Security advisory

{
  "id": "ecf4d19afdfb7ec32ae9d04f01a6f3dcbc12e0bf9494189fad15fe24d67576db",
  "url": "https://osv.dev/vulnerability/CVE-2020-8639",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-8639",
    "summary": "An unrestricted file upload vulnerability in keywordsImport.php in TestLink 1.9.20 allows remote attackers to execute arbitrary code by uploading a file with an executable extension. This allows an authenticated attacker to upload a malicious file (containing PHP code to execute operating system commands) to a publicly accessible directory of the application.",
    "evidence": "osv:CVE-2020-8639",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-8639",
      "aliases": [
        "CVE-2020-8639"
      ],
      "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/testlinkopensourcetrms/testlink-code",
              "type": "GIT",
              "events": [
                {
                  "introduced": "2f6a6f4dd0cd500258f0f4ddf0eeb3fd93714433"
                },
                {
                  "last_affected": "2f6a6f4dd0cd500258f0f4ddf0eeb3fd93714433"
                },
                {
                  "fixed": "57d81ae350d569c5c95087997fe051c49e14516d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:testlink:testlink:1.9.20:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "1.9.20"
                      },
                      {
                        "last_affected": "1.9.20"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "range": [
                      {
                        "fixed": "57d81ae350d569c5c95087997fe051c49e14516d"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.9.20"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-8639.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:25.584534301Z",
      "provider": "osv",
      "references": [
        "https://ackcent.com/blog/testlink-1.9.20-unrestricted-file-upload-and-sql-injection/",
        "https://github.com/TestLinkOpenSourceTRMS/testlink-code/commit/57d81ae350d569c5c95087997fe051c49e14516d"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-8639",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385346,
  "published_at": "2020-04-03T19:15:13.593+00:00"
}