Multiple cross-site scripting (XSS) vulnerabilities in Cacti 0.8.7e allow remote attackers to inject arbitrary web script or HTML via vectors related to (1) graph.php, (2) include/topgraphheader.php, (3) lib/htmlform.php, and (4) lib/timespansettings.php, as demonstrated by the (a) graphend or (b) graphstart parameters to graph.php; (c) the date1 parameter in a tree action to graphview.php; and the (d) pagerefresh and (e) defaultdualpanewidth parameters to graphsettings.php.