{"id":"CVE-2020-8189","details":"A cross-site scripting error in Nextcloud Desktop client 2.6.4 allowed to present any html (including local links) when responding with invalid data on the login attempt.","modified":"2026-07-08T20:42:57.568431Z","published":"2020-08-21T21:15:11.887Z","references":[{"type":"ADVISORY","url":"https://nextcloud.com/security/advisory/?id=NC-SA-2020-027"},{"type":"ADVISORY","url":"https://security.gentoo.org/glsa/202009-09"},{"type":"EVIDENCE","url":"https://hackerone.com/reports/685552"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nextcloud/desktop","events":[{"introduced":"0"},{"fixed":"adada8b2eecd65d7a587b6abe0ae2aabca9a0b75"}],"database_specific":{"cpe":"cpe:2.3:a:nextcloud:desktop:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.6.5"}],"source":"CPE_RANGE"}}],"versions":["v2.6.4","v2.6.3","v2.6.2","2.6.2-buildtest1","v2.6.2-rc1","v2.6.1","v2.6.1-rc1","v2.6.0-fix1","v2.5.3-rc2","v2.5.3-rc1","v2.5.2","v2.5.2-rc1","v2.5.1","v2.5.0","v2.5.0-rc2","v2.5.0-rc1","v2.5.0-beta2","v2.5.0-beta1","v1.8.0-beta1a","v1.8.0-beta1","v1.6.0","v1.6.0-rc3","v1.6.0-rc2","v1.6.0-rc1","v1.6.0-beta2","v1.6.0-beta1","v1.5.1-rc1","v1.5.0","v1.5.0-beta3","v1.5.0-beta1-2nd","v1.5.0-beta2","v1.5.0-beta1","v1.4.0","v1.4.0-rc1","v1.4.0-beta2","v1.4.0-beta1","v1.3.0-beta3","v1.3.0-beta2","v1.3.0-beta1","v1.2.5","v1.2.4","v1.2.3","v1.2.2","v1.2.1","v1.2.0","v1.1.2","v1.1.0","v1.1.0-beta1","v0.0.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8189.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"}]}