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CVE-2025-53480

Estado: AplazadaMedia (5.4)—

The CheckUser extension’s Special:Investigate page has a vulnerability in the Account information tab, where specific internationalized messages are rendered without proper escaping. Attackers can exploit this by appending ?uselang=x-xss to the URL, causing reflected XSS when the UI renders affected message keys.

This issue affects Mediawiki - CheckUser extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2.

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)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Mediawiki — CheckuserAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2025-53480",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-53480",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-07-08T20:44:35.609306Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 5.4,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.7,
        "exploitabilityScore": 2.3
      }
    ]
  },
  "affected": [
    {
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "affectedData": [
        {
          "vendor": "Wikimedia Foundation",
          "product": "Mediawiki - CheckUser extension",
          "versions": [
            {
              "status": "affected",
              "version": "1.39.x",
              "lessThan": "1.39.13",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "1.42.x",
              "lessThan": "1.42.7",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "1.43.x",
              "lessThan": "1.43.2",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-07-08T15:15:29.720",
  "references": [
    {
      "url": "https://gerrit.wikimedia.org/r/q/I777fc55fef15c3b00df0db268af2b64cb2d6e381",
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"
    },
    {
      "url": "https://phabricator.wikimedia.org/T394700",
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The CheckUser extension’s Special:Investigate page has a vulnerability in the Account information tab, where specific internationalized messages are rendered without proper escaping. Attackers can exploit this by appending ?uselang=x-xss to the URL, causing reflected XSS when the UI renders affected message keys.\n\n\n\n\nThis issue affects Mediawiki - CheckUser extension: from 1.39.X before 1.39.13, from 1.42.X before 1.42.7, from 1.43.X before 1.43.2."
    },
    {
      "lang": "es",
      "value": "La página \"Especial:Investigar\" de la extensión CheckUser presenta una vulnerabilidad en la pestaña \"Información de la cuenta\", donde se muestran mensajes internacionalizados específicos sin el escape adecuado. Los atacantes pueden explotar esto añadiendo \"?uselang=x-xss\" a la URL, lo que provoca un XSS reflejado cuando la interfaz de usuario muestra las claves de los mensajes afectados. Este problema afecta a Mediawiki - extensión CheckUser: desde la versión 1.39.X hasta la 1.39.13, desde la versión 1.42.X hasta la 1.42.7, desde la versión 1.43.X hasta la 1.43.2."
    }
  ],
  "lastModified": "2026-06-17T09:38:17.197",
  "sourceIdentifier": "c4f26cc8-17ff-4c99-b5e2-38fc1793eacc"
}