CVE-2026-40301

{
  "id": "CVE-2026-40301",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-17T21:16:34.850",
  "lastModified": "2026-10-26T21:10:00.170",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "DOMSanitizer is a DOM/SVG/MathML Sanitizer for PHP 7.3+. Prior to version 1.0.10, DOMSanitizer::sanitize() allows <style> elements in SVG content but never inspects their text content. CSS url() references and @import rules pass through unfiltered, causing the browser to issue HTTP requests to attacker-controlled hosts when the sanitized SVG is rendered. Version 1.0.10 fixes the issue."
    },
    {
      "lang": "es",
      "value": "DOMSanitizer es un saneador de DOM/SVG/MathML para PHP 7.3+. Antes de la versión 1.0.10, DOMSanitizer::sanitize() permite elementos [style] en contenido SVG pero nunca inspecciona su contenido de texto. Las referencias CSS url() y las reglas @import pasan sin filtrar, lo que hace que el navegador emita solicitudes HTTP a hosts controlados por el atacante cuando se renderiza el SVG saneado. La versión 1.0.10 soluciona el problema."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "rhukster",
          "product": "dom-sanitizer",
          "versions": [
            {
              "version": "< 1.0.10",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-04-20T14:42:31.756128Z",
          "id": "CVE-2026-40301",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/rhukster/dom-sanitizer/commit/49a98046b708a4c92f754f5b0ef1720bb85142e2",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rhukster/dom-sanitizer/releases/tag/1.0.10",
      "source": "[email protected]"
    },
    {
      "url": "https://github.com/rhukster/dom-sanitizer/security/advisories/GHSA-93vf-569f-22cq",
      "source": "[email protected]"
    }
  ]
}