A SSRF issue was discovered in Concrete CMS through 8.5.5. Users can access forbidden files on their local network. A user with permissions to upload files from external sites can upload a URL that redirects to an internal resource of any file type. The redirect is followed and loads the contents of the file from the redirected-to server. Files of disallowed types can be uploaded.
{
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "8.5.6"
}
],
"source": "CPE_RANGE",
"cpe": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*"
}