An issue was discovered in Plataformatec Devise before 4.7.1. It confirms accounts upon receiving a request with a blank confirmation_token, if a database record has a blank value in the confirmation_token column. (However, there is no scenario within Devise itself in which such database records would exist.)
{
"cwe_ids": [
"CWE-284"
],
"github_reviewed": true,
"github_reviewed_at": "2019-09-11T22:42:42Z",
"nvd_published_at": "2019-09-08T20:15:10Z",
"severity": "MODERATE"
}