Security advisory

{
  "id": "cbfd03b6ffd858acf283d1f105c2638f4c01fe8ddc15feae393f59dbfe090e4f",
  "url": "https://osv.dev/vulnerability/CVE-2020-12103",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-12103",
    "summary": "In Tiny File Manager 2.4.1 there is a vulnerability in the ajax file backup copy functionality which allows authenticated users to create backup copies of files (with .bak extension) outside the scope in the same directory in which they are stored.",
    "evidence": "osv:CVE-2020-12103",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-12103",
      "aliases": [
        "CVE-2020-12103"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/prasathmani/tinyfilemanager",
              "type": "GIT",
              "events": [
                {
                  "introduced": "9e3877270b72e23f9834d824147063865d814b7b"
                },
                {
                  "last_affected": "9e3877270b72e23f9834d824147063865d814b7b"
                },
                {
                  "fixed": "a0c595a8e11e55a43eeaa68e1a3ce76365f29d06"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:prasathmani:tiny_file_manager:2.4.1:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.1"
                      },
                      {
                        "last_affected": "2.4.1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "a0c595a8e11e55a43eeaa68e1a3ce76365f29d06"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.4.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-12103.json"
          }
        }
      ],
      "modified": "2026-10-20T10:52:46.868975282Z",
      "provider": "osv",
      "references": [
        "https://cyberaz0r.info/2020/04/tiny-file-manager-multiple-vulnerabilities/",
        "https://github.com/prasathmani/tinyfilemanager/issues/357",
        "https://github.com/prasathmani/tinyfilemanager/commit/a0c595a8e11e55a43eeaa68e1a3ce76365f29d06"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-12103",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383814,
  "published_at": "2020-04-28T22:15:12.78+00:00"
}