source: https://www.securityfocus.com/bid/41194/info
OneCMS is prone to multiple SQL-injection and cross-site scripting vulnerabilities because it fails to sanitize user-supplied input.
Exploiting these issues could allow an attacker to steal cookie-based authentication credentials, control how the site is rendered to the user, compromise the application, access or modify data,or exploit latent vulnerabilities in the underlying database.
OneCMS 2.6.1is vulnerable; prior versions may also be affected.
http://www.example.com/admin/admin.php?cat=cheats%22%3E%3Cscript%3Ealert%28document.cookie%29%3C/script%3E