Cross-site scripting (XSS) vulnerability in the MNET access-control interface in Moodle before 1.8.13 and 1.9.x before 1.9.9 allows remote attackers to inject arbitrary web script or HTML via vectors involving extended characters in a username.
https://bugzilla.redhat.com/show_bug.cgi?id=605809
http://www.vupen.com/english/advisories/2010/1571
http://www.vupen.com/english/advisories/2010/1530
http://www.openwall.com/lists/oss-security/2010/06/21/2
http://tracker.moodle.org/browse/MDL-22040
http://secunia.com/advisories/40352
http://secunia.com/advisories/40248
http://moodle.org/mod/forum/discuss.php?d=152366
http://lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043340.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043291.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-June/043285.html