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.
docs.moodle.org/en/Moodle_1.8.13_release_notes
docs.moodle.org/en/Moodle_1.9.9_release_notes
lists.fedoraproject.org/pipermail/package-announce/2010-June/043285.html
lists.fedoraproject.org/pipermail/package-announce/2010-June/043291.html
lists.fedoraproject.org/pipermail/package-announce/2010-June/043340.html
lists.opensuse.org/opensuse-security-announce/2010-08/msg00001.html
moodle.org/mod/forum/discuss.php?d=152366
secunia.com/advisories/40248
secunia.com/advisories/40352
tracker.moodle.org/browse/MDL-22040
www.openwall.com/lists/oss-security/2010/06/21/2
www.vupen.com/english/advisories/2010/1530
www.vupen.com/english/advisories/2010/1571
bugzilla.redhat.com/show_bug.cgi?id=605809