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CVE-2026-73650

Estado: AplazadaAlta (8.2)—

SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 1.0.0 until versions 2.8.3, 3.3.4, and 4.0.2, the removeScripts plugin, named removeScriptElement in versions 1 through 3, can leave executable content in optimized SVGs because it does not remove namespaced or prefixed script elements such as <svg:script> and, in versions 3 and 4, matches JavaScript URIs case sensitively. Applications that process untrusted SVG input with this plugin enabled and serve the result can allow scripts to execute when another user opens the SVG, exposing local storage or cookies. This issue is fixed in versions 2.8.3, 3.3.4, and 4.0.2.

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).

🎯 Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

XSS a través de SVG con scripts no removidos (svg:script, case-sensitive). Ataque drive-by que ejecuta JavaScript en navegador del usuario, accediendo a localStorage/cookies.

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

🛡️ Mitigaciones ATT&CK que cubren estas técnicas

Restrict Web-Based ContentUser TrainingExecution PreventionBehavior Prevention on EndpointDisable or Remove Feature or ProgramApplication Isolation and Sandboxing

Tecnologías afectadas (1)

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

Svgo — SvgoAI

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-73650",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-73650",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2026-08-18T01:31:35.954971Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "security-advisories@github.com",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.2,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 4.7,
        "exploitabilityScore": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "security-advisories@github.com",
      "affectedData": [
        {
          "vendor": "svg",
          "product": "svgo",
          "versions": [
            {
              "status": "affected",
              "version": ">= 1.0.0, < 2.8.3"
            },
            {
              "status": "affected",
              "version": ">= 3.0.0, < 3.3.4"
            },
            {
              "status": "affected",
              "version": ">= 4.0.0, < 4.0.2"
            }
          ]
        }
      ]
    }
  ],
  "published": "2026-08-13T19:17:38.460",
  "references": [
    {
      "url": "https://github.com/svg/svgo/commit/628e3bc7336625a30365d0a9b60185307d852466",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/svg/svgo/commit/72a23886b4698b27624b936f3a15a80afd36d75f",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/svg/svgo/commit/f529cfccc6c154d6f6eabe276ec637a8c5db6763",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/svg/svgo/releases/tag/v2.8.3",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/svg/svgo/releases/tag/v3.3.4",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/svg/svgo/releases/tag/v4.0.2",
      "source": "security-advisories@github.com"
    },
    {
      "url": "https://github.com/svg/svgo/security/advisories/GHSA-2p49-hgcm-8545",
      "source": "security-advisories@github.com"
    }
  ],
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "security-advisories@github.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        },
        {
          "lang": "en",
          "value": "CWE-184"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "SVGO, short for SVG Optimizer, is a Node.js library and command-line application for optimizing SVG files. From version 1.0.0 until versions 2.8.3, 3.3.4, and 4.0.2, the removeScripts plugin, named removeScriptElement in versions 1 through 3, can leave executable content in optimized SVGs because it does not remove namespaced or prefixed script elements such as <svg:script> and, in versions 3 and 4, matches JavaScript URIs case sensitively. Applications that process untrusted SVG input with this plugin enabled and serve the result can allow scripts to execute when another user opens the SVG, exposing local storage or cookies. This issue is fixed in versions 2.8.3, 3.3.4, and 4.0.2."
    }
  ],
  "lastModified": "2026-09-18T20:09:01.757",
  "sourceIdentifier": "security-advisories@github.com"
}