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/.