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CVE-2016-6334

Estado: ModificadaMedia (6.1)—

Vulnerabilidad de XSS en el método de Parser::replaceInternalLinks2 en MediaWiki en versiones anterior a 1.23.15, 1.26.x en versiones anterior a 1.26.4, y 1.27.x en versiones anterior a 1.27.1 permite a atacantes remotos inyectar secuencias de comandos web o HTML arbitrarios a través de vectores incluyendo el reemplazo de porcentaje de codificación en enlaces internos no cerrados.

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)

Mediawiki — Mediawiki

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2016-6334",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.0",
          "baseScore": 6.1,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "secalert@redhat.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2017-04-20T17:59:00.663",
  "references": [
    {
      "url": "http://www.securityfocus.com/bid/98057",
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1369613",
      "tags": [
        "Issue Tracking"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html",
      "tags": [
        "Mailing List",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "https://phabricator.wikimedia.org/T137264",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "secalert@redhat.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/98057",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1369613",
      "tags": [
        "Issue Tracking"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://lists.wikimedia.org/pipermail/mediawiki-announce/2016-August/000195.html",
      "tags": [
        "Mailing List",
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://phabricator.wikimedia.org/T137264",
      "tags": [
        "Patch",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cross-site scripting (XSS) vulnerability in the Parser::replaceInternalLinks2 method in MediaWiki before 1.23.15, 1.26.x before 1.26.4, and 1.27.x before 1.27.1 allows remote attackers to inject arbitrary web script or HTML via vectors involving replacement of percent encoding in unclosed internal links."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de XSS en el método de Parser::replaceInternalLinks2 en MediaWiki en versiones anterior a 1.23.15, 1.26.x en versiones anterior a 1.26.4, y 1.27.x en versiones anterior a 1.27.1 permite a atacantes remotos inyectar secuencias de comandos web o HTML arbitrarios a través de vectores incluyendo el reemplazo de porcentaje de codificación en enlaces internos no cerrados."
    }
  ],
  "lastModified": "2026-06-17T00:50:50.823",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
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              "vulnerable": true,
              "matchCriteriaId": "F26807BC-B2F2-480D-B5B1-C2D64933A0C8",
              "versionEndIncluding": "1.23.14"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.26.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7B418525-DAC2-461A-B931-BED05CC3AFBF"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.26.1:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8C238723-5592-4F0F-869D-91B64DD14FBF"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.26.2:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "22685E70-3EE0-484B-8A4C-139C28BDD2B1"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.26.3:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3BD0A725-B06B-456D-8A8B-9DA5468935FA"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.26.4:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7ED98FFC-4397-4F27-AC36-BB7A42A92F89"
            },
            {
              "criteria": "cpe:2.3:a:mediawiki:mediawiki:1.27.0:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F75E06F7-6D23-4BEB-80B4-3DE33193CA95"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "secalert@redhat.com"
}