{
  "id": "CVE-2021-20187",
  "sourceIdentifier": "secalert@redhat.com",
  "published": "2021-01-28T19:15:13.377",
  "lastModified": "2022-10-21T20:09:46.700",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "It was found in Moodle before version 3.10.1, 3.9.4, 3.8.7 and 3.5.16 that it was possible for site administrators to execute arbitrary PHP scripts via a PHP include used during Shibboleth authentication."
    },
    {
      "lang": "es",
      "value": "Se encontr\u00f3 en Moodle versiones anteriores a 3.10.1, 3.9.4, 3.8.7 y 3.5.16, que era posible para los administradores del sitio ejecutar scripts PHP arbitrarios por medio de una inclusi\u00f3n PHP usada durante la autenticaci\u00f3n Shibboleth"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "HIGH",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH",
          "baseScore": 7.2,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.9
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "SINGLE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-829"
        }
      ]
    },
    {
      "source": "secalert@redhat.com",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "3.5.16",
              "matchCriteriaId": "0B9E3D3B-E8BB-458B-B7FC-D490CAFEEA1F"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "3.8.0",
              "versionEndExcluding": "3.8.7",
              "matchCriteriaId": "4C0C5BDE-B2B5-4DE7-BDE0-831F3B56A9CC"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:moodle:moodle:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "3.9.0",
              "versionEndExcluding": "3.9.4",
              "matchCriteriaId": "47B9548F-912D-4D36-BE31-566EF2812EEA"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:moodle:moodle:3.10.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "7B9E83AE-D857-4F96-9466-1361E116D160"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://moodle.org/mod/forum/discuss.php?d=417171",
      "source": "secalert@redhat.com",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    }
  ]
}