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CVE-2013-3631

Status: ModifiedMedium (6)—💥 Exploit

NAS4Free 9.1.0.1.804 and earlier allows remote authenticated users to execute arbitrary PHP code via a request to exec.php, aka the "Advanced | Execute Command" feature. NOTE: this issue might not be a vulnerability, since it appears to be part of legitimate, intentionally-exposed functionality by the developer and is allowed within the intended security policy.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

💥 Public exploits

Exploit code or detection templates are publicly available. This is not the same as confirmed active exploitation (KEV), but it raises the risk: patch with priority.

Affected technologies (1)

Nas4free — Nas4free

CWEs

References

Raw JSON (NVD)

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{
  "id": "CVE-2013-3631",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:S/C:P/I:P/A:P",
          "authentication": "SINGLE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 6.8,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "cret@cert.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2013-11-02T19:55:04.540",
  "references": [
    {
      "url": "http://www.kb.cert.org/vuls/id/326830",
      "tags": [
        "US Government Resource"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "https://community.rapid7.com/community/metasploit/blog/2013/10/30/seven-tricks-and-treats",
      "tags": [
        "Exploit"
      ],
      "source": "cret@cert.org"
    },
    {
      "url": "http://www.kb.cert.org/vuls/id/326830",
      "tags": [
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://community.rapid7.com/community/metasploit/blog/2013/10/30/seven-tricks-and-treats",
      "tags": [
        "Exploit"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "NAS4Free 9.1.0.1.804 and earlier allows remote authenticated users to execute arbitrary PHP code via a request to exec.php, aka the \"Advanced | Execute Command\" feature.  NOTE: this issue might not be a vulnerability, since it appears to be part of legitimate, intentionally-exposed functionality by the developer and is allowed within the intended security policy."
    },
    {
      "lang": "es",
      "value": "NAS4Free 9.1.0.1.804 y anteriores permite a usuarios remotos autenticados ejecutar código PHP arbitrario a través de una solicitud de exec.php, también conocido como característica \"Advanced | Execute Command\". NOTA: este problema puede que no sea una vulnerabilidad, ya que parece ser parte de la funcionalidad legítima, es intencionalmente expuesta por el desarrollador y esta permitida con la intención de política de seguridad."
    }
  ],
  "lastModified": "2026-06-16T23:55:32.510",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:nas4free:nas4free:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "9E8E1DD2-0D21-4C89-BC67-9204868E4E82",
              "versionEndIncluding": "9.1.0.1.804"
            },
            {
              "criteria": "cpe:2.3:a:nas4free:nas4free:9.1.0.1.798:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8B60C783-E8E7-4633-91F2-BB69537FFF1F"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cret@cert.org"
}