Cross-site scripting (XSS) vulnerability in blog/edit.php in Moodle 1.6.x before 1.6.7 and 1.7.x before 1.7.5 allows remote attackers to inject arbitrary web script or HTML via the etitle parameter (blog entry title).
Improper Neutralization of Input During Web Page Generation The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.