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.
{ "versions": [ { "introduced": "0" }, { "fixed": "2.6.5" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8189.json"