Nextcloud Server before 12.0.8 and 13.0.3 suffers from improper checks of dropped permissions for incoming shares allowing a user to still request previews for files it should not have access to.
{ "versions": [ { "introduced": "0" }, { "fixed": "12.0.8" }, { "introduced": "13.0.0" }, { "fixed": "13.0.3" } ] }
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2018-3762.json"