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.

BigTree before 4.2.22 has XSS in the Users management page via the name or company field.

An issue was discovered in BigTree 4.2.22. There is cross-site scripting (XSS) in /core/inc/lib/less.php/test/index.php because of a $_SERVER['REQUEST_URI'] echo, as demonstrated by the dir parameter in a file=charsets action.

BigTree-CMS contains a Cross Site Scripting (XSS) vulnerability in /users/create that can result in The low-privileged users can use this vulnerability to attack high-privileged(Developer) users.. This attack appear to be exploitable via no. This vulnerability appears to have been fixed in after commit b652cfdc14d0670c81ac4401ad5a04376745c279.