Security advisory

{
  "id": "123ddd7b5aa94181dd061c520329064de64670e70d181e85dbc27a00ddacaefe",
  "url": "https://osv.dev/vulnerability/CVE-2021-36755",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-36755",
    "summary": "Nightscout Web Monitor (aka cgm-remote-monitor) 14.2.2 allows XSS via a crafted X-Forwarded-For header.",
    "evidence": "osv:CVE-2021-36755",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-36755",
      "aliases": [
        "CVE-2021-36755"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/nightscout/cgm-remote-monitor",
              "type": "GIT",
              "events": [
                {
                  "introduced": "46418c7ff275ae80de457209c1686811e033b5dd"
                },
                {
                  "last_affected": "46418c7ff275ae80de457209c1686811e033b5dd"
                },
                {
                  "fixed": "68f3f90e30cc1da57f7e5069f9c4e1467973521f"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:cgm-remote-monitor_project:cgm-remote-monitor:14.2.2:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "14.2.2"
                      },
                      {
                        "last_affected": "14.2.2"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "68f3f90e30cc1da57f7e5069f9c4e1467973521f"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "14.2.2"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36755.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:57.558443629Z",
      "provider": "osv",
      "references": [
        "https://github.com/nightscout/cgm-remote-monitor/commit/68f3f90e30cc1da57f7e5069f9c4e1467973521f"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-36755",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386542,
  "published_at": "2021-07-16T00:15:07.73+00:00"
}