pfSense before 2.3 allows remote authenticated users to execute arbitrary OS commands via a '|' character in the status_rrd_graph_img.php graph parameter, related to _rrd_graph_img.php.
{
"cpe": "cpe:2.3:a:pfsense:pfsense:*:*:*:*:community:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "2.2.6"
}
],
"source": "CPE_RANGE"
}