Security advisory

{
  "id": "856be30ee5ac9e7348c72d3fd6e04705025e8d0cb8a3bf70beb5a4366c196e63",
  "url": "https://osv.dev/vulnerability/CVE-2020-15145",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2020-15145",
    "summary": "In Composer-Setup for Windows before version 6.0.0, if the developer's computer is shared with other users, a local attacker may be able to exploit the following scenarios. 1. A local regular user may modify the existing `C:\\ProgramData\\ComposerSetup\\bin\\composer.bat` in order to get elevated command execution when composer is run by an administrator. 2. A local regular user may create a specially crafted dll in the `C:\\ProgramData\\ComposerSetup\\bin` folder in order to get Local System privileges. See: https://itm4n.github.io/windows-server-netman-dll-hijacking. 3. If the directory of the php.exe selected by the user is not in the system path, it is added without checking that it is admin secured, as per Microsoft guidelines. See: https://msrc-blog.microsoft.com/2018/04/04/triaging-a-dll-planting-vulnerability.",
    "evidence": "osv:CVE-2020-15145",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2020-15145",
      "aliases": [
        "CVE-2020-15145",
        "GHSA-wgrx-r3qv-332c"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/composer/windows-setup",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "d5c8ad0500be931a7b7d86d40d78da25a0fba5aa"
                },
                {
                  "fixed": "ca9f1435d368e3377e82d60ef0c7b795afa9f804"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:getcomposer:composer-setup:*:*:*:*:*:windows:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "6.0.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "ca9f1435d368e3377e82d60ef0c7b795afa9f804"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v5.1.0",
            "v5.0.0",
            "v4.10.0",
            "v4.9.0",
            "v4.8.0",
            "v4.7.0",
            "v4.6.0",
            "v4.5.0",
            "v4.4.0",
            "v4.3.0",
            "v4.2.0",
            "v4.1.0",
            "v3.0",
            "v2.8",
            "v2.7",
            "v2.6",
            "v2.5",
            "v2.4",
            "v2.3",
            "v2.2",
            "v2.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-15145.json"
          }
        }
      ],
      "modified": "2026-10-20T10:51:52.622134925Z",
      "provider": "osv",
      "references": [
        "https://github.com/composer/windows-setup/security/advisories/GHSA-wgrx-r3qv-332c",
        "https://github.com/composer/windows-setup/commit/ca9f1435d368e3377e82d60ef0c7b795afa9f804"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2020-15145",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 383065,
  "published_at": "2020-08-14T17:15:14.377+00:00"
}