CVE-2018-17798
An issue was discovered in zzcms 8.3. user/ztconfig.php allows remote attackers to delete arbitrary files via an absolute pathname in the oldimg parameter in an action=modify request. This can be leveraged for database access by deleting install.lock.
Date published : 2018-09-30
https://github.com/seedis/zzcms/blob/master/arbitrary_file_deletion2.md