Multiple cross-site scripting (XSS) vulnerabilities in PHPlist 2.10.1 and earlier allow remote attackers to inject arbitrary web script or HTML via the (1) listname parameter in (a) admin/editlist.php, (2) title parameter in (b) admin/spageedit.php, (3) title field in (c) admin/template.php, (4) filter, (5) delete, and (6) start parameters in (d) admin/eventlog.php, (7) id parameter in (e) admin/configure.php, (8) find parameter in (f) admin/users.php, (9) start parameter in (g) admin/admin.php, and (10) action parameter in (h) admin/fckphplist.php.