Security advisory

{
  "id": "780ef490d452f67b5f5e1aa9761751e12f2815925f5ffad10d96cb7681cdc26b",
  "url": "https://osv.dev/vulnerability/CVE-2021-20842",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-20842",
    "summary": "Cross-site request forgery (CSRF) vulnerability in EC-CUBE 2 series 2.11.0 to 2.17.1 allows a remote attacker to hijack the authentication of Administrator and delete Administrator via a specially crafted web page.",
    "evidence": "osv:CVE-2021-20842",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2021-20842",
      "aliases": [
        "CVE-2021-20842",
        "GHSA-m9hv-qmqh-33qh"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/ec-cube/ec-cube2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "1004363cf13cc929c0e077c0ac849a6d3c8c10bb"
                },
                {
                  "last_affected": "5b82f42d471cdf3dace7522d58e20915320e6614"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:ec-cube:ec-cube:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.11.0"
                      },
                      {
                        "last_affected": "2.17.1"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20842.json"
          }
        }
      ],
      "modified": "2026-10-24T10:30:27.904004808Z",
      "provider": "osv",
      "references": [
        "https://jvn.jp/en/jp/JVN75444925/index.html",
        "https://www.ec-cube.net/info/weakness/20211111/"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:ec-cube:ec-cube:*:*:*:*:*:*:*:*"
            ],
            "vendor_product": "ec-cube:ec-cube",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.11.0"
                  },
                  {
                    "last_affected": "2.17.1"
                  },
                  {
                    "introduced": "2.11.0"
                  },
                  {
                    "last_affected": "2.17.1"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-20842",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 431924,
  "published_at": "2021-11-24T16:15:13.157+00:00"
}