GitBook through 2.6.9 allows XSS via a local .md file.
{
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:gitbook:gitbook:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"last_affected": "2.6.9"
}
]
}