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CVE-2021-24155

Estado: ModificadaAlta (7.2)—

The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE.

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Backup-guard — Backup Guard

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-24155",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "HIGH",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.2
      }
    ]
  },
  "affected": [
    {
      "source": "contact@wpscan.com",
      "affectedData": [
        {
          "vendor": "Unknown",
          "product": "WordPress Backup and Migrate Plugin – Backup Guard",
          "versions": [
            {
              "status": "affected",
              "version": "1.6.0",
              "lessThan": "1.6.0",
              "versionType": "custom"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-05T19:15:14.700",
  "references": [
    {
      "url": "http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "contact@wpscan.com"
    },
    {
      "url": "http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "contact@wpscan.com"
    },
    {
      "url": "https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "contact@wpscan.com"
    },
    {
      "url": "http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://packetstormsecurity.com/files/163623/WordPress-Backup-Guard-Authenticated-Remote-Code-Execution.html",
      "tags": [
        "Exploit",
        "Third Party Advisory",
        "VDB Entry"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "contact@wpscan.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    },
    {
      "type": "Secondary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The WordPress Backup and Migrate Plugin – Backup Guard WordPress plugin before 1.6.0 did not ensure that the imported files are of the SGBP format and extension, allowing high privilege users (admin+) to upload arbitrary files, including PHP ones, leading to RCE."
    },
    {
      "lang": "es",
      "value": "El plugin WordPress Backup and Migrate - Backup Guard WordPress antes de la versión 1.6.0 no garantizaba que los archivos importados tuvieran el formato y la extensión SGBP, lo que permitía a los usuarios con altos privilegios (admin+) subir archivos arbitrarios, incluidos los de PHP, lo que provocaba un RCE"
    }
  ],
  "lastModified": "2026-06-17T03:39:29.257",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:backup-guard:backup_guard:*:*:*:*:*:wordpress:*:*",
              "vulnerable": true,
              "matchCriteriaId": "75678C98-2584-4870-9CE6-F8529BC491EE",
              "versionEndExcluding": "1.6.0"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "contact@wpscan.com"
}