Vulnerability ID: HTB22844 Reference: http://www.htbridge.ch/advisory/xss_in_gd_star_rating_wordpress_plugin.html Product: GD Star Rating wordpress plugin Vendor: Milan Petrovic ( http://www.gdstarrating.com/ ) Vulnerable Version: 1.9.7 Vendor Notification: 08 February 2011 Vulnerability Type: XSS (Cross Site Scripting) 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 "/wp-content/plugins/gd-star-rating/widgets/widget_top.php" script to properly sanitize user-supplied input in "wpfn" variable when register_globals is on. 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. The following PoC is available: http://[host]/wp-content/plugins/gd-star-rating/widgets/widget_top.php?wpfn=";><script>alert("XSS");</script>
