CVE-2005-2148

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.