Multiple cross-site scripting (XSS) vulnerabilities in Claroline before 1.8.10 allow remote attackers to inject arbitrary web script or HTML via (1) the cwd parameter in a rqMkHtml action to document/rqmkhtml.php, or the query string to (2) announcements/announcements.php, (3) calendar/agenda.php, (4) course/index.php, (5) course_description/index.php, (6) document/document.php, (7) exercise/exercise.php, (8) group/group_space.php, (9) phpbb/newtopic.php, (10) phpbb/reply.php, (11) phpbb/viewtopic.php, (12) wiki/wiki.php, or (13) work/work.php in claroline/.