CVE-2026-0671

{
  "id": "CVE-2026-0671",
  "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
  "published": "2026-01-08T17:15:50.240",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Improper Neutralization of Input During Web Page Generation (XSS or 'Cross-site Scripting') vulnerability in Wikimedia Foundation MediaWiki - UploadWizard extension allows Cross-Site Scripting (XSS).This issue affects MediaWiki - UploadWizard extension: 1.45, 1.44, 1.43, 1.39."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de Neutralización Incorrecta de la Entrada Durante la Generación de Páginas Web (XSS o ’cross-site scripting’) en la extensión Wikimedia Foundation MediaWiki - UploadWizard permite cross-site scripting (XSS). Este problema afecta a la extensión MediaWiki - UploadWizard: 1.45, 1.44, 1.43, 1.39."
    }
  ],
  "affected": [
    {
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "affectedData": [
        {
          "vendor": "Wikimedia Foundation",
          "product": "MediaWiki - UploadWizard extension",
          "defaultStatus": "unaffected",
          "repo": "https://gerrit.wikimedia.org/g/mediawiki/extensions/UploadWizard",
          "versions": [
            {
              "version": "1.45",
              "status": "affected"
            },
            {
              "version": "1.44",
              "status": "affected"
            },
            {
              "version": "1.43",
              "status": "affected"
            },
            {
              "version": "1.39",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
          "baseScore": 6.1,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 2.7
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-01-08T20:13:21.226518Z",
          "id": "CVE-2026-0671",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:wikimedia:mediawiki-extensions-uploadwizard:1.39:*:*:*:*:*:*:*",
              "matchCriteriaId": "E177CDD3-DB91-4A7B-9C1E-1CE45AC857BC"
            },
            {
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              "criteria": "cpe:2.3:a:wikimedia:mediawiki-extensions-uploadwizard:1.43:*:*:*:*:*:*:*",
              "matchCriteriaId": "360E8939-87FB-40A8-A07E-E3F5CC4A2AFC"
            },
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              "criteria": "cpe:2.3:a:wikimedia:mediawiki-extensions-uploadwizard:1.44:*:*:*:*:*:*:*",
              "matchCriteriaId": "1EBA4166-5A79-4636-8122-71A6DB43FE28"
            },
            {
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              "criteria": "cpe:2.3:a:wikimedia:mediawiki-extensions-uploadwizard:1.45:*:*:*:*:*:*:*",
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  ],
  "references": [
    {
      "url": "https://gerrit.wikimedia.org/r/q/I16de2211594ea9a686868ad7789f9879bf981fa1",
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "tags": [
        "Patch"
      ]
    },
    {
      "url": "https://phabricator.wikimedia.org/T407157",
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "tags": [
        "Exploit",
        "Issue Tracking",
        "Vendor Advisory"
      ]
    }
  ]
}