PHPMyWind 5.3 has XSS

vendor:

PHPMyWind

by:

小雨

6,1

CVSS

MEDIUM

Cross-Site Scripting (XSS)

CWE

Product Name: PHPMyWind

Affected Version From: 5.3

Affected Version To: 5.3

Patch Exists: NO

Related CWE: CVE-2017-12984

CPE: a:phpmywind:phpmywind:5.3

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: None

2017

PHPMyWind 5.3 is vulnerable to Cross-Site Scripting (XSS) due to insufficient filtration of user-supplied input. An attacker can inject malicious JavaScript code into the 'nickname', 'contact' and 'content' parameters of the 'message_update.php' script, which is then stored in the database and executed in the browser of an unsuspecting user when the malicious message is viewed.

Mitigation:

Input validation should be used to ensure that untrusted data is not used to dynamically generate web content. All user-supplied input should be validated and filtered before being used in the application.

Source

Exploit-DB raw data:

Exploit Title：PHPMyWind 5.3 has XSS
Exploit Author:小雨
Vendor Homepage:http://phpmywind.com
Software Link:http://phpmywind.com/downloads/PHPMyWind_5.3.zip
Version:5.3
CVE:CVE-2017-12984


$r= $dosql->GetOne("SELECT Max(orderid) AS orderid FROM `#@__message`");
                $orderid= (empty($r['orderid']) ? 1 : ($r['orderid'] + 1));
                $nickname= htmlspecialchars($nickname);//游客(xxx)
                $contact= htmlspecialchars($contact); //联系方式
                $content= htmlspecialchars($content); //留言内容
                
                $posttime= GetMkTime(time());
                $ip= gethostbyname($_SERVER['REMOTE_ADDR']);
        
        
                $sql= "INSERT INTO `#@__message` (siteid, nickname, contact, content, orderid, posttime, htop, rtop, checkinfo, ip) VALUES (1, '$nickname', '$contact', '$content', '$orderid', '$posttime', '', '', 'false', '$ip')";
                if($dosql->ExecNoneQuery($sql))
                {
                        ShowMsg('留言成功，感谢您的支持！','message.php');
                        exit();
                }
        }
可以看出使用htmlspecialchars进行过滤,带入库中.
跟进content参数。
127.0.0.1/PHPMyWind_5.3/admin/ message_update.php
<?php require_once(dirname(__FILE__).'/inc/config.inc.php');IsModelPriv('message'); ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>修改留言</title>
<link href="templates/style/admin.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" src="templates/js/jquery.min.js"></script>
<script type="text/javascript" src="templates/js/checkf.func.js"></script>
<script type="text/javascript" src="editor/kindeditor-min.js"></script>
<script type="text/javascript" src="editor/lang/zh_CN.js"></script>
</head>
<body>
<?php
$row = $dosql->GetOne("SELECT * FROM `#@__message` WHERE `id`=$id");
?>
<div class="formHeader"> <span class="title">修改留言</span> <a href="javascript:location.reload();" class="reload">刷新</a> </div>
<form name="form" id="form" method="post" action="message_save.php">
        <table width="100%" border="0" cellspacing="0" cellpadding="0" class="formTable">
                <tr>
                        <td width="25%" height="40" align="right">用户名：</td>
                        <td width="75%"><strong><?php echo $row['nickname'] ?></strong></td>
                </tr>
                <tr>
                        <td height="40" align="right">联系方式：</td>
                        <td><input type="text" name="contact" id="contact" class="input" value="<?php echo $row['contact'] ?>" /></td>
                </tr>
                <tr>
                        <td height="198" align="right">留言内容：</td>
                        <td><textarea name="content" id="content"><?php echo $row['content'] ?></textarea>
                                <script>


p:33
<td><textarea name="content" id="content"><?php echo $row['content'] ?></textarea>

后台直接取出content参数,数据并未进行转义操作。


EXP: “><img/src=x onerror=alert(2001)><“‘