как исправить xss
Вот код странички, в поле почта ввести "><script>alert(1)</script> или "><script>alert('1')</script> собственно xss как исправить? сайт icqpm.ex6.ru и эта xss опасна?
Код:
<?php
$icq=$_POST['icq'];
$email=$_POST['email'];
?>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>OnLine ICQ-Base primary mail icq base primary online vzlom acüêa hack primary base uin 6dig yçíaòü ïpèìaê øecòèçíaêa brute xaker áaça ïpèìaêoâ icq mail ìûëo ïo÷òa</title>
<meta name="description" content="primary mail icq base" />
<meta name="keywords" content="primary mail icq base primary online vzlom acüêa hack primary base uin 6dig yçíaòü ïpèìaê øecòèçíaêa brute xaker áaça ïpèìaêoâ icq mail ìûëo ïo÷òa" />
<style type="text/css">
A {text-decoration: none;}
A:link, A:active, A:visited {color: blue;}
A:hover {text-decoration: underline;}
</style>
<script language="JavaScript"><!--
function reset_form() {
document.forms[0].elements[0].value="";
document.forms[0].elements[1].value="";
}
//--></script>
</head>
<body bgcolor="#FAFAF5">
<table border="0" width="100%" height="100%" align="center">
<tr valign="top"><td>
<h1 align="center"> <img src=/logo.jpg> <br><center>B áaçe <b><i>117</b></i> íoìepoâ</center>
</td></tr>
<tr><td valign="middle">
<p align="center"><table border="1" align="center" bordercolor="#000000" cellpadding="3" cellspacing="2">
<tr><td><b>ICQ:</b></td><td><form name="icq" action="index.php" method="post"><input type="text" name="icq" size="20" maxlength="6" value="<?php echo $icq; ?>"></td></tr>
<tr><td><b>E-mail:</b></td><td><input type="text" name="email" size="20" maxlength="60" value="<?php echo $email; ?>"></td></tr>
<tr><td colspan="2" align="center"><input type="submit" value="Search"> <input type="button" onclick="reset_form()" value="Reset"></form></td></tr>
</table>
<br>
<i>Boçìoæeí ïoècê ïo ìacêe (<b>?</b> èëè <b>*</b>)</i></p>
<?php
// *****Hacòpoéêè*****
$hostname="sql-3.ayola.net"; // Aäpec MySQL-cepâepa;
$user=""; // Ëoãèí;
$password=""; // Ïapoëü;
$db=""; // Èìÿ áaçû äaííûx;
$limit=1; // Ëèìèò âûâoäèìûx peçyëüòaòoâ ça paç;
// ********Koä********
if ((isset($icq) and isset($email)) and ($icq!="" or $email!="" )) {
if (($icq>99999 and $icq<1000000) or ($icq=="" and $email!="") or (strchr($icq,"*") or strchr($icq,"?"))) {
if (strlen($email)>2 or ($email=="" and $icq!="") or (strchr($email,"*") or strchr($email,"?"))) {
if (@mysql_connect($hostname,$user,$password)) {
@mysql_select_db($db);
// Çaùèòa oò SQL-èíúeêöèé
$icq=@mysql_escape_string($icq);
$email=@mysql_escape_string($email);
//***********************
// Yäaëeíèe ïceâäo-ìacêè
$icq=str_replace("%","\%",$icq);
$icq=str_replace("_","\_",$icq);
$email=str_replace("%","\%",$email);
$email=str_replace("_","\_",$email);
// Ïpèìeíeíèÿ ìacêè ïoècêa
$icq=str_replace("*","%",$icq);
$icq=str_replace("?","_",$icq);
$email=str_replace("*","%",$email);
$email=str_replace("?","_",$email);
if ($icq!="" and $email!="") {$where="uin LIKE '$icq' and prim_mail LIKE '$email'";}
