FKIE_CVE-2023-40013

Vulnerability from fkie_nvd - Published: 2023-08-14 21:15 - Updated: 2026-06-17 06:15
Severity
7.1 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
5.4 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
Summary
SVG Loader is a javascript library that fetches SVGs using XMLHttpRequests and injects the SVG code in the tag's place. According to the docs, svg-loader will strip all JS code before injecting the SVG file for security reasons but the input sanitization logic is not sufficient and can be trivially bypassed. This allows an attacker to craft a malicious SVG which can result in Cross-site Scripting (XSS). When trying to sanitize the svg the lib removes event attributes such as `onmouseover`, `onclick` but the list of events is not exhaustive. Any website which uses external-svg-loader and allows its users to provide svg src, upload svg files would be susceptible to stored XSS attack. This issue has been addressed in commit `d3562fc08` which is included in releases from 1.6.9. Users are advised to upgrade. There are no known workarounds for this vulnerability.
References
security-advisories@github.comhttps://github.com/shubhamjain/svg-loader/blob/main/svg-loader.js#L125-L128Product
security-advisories@github.comhttps://github.com/shubhamjain/svg-loader/commit/d3562fc08497aec5f33eb82017fa1417b3319e2cPatch
security-advisories@github.comhttps://github.com/shubhamjain/svg-loader/security/advisories/GHSA-xc2r-jf2x-gjr8Vendor Advisory
security-advisories@github.comhttps://github.com/shubhamjain/svg-loader/tree/main#2-enable-javascriptProduct
af854a3a-2127-422b-91ae-364da2661108https://github.com/shubhamjain/svg-loader/blob/main/svg-loader.js#L125-L128Product
af854a3a-2127-422b-91ae-364da2661108https://github.com/shubhamjain/svg-loader/commit/d3562fc08497aec5f33eb82017fa1417b3319e2cPatch
af854a3a-2127-422b-91ae-364da2661108https://github.com/shubhamjain/svg-loader/security/advisories/GHSA-xc2r-jf2x-gjr8Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/shubhamjain/svg-loader/tree/main#2-enable-javascriptProduct
Impacted products
Vendor Product Version
shubhamjain svg_loader *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "svg-loader",
          "vendor": "shubhamjain",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.6.9"
            }
          ]
        }
      ],
      "source": "security-advisories@github.com"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:shubhamjain:svg_loader:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "svg_loader",
          "vendor": "shubhamjain",
          "versions": [
            {
              "lessThan": "1.6.9",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:shubhamjain:svg_loader:*:*:*:*:*:node.js:*:*",
              "matchCriteriaId": "1440C87D-1C44-4FB4-BAB5-D5A90A6DAEED",
              "versionEndExcluding": "1.6.9",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "SVG Loader is a javascript library that fetches SVGs using XMLHttpRequests and injects the SVG code in the tag\u0027s place. According to the docs, svg-loader will strip all JS code before injecting the SVG file for security reasons but the input sanitization logic is not sufficient and can be trivially bypassed. This allows an attacker to craft a malicious SVG which can result in Cross-site Scripting (XSS). When trying to sanitize the svg the lib removes event attributes such as `onmouseover`, `onclick` but the list of events is not exhaustive.  Any website which uses external-svg-loader and allows its users to provide svg src, upload svg files would be susceptible to stored XSS attack. This issue has been addressed in commit `d3562fc08` which is included in releases from 1.6.9. Users are advised to upgrade. There are no known workarounds for this vulnerability."
    }
  ],
  "id": "CVE-2023-40013",
  "lastModified": "2026-06-17T06:15:44.660",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 7.1,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.6,
        "impactScore": 5.5,
        "source": "security-advisories@github.com",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.4,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.3,
        "impactScore": 2.7,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-40013",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-02T20:29:25.846454Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-08-14T21:15:13.523",
  "references": [
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/shubhamjain/svg-loader/blob/main/svg-loader.js#L125-L128"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/shubhamjain/svg-loader/commit/d3562fc08497aec5f33eb82017fa1417b3319e2c"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/shubhamjain/svg-loader/security/advisories/GHSA-xc2r-jf2x-gjr8"
    },
    {
      "source": "security-advisories@github.com",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/shubhamjain/svg-loader/tree/main#2-enable-javascript"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/shubhamjain/svg-loader/blob/main/svg-loader.js#L125-L128"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://github.com/shubhamjain/svg-loader/commit/d3562fc08497aec5f33eb82017fa1417b3319e2c"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://github.com/shubhamjain/svg-loader/security/advisories/GHSA-xc2r-jf2x-gjr8"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Product"
      ],
      "url": "https://github.com/shubhamjain/svg-loader/tree/main#2-enable-javascript"
    }
  ],
  "sourceIdentifier": "security-advisories@github.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-79"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
    }
  ]
}



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