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level12.php
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level12.php
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<!DOCTYPE html><!--STATUS OK--><html>
<head>
<meta http-equiv="content-type" content="text/html;charset=utf-8">
<script>
window.alert = function()
{
confirm("完成的不错！");
window.location.href="level13.php?keyword=good job!";
}
</script>
<title>欢迎来到level12</title>
</head>
<body>
<h1 align=center>欢迎来到level12</h1>
<?php
ini_set("display_errors", 0);
$str = $_GET["keyword"];
$str00 = $_GET["t_sort"];
$str11=$_SERVER['HTTP_USER_AGENT'];
$str22=str_replace(">","",$str11);
$str33=str_replace("<","",$str22);
echo "<h2 align=center>没有找到和".htmlspecialchars($str)."相关的结果.</h2>".'<center>
<form id=search>
<input name="t_link" value="'.'" type="hidden">
<input name="t_history" value="'.'" type="hidden">
<input name="t_sort" value="'.htmlspecialchars($str00).'" type="hidden">
<input name="t_ua" value="'.$str33.'" type="hidden">
</form>
</center>';
?>
<center><img src=level12.png></center>
<?php
echo "<h3 align=center>payload的长度:".strlen($str)."</h3>";
?>
</body>
</html>