{"id":"UBUNTU-CVE-2020-8227","details":"Missing sanitization of a server response in Nextcloud Desktop Client 2.6.4 for Linux allowed a malicious Nextcloud Server to store files outside of the dedicated sync directory.","modified":"2026-04-22T12:43:25.725703Z","published":"2020-08-21T21:15:00Z","upstream":["CVE-2020-8227"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-8227"},{"type":"REPORT","url":"https://nextcloud.com/security/advisory/?id=NC-SA-2020-032"},{"type":"REPORT","url":"https://hackerone.com/reports/590319"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-8227"}],"affected":[{"package":{"name":"nextcloud-desktop","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/nextcloud-desktop@2.6.2-1build1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.5.3-1","2.6.0-1","2.6.1-1","2.6.1-2","2.6.2-1","2.6.2-1build1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.6.2-1build1","binary_name":"caja-nextcloud"},{"binary_version":"2.6.2-1build1","binary_name":"dolphin-nextcloud"},{"binary_version":"2.6.2-1build1","binary_name":"libnextcloudsync0"},{"binary_version":"2.6.2-1build1","binary_name":"nautilus-nextcloud"},{"binary_version":"2.6.2-1build1","binary_name":"nemo-nextcloud"},{"binary_version":"2.6.2-1build1","binary_name":"nextcloud-desktop"},{"binary_version":"2.6.2-1build1","binary_name":"nextcloud-desktop-cmd"},{"binary_version":"2.6.2-1build1","binary_name":"nextcloud-desktop-common"},{"binary_version":"2.6.2-1build1","binary_name":"nextcloud-desktop-l10n"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-8227.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H"},{"type":"Ubuntu","score":"low"}]}