.0.4RC1","v18.0.2","v18.0.2RC2","v18.0.2RC1","v18.0.1","v18.0.1RC3","v18.0.1RC2","v18.0.1RC1","v18.0.0","v18.0.0RC2","v18.0.0RC1","v18.0.0beta4","v18.0.0beta3","v18.0.0beta2","v18.0.0beta1","v17.0.0beta4","v17.0.0beta3","v17.0.0beta2","v17.0.0beta1","v16.0.0RC1","v16.0.0beta3","v16.0.0beta2","v16.0.0beta1","v16.0.0alpha1","v15.0.0RC1","v15.0.0beta2","v15.0.0beta1","v14.0.0RC2","v14.0.0RC1","v14.0.0beta4","v14.0.0beta3","v14.0.0beta2","v14.0.0beta1","v13.0.0RC1","v13.0.0beta4","v13.0.0beta3","v13.0.0beta2","v13.0.0beta1","v12.0.0beta4","v12.0.0beta3","v12.0.0beta2","v12.0.0beta1","v11.0.0","v11.0RC2","v9.1.0beta1","v9.0.0beta2","v9.0beta1","v8.2RC1","v8.2beta1","v8.1RC2","v8.1.0beta2","v8.1.0beta1","v8.1.0alpha2","v8.1.0alpha1","v8.0.0","v8.0.0RC2","v8.0.0RC1","v8.0.0beta2","v8.0.0beta1","v8.0.0alpha2","v8.0.0alpha1","v7.0.0beta1","v7.0.0alpha2","v6.0.0RC2","v6.0.0RC1","v6.0.0beta5","v6.0.0beta4","v6.0.0beta3","v6.0.0beta2","v6.0.0alpha2","v5.0.0","v5.0.0RC3","v5.0.0RC2","v5.0.0RC1","v5.0.0beta2","v5.0.0beta1","v5.0.0alpha1","v4.5.0","v4.5.0RC3","v4.5.0RC2","v4.5.0RC1","v4.5.0beta4","v4.5.0beta3","v4.0.6","v4.0.5","v4.0.4","v4.0.1","v4.0.0","v4.0.0RC2","v4.0.0RC","v4.0.0beta","v3.0","v1.0.0beta1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8294.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"}]}