In the 3.1.12 Pro version of Craft CMS, XSS has been discovered in the header insertion field when adding source code at an s/admin/entries/news/new URI.
{
"extracted_events": [
{
"cpe": "cpe:2.3:a:craftcms:craft_cms:3.1.12:*:*:*:pro:*:*:*",
"range": [
{
"introduced": "3.1.12"
},
{
"last_affected": "3.1.12"
}
],
"source": "CPE_STRING"
}
]
}