Moodle Improper Neutralization of Input During Web Page Generation (Cross-site Scripting) Vulnerability - CVE-2010-2230
The KSES text cleaning filter in lib/weblib.php in Moodle before 1.8.13 and 1.9.x before 1.9.9 does not properly handle vbscript URIs which allows remote authenticated users to conduct cross-site scripting (XSS) attacks via HTML input.