{
  "id": "CVE-2021-44858",
  "sourceIdentifier": "cve@mitre.org",
  "published": "2021-12-20T09:15:06.770",
  "lastModified": "2021-12-29T18:18:38.500",
  "vulnStatus": "Analyzed",
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in MediaWiki before 1.35.5, 1.36.x before 1.36.3, and 1.37.x before 1.37.1. It is possible to use action=edit&undo= followed by action=mcrundo and action=mcrrestore to view private pages on a private wiki that has at least one page set in $wgWhitelistRead."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en MediaWiki versiones anteriores a 1.35.5, 1.36.x versiones anteriores a 1.36.3 y 1.37.x versiones anteriores a 1.37.1. Es posible usar action=edit&undo= seguido de action=mcrundo y action=mcrrestore para visualizar p\u00e1ginas privadas en un wiki privado que presenta al menos una p\u00e1gina establecida en $wgWhitelistRead"
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      }
    ],
    "cvssMetricV2": [
      {
        "source": "nvd@nist.gov",
        "type": "Primary",
        "cvssData": {
          "version": "2.0",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "accessVector": "NETWORK",
          "accessComplexity": "LOW",
          "authentication": "NONE",
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE",
          "baseScore": 5.0
        },
        "baseSeverity": "MEDIUM",
        "exploitabilityScore": 10.0,
        "impactScore": 2.9,
        "acInsufInfo": false,
        "obtainAllPrivilege": false,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "weaknesses": [
    {
      "source": "nvd@nist.gov",
      "type": "Primary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-276"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "1.35.5",
              "matchCriteriaId": "99942EE7-37A1-42CD-B392-8ED9362430E2"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.36.0",
              "versionEndExcluding": "1.36.3",
              "matchCriteriaId": "7377A8D6-3B2E-4FD6-820A-4CD632158111"
            },
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:*:*:*:*:*:*:*:*",
              "versionStartIncluding": "1.37.0",
              "versionEndExcluding": "1.37.1",
              "matchCriteriaId": "5950CA7B-C437-4162-A8C5-5F31625145A8"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://phabricator.wikimedia.org/T297322",
      "source": "cve@mitre.org",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ]
    },
    {
      "url": "https://www.mediawiki.org/wiki/2021-12_security_release/FAQ",
      "source": "cve@mitre.org",
      "tags": [
        "Mitigation",
        "Vendor Advisory"
      ]
    }
  ]
}