Vulnerability ID: HTB22873 Reference: http://www.htbridge.ch/advisory/xss_in_inline_gallery_wordpress_plugin.html Product: Inline Gallery wordpress plugin Vendor: m0n5t3r ( http://m0n5t3r.info/work/wordpress-plugins/inline-gallery/ ) Vulnerable Version: 0.3.9 Vendor Notification: 22 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: The vulnerability exists due to failure in the "/wp-content/plugins/inline-gallery/browser/browser.php" script to properly sanitize user-supplied input in "do" variable. User can execute arbitrary JavaScript code within the vulnerable application. 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/inline-gallery/browser/browser.php?do=%3Cscript%3Ealert%28%22XSS%22%29;%3C/script%3E