Security advisory

{
  "id": "3a855c480179230a71a7f9bf708cee54e9e03b0214ca8aab9504e95d3fb6dd92",
  "url": "https://osv.dev/vulnerability/CVE-2020-21564",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-21564",
    "summary": "An issue was discovered in Pluck CMS 4.7.10-dev2 and 4.7.11. There is a file upload vulnerability that can cause a remote command execution via admin.php?action=files.",
    "evidence": "osv:CVE-2020-21564",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-21564",
      "aliases": [
        "CVE-2020-21564"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/pluck-cms/pluck",
              "type": "GIT",
              "events": [
                {
                  "introduced": "093a8f57b00d93b03aef8e653966302a94d833f8"
                },
                {
                  "last_affected": "f840addae488de3fae562e74ac8ff377e1b4b7fc"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:pluck-cms:pluck:4.7.10:dev2:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.7.10-dev2"
                      },
                      {
                        "last_affected": "4.7.10-dev2"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:pluck-cms:pluck:4.7.11:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.7.11"
                      },
                      {
                        "last_affected": "4.7.11"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.7.10-dev2",
            "4.7.11",
            "4.7.11-dev2",
            "4.7.11-dev1",
            "4.7.10-dev5",
            "4.7.10-dev4",
            "4.7.10-dev3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-21564.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:11.486767827Z",
      "provider": "osv",
      "references": [
        "https://github.com/pluck-cms/pluck/issues/91",
        "https://github.com/pluck-cms/pluck/issues/83"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-21564",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383446,
  "published_at": "2020-09-30T18:15:24.303+00:00"
}