An attacker can use the format parameter to inject arbitrary commands in the npm package morgan < 1.9.1.
{
"cpe": "cpe:2.3:a:morgan_project:morgan:*:*:*:*:*:node.js:*:*",
"source": "CPE_RANGE",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "1.9.1"
}
]
}