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Security advisory

Type: advisorySources: OSVCVE: CVE-2021-36021

Magento versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an Improper input validation vulnerability within the CMS page scheduled update feature. An authenticated attacker with administrative privilege could leverage this vulnerability to achieve remote code execution on the system.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2021-36021
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 08:03 UTC · Revision 1

Source evidence

CVE-2021-36021

core-osv · Original source

Published 6 Sept 2023, 14:15 UTC

Magento versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an Improper input validation vulnerability within the CMS page scheduled update feature. An authenticated attacker with administrative privilege could leverage this vulnerability to achieve remote code execution on the system.

osv:CVE-2021-36021
Complete source record
{
  "id": "92fc93b77d24b591ea101b11501134dfec4b596a04ee90e8b954f396cab9046a",
  "url": "https://osv.dev/vulnerability/CVE-2021-36021",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-36021",
    "summary": "Magento versions 2.4.2 (and earlier), 2.4.2-p1 (and earlier) and 2.3.7 (and earlier) are affected by an Improper input validation vulnerability within the CMS page scheduled update feature. An authenticated attacker with administrative privilege could leverage this vulnerability to achieve remote code execution on the system.",
    "evidence": "osv:CVE-2021-36021",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-36021",
      "aliases": [
        "BIT-magento-2021-36021",
        "CVE-2021-36021",
        "GHSA-4g27-q2w9-m8m8"
      ],
      "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/magento/devdocs",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "9eba2c99bed83d8297c03b7ea3b110500cc5b955"
                },
                {
                  "introduced": "9eba2c99bed83d8297c03b7ea3b110500cc5b955"
                },
                {
                  "last_affected": "9eba2c99bed83d8297c03b7ea3b110500cc5b955"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.0"
                      },
                      {
                        "fixed": "2.4.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.0"
                      },
                      {
                        "fixed": "2.4.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:2.4.2:-:*:*:commerce:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.2-NA"
                      },
                      {
                        "last_affected": "2.4.2-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:2.4.2:-:*:*:open_source:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.2-NA"
                      },
                      {
                        "last_affected": "2.4.2-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.4.2-NA",
            "2.3.0",
            "2.2.7",
            "2.1.16",
            "1.x-eos",
            "2.3.5",
            "2.3.4",
            "2.3.3-p1",
            "2.2.11",
            "2.3.2",
            "2.2.9",
            "2.1.18",
            "2.3.1",
            "2.2.8",
            "2.1.17",
            "2.2.6",
            "2.1.15",
            "2.2.5",
            "2.1.14",
            "2.0.8"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36021.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/magento/magento2",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "44a7b6079bcac5ba92040b16f4f74024b4f34d09"
                },
                {
                  "introduced": "6729b6e01368248abc33300208eb292c95050203"
                },
                {
                  "fixed": "33242e4b19cf207d7b73f7791ef894b48bb41f8a"
                },
                {
                  "introduced": "44a7b6079bcac5ba92040b16f4f74024b4f34d09"
                },
                {
                  "last_affected": "1bd5cb8c065e44779526c0b044ce19b884707695"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.3.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2.3.7"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.0"
                      },
                      {
                        "fixed": "2.4.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.0"
                      },
                      {
                        "fixed": "2.4.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:2.3.7:-:*:*:commerce:*:*:*",
                    "range": [
                      {
                        "introduced": "2.3.7-NA"
                      },
                      {
                        "last_affected": "2.3.7-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:2.3.7:-:*:*:open_source:*:*:*",
                    "range": [
                      {
                        "introduced": "2.3.7-NA"
                      },
                      {
                        "last_affected": "2.3.7-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:2.4.2:-:*:*:commerce:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.2-NA"
                      },
                      {
                        "last_affected": "2.4.2-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:2.4.2:-:*:*:open_source:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.2-NA"
                      },
                      {
                        "last_affected": "2.4.2-NA"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:2.4.2:p1:*:*:commerce:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.2-p1"
                      },
                      {
                        "last_affected": "2.4.2-p1"
                      }
                    ],
                    "source": "CPE_STRING"
                  },
                  {
                    "cpe": "cpe:2.3:a:magento:magento:2.4.2:p1:*:*:open_source:*:*:*",
                    "range": [
                      {
                        "introduced": "2.4.2-p1"
                      },
                      {
                        "last_affected": "2.4.2-p1"
                      }
                    ],
                    "source": "CPE_STRING"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2.3.7-NA",
            "2.4.2-NA",
            "2.4.2-p1",
            "2.2.0-RC1.3",
            "2.2.0-RC1.2",
            "2.2.0-RC1.1",
            "2.1.0",
            "2.1.0-rc3",
            "2.1.0-rc2",
            "2.1.0-rc1",
            "2.0.0",
            "2.0.0-rc",
            "0.74.0-beta1",
            "0.42.0-beta3",
            "0.1.0-alpha108",
            "0.42.0-beta1",
            "0.1.0-alpha107",
            "0.1.0-alpha106",
            "0.1.0-alpha105",
            "0.1.0-alpha104",
            "0.1.0-alpha103",
            "0.1.0-alpha102",
            "0.1.0-alpha101",
            "0.1.0-alpha100",
            "0.1.0-alpha99",
            "0.1.0-alpha98",
            "0.1.0-alpha97",
            "0.1.0-alpha96",
            "0.1.0-alpha95",
            "0.1.0-alpha94",
            "0.1.0-alpha93",
            "0.1.0-alpha92",
            "0.1.0-alpha91",
            "0.1.0-alpha90",
            "0.1.0-alpha89"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-36021.json"
          }
        }
      ],
      "modified": "2026-10-24T10:31:02.191206668Z",
      "provider": "osv",
      "references": [
        "https://helpx.adobe.com/security/products/magento/apsb21-64.html"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:magento:magento:*:*:*:*:commerce:*:*:*",
              "cpe:2.3:a:magento:magento:*:*:*:*:open_source:*:*:*"
            ],
            "vendor_product": "magento:magento",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "2.3.7"
                  },
                  {
                    "fixed": "2.3.7"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          },
          {
            "cpes": [
              "cpe:2.3:a:magento:magento:2.3.7:-:*:*:commerce:*:*:*",
              "cpe:2.3:a:magento:magento:2.3.7:-:*:*:open_source:*:*:*",
              "cpe:2.3:a:magento:magento:2.4.2:p1:*:*:commerce:*:*:*",
              "cpe:2.3:a:magento:magento:2.4.2:p1:*:*:open_source:*:*:*"
            ],
            "vendor_product": "magento:magento",
            "extracted_events": [
              {
                "range": [
                  {
                    "introduced": "2.3.7-NA"
                  },
                  {
                    "last_affected": "2.3.7-NA"
                  },
                  {
                    "introduced": "2.3.7-NA"
                  },
                  {
                    "last_affected": "2.3.7-NA"
                  },
                  {
                    "introduced": "2.4.2-p1"
                  },
                  {
                    "last_affected": "2.4.2-p1"
                  },
                  {
                    "introduced": "2.4.2-p1"
                  },
                  {
                    "last_affected": "2.4.2-p1"
                  }
                ],
                "source": "CPE_STRING"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2021-36021",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 439967,
  "published_at": "2023-09-06T14:15:08.767+00:00"
}