LaikeTui 3.5.0 allows remote authenticated users to execute arbitrary PHP code by using index.php?module=system&action=pay to upload a ZIP archive containing a .php file, as demonstrated by the ../../../../phpinfo.php pathname.
LaikeTui 3.5.0 allows remote authenticated users to delete arbitrary files, as demonstrated by deleting install.lock in order to reinstall the product in an attacker-controlled manner. This deletion is possible via directory traversal in the uploadImg, oldpic, or imgurl parameter.