Security advisory

{
  "id": "884cc4900f79e51ffa347ca37b1fd3451aaa4d2f5b50389f06c647d129bc6b5e",
  "url": "https://osv.dev/vulnerability/CVE-2021-21427",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-21427",
    "summary": "Magento-lts is a long-term support alternative to Magento Community Edition (CE). A vulnerability in magento-lts versions before 19.4.13 and 20.0.9 potentially allows an administrator unauthorized access to restricted resources. This is a backport of CVE-2021-21024. The vulnerability is patched in versions 19.4.13 and 20.0.9.",
    "evidence": "osv:CVE-2021-21427",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-21427",
      "aliases": [
        "CVE-2021-21427",
        "GHSA-fvrf-9428-527m"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/openmage/magento-lts",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "f71321b37a782bd167ef56de0c6e18e67645685d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:openmage:magento:*:*:*:*:lts:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "19.4.13"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v19.4.12",
            "v19.4.11",
            "v19.4.10",
            "v19.4.9",
            "v19.4.8",
            "v19.4.7",
            "v19.4.6",
            "v19.4.5",
            "v19.4.4",
            "v19.4.3",
            "v19.4.2",
            "v19.4.1",
            "v19.4.0",
            "1.9.0.1",
            "1.9.1.1",
            "1.9.1.0-lts",
            "1.9.0.0",
            "1.8.1.0",
            "1.7.0.2",
            "1.7.0.1",
            "1.7.0.0",
            "1.6.1.0",
            "1.6.0.0",
            "1.6.0.0-rc2",
            "1.6.0.0-rc1",
            "1.6.0.0-beta1",
            "1.6.0.0-alpha1",
            "1.5.1.0",
            "1.5.0.1",
            "1.5.0.0",
            "1.5.0.0-rc2",
            "1.5.0.0-rc1",
            "1.5.0.0-beta2",
            "1.5.0.0-beta1",
            "1.5.0.0-alpha2",
            "1.5.0.0-alpha1",
            "1.4.2.0",
            "1.4.1.1",
            "1.4.1.0",
            "1.4.0.1",
            "1.3.2.4",
            "1.4.0.0",
            "1.4.0.0-rc1",
            "1.4.0.0-beta1",
            "1.4.0.0-alpha3",
            "1.4.0.0-alpha2",
            "1.4.0.0-alpha1",
            "1.3.2.3",
            "1.3.2.2",
            "1.3.2.1",
            "1.3.2",
            "1.3.1.1",
            "1.3.1",
            "1.3.0",
            "1.2.1.2",
            "1.2.1",
            "1.2.0.3",
            "1.2.0.2",
            "1.2.0.1",
            "1.2.0",
            "1.1.8",
            "1.1.7",
            "1.1.6",
            "1.1.5",
            "1.1.4",
            "1.1.3",
            "1.1.2",
            "1.1.1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21427.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:04.351279285Z",
      "provider": "osv",
      "references": [
        "https://github.com/OpenMage/magento-lts/security/advisories/GHSA-fvrf-9428-527m"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:openmage:magento:*:*:*:*:lts:*:*:*"
            ],
            "vendor_product": "openmage:magento",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "19.4.13"
                  },
                  {
                    "introduced": "20.0.0"
                  },
                  {
                    "fixed": "20.0.9"
                  },
                  {
                    "introduced": "20.0.0"
                  },
                  {
                    "fixed": "20.0.9"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-21427",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441927,
  "published_at": "2021-04-21T21:15:08.007+00:00"
}