An issue was discovered in OpenTSDB 2.3.0. There is XSS in parameter json to the /q URI.
{
    "nvd_published_at": "2018-06-29T05:29:00Z",
    "severity": "MODERATE",
    "cwe_ids": [
        "CWE-79"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2022-11-22T19:26:46Z"
}