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CVE-2018-7556

Estado: ModificadaCrítica (9.1)—

LimeSurvey 2.6.x before 2.6.7, 2.7x.x before 2.73.1, and 3.x before 3.4.2 mishandles application/controller/InstallerController.php after installation, which allows remote attackers to access the configuration file.

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 (2)

Debian — Debian LinuxLimesurvey — Limesurvey

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2018-7556",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.4,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": true,
        "impactScore": 4.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.1,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.2,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2018-02-28T07:29:00.400",
  "references": [
    {
      "url": "https://www.limesurvey.org/about-us/news/2075-limesurvey-security-advisory-02-2018",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.limesurvey.org/about-us/news/2075-limesurvey-security-advisory-02-2018",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-200"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "LimeSurvey 2.6.x before 2.6.7, 2.7x.x before 2.73.1, and 3.x before 3.4.2 mishandles application/controller/InstallerController.php after installation, which allows remote attackers to access the configuration file."
    },
    {
      "lang": "es",
      "value": "LimeSurvey, en versiones 2.6.x anteriores a la 2.6.7; versiones 2.7x.x anteriores a la 2.73.1 y versiones 3.x anteriores a la 3.4.2, gestiona de manera incorrecta application/controller/InstallerController.php tras la instalación. Esto permite que atacantes remotos accedan al archivo de configuración."
    }
  ],
  "lastModified": "2026-06-17T02:03:21.953",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:limesurvey:limesurvey:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "85AB9BB0-F547-4E45-A917-1E70F0AC0D63",
              "versionEndExcluding": "2.6.7",
              "versionStartIncluding": "2.6.0"
            },
            {
              "criteria": "cpe:2.3:a:limesurvey:limesurvey:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D93AD3C1-1AAB-4C2A-B5B7-0765B3BAA9C1",
              "versionEndExcluding": "2.73.1",
              "versionStartIncluding": "2.7.0"
            },
            {
              "criteria": "cpe:2.3:a:limesurvey:limesurvey:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BAA4A599-3901-4B7B-80C7-4798E9663B17",
              "versionEndExcluding": "3.4.2",
              "versionStartIncluding": "3.0.0"
            }
          ],
          "operator": "OR"
        }
      ]
    },
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "16F59A04-14CF-49E2-9973-645477EA09DA"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}