Concrete CMS (previously concrete5) before 9.1 did not have a rate limit for password resets.
{
"cpe": "cpe:2.3:a:concretecms:concrete_cms:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "0"
},
{
"fixed": "9.1.0"
}
],
"source": "CPE_FIELD"
}