Cross-site scripting (XSS) vulnerability in include/top_graph_header.php in Cacti before 0.8.7g allows remote attackers to inject arbitrary web script or HTML via the graph_start parameter to graph.php. NOTE: this vulnerability exists because of an incorrect fix for CVE-2009-4032.2.b.

SQL injection vulnerability in graph.php in Cacti 0.8.7e and earlier allows remote attackers to execute arbitrary SQL commands via a crafted rra_id parameter in a GET request in conjunction with a valid rra_id value in a POST request or a cookie, which causes the POST or cookie value to bypass the validation routine, but inserts the $_GET value into the resulting query.

SQL injection vulnerability in templates_export.php in Cacti 0.8.7e and earlier allows remote attackers to execute arbitrary SQL commands via the export_item_id parameter.

Cacti 0.8.6e and earlier does not perform proper input validation to protect against common attacks, which allows remote attackers to execute arbitrary commands or SQL by sending a legitimate value in a POST request or cookie, then specifying the attack string in the URL, which causes the get_request_var function to return the wrong value in the $_REQUEST variable, which is cleansed while the original malicious $_GET value remains unmodified, as demonstrated in (1) graph_image.php and (2) graph.php.

config.php in Cacti 0.8.6e and earlier allows remote attackers to set the no_http_headers switch, then modify session information to gain privileges and disable the use of addslashes to conduct SQL injection attacks.