Nextcloud Server prior to 20.0.6 is vulnerable to reflected cross-site scripting (XSS) due to lack of sanitization in OC.Notification.show.
OC.Notification.show
{ "versions": [ { "introduced": "0" }, { "fixed": "20.0.6" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-22878.json"
[ { "events": [ { "introduced": "0" }, { "last_affected": "34" } ] } ]