Moodle XSS Vulnerability (13.07.04) Vendor: Moodle URL: http://moodle.org/ Version: Moodle 1.3.2+, Moodle 1.4 dev Risk: XSS Description: "Moodle is a course management system (CMS) - a software package designed to help educators create quality online courses." See http://moodle.org/ for a detailed description. Cross Site Scripting: It's possible to inject HTML or JavaScript code into the variable "file" of help.php. The bug is similar to the vuln discovered by Bartek Nowotarski [1]. http://www.example.com/help.php?file={XSS} Solution: Martin Dougiamas the lead developer of Moodle fixed the bug in CVS Stable and Development but there is not any new release yet. Here [2] you can find the patched version of help.php. > $file = clean_text($file); > notify("Help file '$file' could not be found!"); Credits: Thomas Waldegger (morpheus) BuHa-Security Board http://www.buha.info/board/ [1] http://www.securityfocus.com/archive/1/361841 [2] http://cvs.sourceforge.net/viewcvs.py/moodle/moodle/help.php