GetSimple CMS 3.3.16 allows in parameter 'permalink' on the Settings page persistent Cross Site Scripting which is executed when you create and open a new page
{
"extracted_events": [
{
"cpe": "cpe:2.3:a:get-simple:getsimple_cms:3.3.16:*:*:*:*:*:*:*",
"range": [
{
"introduced": "3.3.16"
},
{
"last_affected": "3.3.16"
}
],
"source": "CPE_STRING"
}
]
}