The Chartkick gem through 3.1.0 for Ruby allows XSS.
{
"github_reviewed": true,
"cwe_ids": [
"CWE-79"
],
"github_reviewed_at": "2019-06-07T10:49:06Z",
"nvd_published_at": "2019-06-06T15:29:00Z",
"severity": "MODERATE"
}