else {
if ($icq!="") {$where="uin LIKE '$icq'";}
if ($email!="") {$where="prim_mail LIKE '$email'";}
}
$result=@mysql_query("SELECT * FROM icq_2008 WHERE ($where) order by uin limit $limit");
$rows=@mysql_num_rows($result);
if ($rows!=0) {
echo <<<EOF
<p align="center"><table border="0" align="center" bgcolor="silver" cellpadding="25" cellspacing="5"><tr><td>
<code style="color:#000000;">
EOF;
$i=0;
while ($i<$rows) {
@mysql_data_seek($result,$i);
$icq=@mysql_fetch_array($result);
$uin=$icq["uin"];
$email=htmlspecialchars($icq["prim_mail"]);
echo <<<EOF
$uin<b style="color:blue;">:</b>$email<br>\n
EOF;
$i++;
}
echo <<<EOF
</code>
</td></tr></table></p>
EOF;
echo "\n<h3 align=\"center\" style=\"color:blue;\">Bceão íaéäeío: $rows</h3>\n";
} // if $rows!=0
else {
if ((strchr($icq,"%") or strchr($icq,"_")) or (strchr($email,"%") or strchr($email,"_"))) {
echo "\n<h3 align=\"center\" style=\"color:blue;\">Bceão íaéäeío: $rows</h3>\n";
echo "\n<h3 align=\"center\" style=\"color:red;\">Ïoïpoáyéòe çaäaòü äpyãyþ ìacêy!</h3>\n";
}
else {echo "\n<h3 align=\"center\" style=\"color:red;\">Taêoão íoìepa ICQ èëè E-mail íeò â íaøeé áaçe!</h3>\n";}
} // else: $rows!=0
}
else {echo "<h3 align=\"center\" style=\"color:red;\">He ìoãy ïpèêoííeêòèòücÿ ê áaçe!</h3>";}
@mysql_free_result($result); // ocâoáoæäaeò ïaìÿòü
@mysql_close();
} // if $email>3
else {echo "<h3 align=\"center\" style=\"color:red;\">Äëèíía E-mail`a äoëæía áûòü >2 cèìâoëoâ!</h3>";}
} // if $icq>99999 or $icq<1000000
else {echo "<h3 align=\"center\" style=\"color:red;\">B íaøeé áaçe TOËüKO øecòèçíaêè (100000-999999)!</h3>";}
} // if $icq and $email not empty
?>
</td></tr>
<tr valign="bottom"><td align="center">
<p align="center"><small><b> <br>Äpyçüÿ ïpoeêòa:<br>
<a href='http://networkterrorism.com'>Network Terrorism</a> <br>Bíèìaíèe! B íaøeé áaçe âceãäa áyäyò òoëüêo íacòoÿùèè ïpèìaêè. To ecòü ëþáoé ïpèìapè ìeéë áyäeò ïoäxoäèòü ê íoìepy ía caéòe icq.com/password Bce ïpeäëoæeíèÿ ïoæeëaíèÿ è ïpo÷ee â <a href='http://icqpm.ex6.ru/gbook'> Ãocòeâoé êíèãe.</a> Co âpeìeíeì ìíoãoe ïoìeíÿeòcÿ... Ycòaíoâëeí ëèìèò âûâoäèìûx çaïpococ paâíûì 1. Ýòo cäeëaío äëÿ çaùèòû oò êoïèpoâaíèÿ áaçû. Hoìepa íaxoäÿùèecÿ òyò íe áyäyò yäaëeíû. Äaæe íe ïpocèòe!<br>Câÿçü c aäìèíècòpaöèeé:<br> e-mail: icq-pm[dog]ya.ru</b></small><br><center><!--LiveInternet counter--><script type="text/javascript"><!--
document.write("<a href='http://www.liveinternet.ru/click' "+
"target=_blank><img src='http://counter.yadro.ru/hit?t28.6;r"+
escape(document.referrer)+((typeof(screen)=="undefined")?"":
";s"+screen.width+"*"+screen.height+"*"+(screen.colorDepth?
screen.colorDepth:screen.pixelDepth))+";u"+escape(document.URL)+
";"+Math.random()+
"' alt='' title='LiveInternet: ïoêaçaío êoëè÷ecòâo ïpocìoòpoâ è"+
" ïoceòèòeëeé' "+
"border=0 width=88 height=120><\/a>")//--></script><!--/LiveInternet--></center></p>
</td></tr>
</table>
</body>
</html>
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