An issue was discovered on zzcms 8.3. There is a vulnerability at /user/del.php that can delete any file by placing its relative path into the zzcms_main table and then making an img add request. This can be leveraged for database access by deleting install.lock.
An issue was discovered in zzcms 8.2. user/adv.php allows remote attackers to delete arbitrary files via directory traversal sequences in the oldimg parameter. This can be leveraged for database access by deleting install.lock.
An issue was discovered in zzcms 8.2. user/ppsave.php allows remote attackers to delete arbitrary files via directory traversal sequences in the oldimg parameter in an action=modify request. This can be leveraged for database access by deleting install.lock.
An issue was discovered in zzcms 8.2. It allows PHP code injection via the siteurl parameter to install/index.php, as demonstrated by injecting a phpinfo() call into /inc/config.php.