Security advisory

{
  "id": "d2425c239fab5f7f2f9c8ecd2efcab4e48e2999ed2062a47abc7b64a94d57771",
  "url": "https://osv.dev/vulnerability/CVE-2021-41560",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-41560",
    "summary": "OpenCATS through 0.9.6 allows remote attackers to execute arbitrary code by uploading an executable file via lib/FileUtility.php.",
    "evidence": "osv:CVE-2021-41560",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2021-41560",
      "aliases": [
        "CVE-2021-41560"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/opencats/opencats",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "2764566bcb37ebde9e87f9106e9defed3d7d7c0c"
                },
                {
                  "fixed": "b1af3bde1f68bec1c703ad66a3e390f15ed8ebe1"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:opencats:opencats:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.9.6"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b1af3bde1f68bec1c703ad66a3e390f15ed8ebe1"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.9.6",
            "0.9.4-3",
            "0.9.4-2",
            "0.9.4-1",
            "0.9.4",
            "0.9.3-3",
            "0.9.3-2",
            "0.9.3-1",
            "0.9.1a",
            "opencats-0.9.3(final)",
            "opencats-0.9.3(alpha)",
            "opencats-0.9.3",
            "0.9.3"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-41560.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:58.562734724Z",
      "provider": "osv",
      "references": [
        "https://youtu.be/isiDISag7CM",
        "https://github.com/Nickguitar/RevCAT",
        "https://github.com/opencats/OpenCATS/commit/b1af3bde1f68bec1c703ad66a3e390f15ed8ebe1"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-41560",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 386606,
  "published_at": "2021-12-15T07:15:07.317+00:00"
}