darylldoyle svg-sanitizer before 1.0.0 CSS Injection and Remote Reference Bypass

{
  "id": "ec8688f5f068c73868019d50d9a9644f94f9c3b3c49fa010bd67148c0854bfd4",
  "url": "https://www.cve.org/CVERecord?id=CVE-2026-117539",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "darylldoyle svg-sanitizer before 1.0.0 CSS Injection and Remote Reference Bypass",
    "summary": "darylldoyle svg-sanitizer before 1.0.0 contains CSS injection and remote reference bypass vulnerabilities that allow attackers to embed external resources by uploading crafted SVG files. Attackers can use unsanitized style content, unquoted url() values, or image href attributes to exfiltrate page data, track users, or disclose visitor IP addresses.",
    "evidence": "cve:CVE-2026-117539",
    "products": [
      {
        "name": {
          "value": "svg-sanitizer",
          "evidence": "/containers/cna/affected/0/product"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-117539",
      "aliases": [
        "CVE-2026-117539"
      ],
      "metrics": [
        {
          "format": "CVSS",
          "cvssV4_0": {
            "version": "4.0",
            "baseScore": 5.1,
            "attackVector": "NETWORK",
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N",
            "userInteraction": "PASSIVE",
            "attackComplexity": "LOW",
            "attackRequirements": "NONE",
            "privilegesRequired": "LOW",
            "subIntegrityImpact": "NONE",
            "vulnIntegrityImpact": "NONE",
            "subAvailabilityImpact": "NONE",
            "vulnAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "vulnConfidentialityImpact": "LOW"
          }
        },
        {
          "format": "CVSS",
          "cvssV3_1": {
            "scope": "UNCHANGED",
            "version": "3.1",
            "baseScore": 3.5,
            "attackVector": "NETWORK",
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N",
            "integrityImpact": "NONE",
            "userInteraction": "REQUIRED",
            "attackComplexity": "LOW",
            "availabilityImpact": "NONE",
            "privilegesRequired": "LOW",
            "confidentialityImpact": "LOW"
          }
        }
      ],
      "affected": [
        {
          "vendor": "darylldoyle",
          "product": "svg-sanitizer",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "1.0.0",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "1.0.0",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ],
      "modified": "2026-10-27T10:59:33.466Z",
      "provider": "cve",
      "references": [
        "https://github.com/darylldoyle/svg-sanitizer/security/advisories/GHSA-qhmf-972w-m957",
        "https://www.vulncheck.com/advisories/darylldoyle-svg-sanitizer-before-1.0.0-css-injection-and-remote-reference-bypass"
      ],
      "provider_metadata": {
        "cna": {
          "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
          "shortName": "VulnCheck",
          "dateUpdated": "2026-10-27T10:59:33.466Z"
        }
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-117539",
        "evidence": "/cveMetadata/cveId"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/containers/cna/metrics"
  },
  "source_id": "core-cve",
  "document_id": 391933,
  "published_at": "2026-10-27T10:59:33.466+00:00"
}