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CVE-2020-29007

Estado: ModificadaCrítica (9.8)—💥 PoC

The Score extension through 0.3.0 for MediaWiki has a remote code execution vulnerability due to improper sandboxing of the GNU LilyPond executable. This allows any user with an ability to edit articles (potentially including unauthenticated anonymous users) to execute arbitrary Scheme or shell code by using crafted {{Image data to generate musical scores containing malicious code.

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).

💥 Exploits públicos

Hay código de explotación o plantillas de detección públicos. No es lo mismo que explotación activa confirmada (KEV), pero aumenta el riesgo: parchee con prioridad.

⚠️ Las pruebas de concepto de GitHub no están verificadas: algunas son falsas o contienen malware. No las ejecute nunca fuera de un laboratorio aislado.

Tecnologías afectadas (1)

Mediawiki — Score

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-29007",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2020-29007",
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          "options": [
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              "exploitation": "poc"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "total"
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          ],
          "version": "2.0.3",
          "timestamp": "2025-02-06T16:17:15.250561Z"
        }
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          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
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          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
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  "published": "2023-04-15T22:15:06.977",
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  ],
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
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      "lang": "en",
      "value": "The Score extension through 0.3.0 for MediaWiki has a remote code execution vulnerability due to improper sandboxing of the GNU LilyPond executable. This allows any user with an ability to edit articles (potentially including unauthenticated anonymous users) to execute arbitrary Scheme or shell code by using crafted {{Image data to generate musical scores containing malicious code."
    }
  ],
  "lastModified": "2026-06-17T03:10:58.197",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:mediawiki:score:*:*:*:*:*:mediawiki:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AECAEC22-ACEF-4E9F-9C22-4D839DB328A9",
              "versionEndIncluding": "0.3.0"
            }
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  ],
  "sourceIdentifier": "cve@mitre.org"
}