site/index.php/admin/trees/add/ in BigTree 4.2.22 and earlier allows remote attackers to upload and execute arbitrary PHP code because the BigTreeStorage class in core/inc/bigtree/apis/storage.php does not prevent uploads of .htaccess files.
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2018-10574.json"