{"cve":"CVE-2020-8227","nvd":{"published":"2020-08-21T21:15:11.967","modified":"2026-06-17T03:26:05.493","status":"Modified","description":"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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:H","score":6.8},"cwes":["CWE-22"],"references":["https://hackerone.com/reports/590319","https://nextcloud.com/security/advisory/?id=NC-SA-2020-032","https://security.gentoo.org/glsa/202009-09","https://hackerone.com/reports/590319","https://nextcloud.com/security/advisory/?id=NC-SA-2020-032"],"products":["nextcloud:desktop"],"source":"nvd","synced_at":"2026-10-19T21:09:20.498348299+00:00"},"epss":{"cve":"CVE-2020-8227","score":0.25769,"percentile":0.97971,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}