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Explay CMS <= 2.1 Persistent XSS and CSRF
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Discovered by hodik
Mail: n.khodov@gmail.com

1. Persistent XSS
This CMS has bad anti-XSS filter that cut only some basic vectors. The loginned user can inject persistent XSS by adding to article text or comment  <img src="http://google.com" onerror="alert(document.cookie)" />

2. CSRF
User can get admin rights if admin open malicious page that contain, for instance:
<img src="http://explay.localhost/admin.php?name=users&page=1&order=user_id&set_admin=2" />
or merely insert it to comment or article text.