Security advisory

{
  "id": "318cc552f94ada8dd0bd122cd595baf903683d778a69224c59c980e15a81571f",
  "url": "https://osv.dev/vulnerability/CVE-2021-30637",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-30637",
    "summary": "htmly 2.8.0 allows stored XSS via the blog title, Tagline, or Description to config.html.php.",
    "evidence": "osv:CVE-2021-30637",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-30637",
      "aliases": [
        "CVE-2021-30637"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/danpros/htmly",
              "type": "GIT",
              "events": [
                {
                  "introduced": "d3b6a67a57321afcb320bc1bbbe57a3ba62c6980"
                },
                {
                  "last_affected": "d3b6a67a57321afcb320bc1bbbe57a3ba62c6980"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:htmly:htmly:2.8.0:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.8.0"
                      },
                      {
                        "last_affected": "2.8.0"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.8.0",
            "v2.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-30637.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:39.774261580Z",
      "provider": "osv",
      "references": [
        "https://github.com/danpros/htmly/issues/456"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-30637",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385823,
  "published_at": "2021-04-13T05:15:13.993+00:00"
}