CVE-2025-11849 (GCVE-0-2025-11849)
Vulnerability from cvelistv5
Published
2025-10-17 05:00
Modified
2025-10-17 05:00
Severity ?
5.4 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:H/E:P
CWE
  • CWE-22 - Directory Traversal
Summary
Versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth before 1.11.0; versions of the package org.zwobble.mammoth:mammoth before 1.11.0 are vulnerable to Directory Traversal due to the lack of path or file type validation when processing a docx file containing an image with an external link (r:link attribute instead of embedded r:embed). The library resolves the URI to a file path and after reading, the content is encoded as base64 and included in the HTML output as a data URI. An attacker can read arbitrary files on the system where the conversion is performed or cause an excessive resources consumption by crafting a docx file that links to special device files such as /dev/random or /dev/zero.
References
report@snyk.iohttps://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10
report@snyk.iohttps://github.com/mwilliamson/mammoth.js/commit/c54aaeb43a7941317c1f3c119ffa92090f988820
report@snyk.iohttps://security.snyk.io/vuln/SNYK-DOTNET-MAMMOTH-13561968
report@snyk.iohttps://security.snyk.io/vuln/SNYK-JAVA-ORGZWOBBLEMAMMOTH-13561969
report@snyk.iohttps://security.snyk.io/vuln/SNYK-JS-MAMMOTH-13554470
report@snyk.iohttps://security.snyk.io/vuln/SNYK-PYTHON-MAMMOTH-13561967
Impacted products
Vendor Product Version
n/a mammoth Version: 0.3.25   ≤
   n/a mammoth Version: 0.3.25   ≤
   n/a Mammoth Version: 0   ≤
   n/a org.zwobble.mammoth:mammoth Version: 0   ≤
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "mammoth",
          "vendor": "n/a",
          "versions": [
            {
              "lessThan": "1.11.0",
              "status": "affected",
              "version": "0.3.25",
              "versionType": "semver"
            }
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          "vendor": "n/a",
          "versions": [
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              "lessThan": "1.11.0",
              "status": "affected",
              "version": "0.3.25",
              "versionType": "semver"
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        {
          "product": "Mammoth",
          "vendor": "n/a",
          "versions": [
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          "vendor": "n/a",
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      "credits": [
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          "value": "Audun Wigum Arbo"
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      "descriptions": [
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          "value": "Versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth from 0.3.25 and before 1.11.0; versions of the package mammoth before 1.11.0; versions of the package org.zwobble.mammoth:mammoth before 1.11.0 are vulnerable to Directory Traversal due to the lack of path or file type validation when processing a docx file containing an image with an external link (r:link attribute instead of embedded r:embed). The library resolves the URI to a file path and after reading, the content is encoded as base64 and included in the HTML output as a data URI. An attacker can read arbitrary files on the system where the conversion is performed or cause an excessive resources consumption by crafting a docx file that links to special device files such as /dev/random or /dev/zero."
        }
      ],
      "metrics": [
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            "attackVector": "NETWORK",
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            "confidentialityImpact": "HIGH",
            "exploitCodeMaturity": "PROOF_OF_CONCEPT",
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            "scope": "CHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:H/E:P",
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            "exploitMaturity": "PROOF_OF_CONCEPT",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "HIGH",
            "subConfidentialityImpact": "HIGH",
            "subIntegrityImpact": "NONE",
            "userInteraction": "PASSIVE",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:H/SI:N/SA:H/E:P",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "NONE"
          }
        }
      ],
      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-22",
              "description": "Directory Traversal",
              "lang": "en"
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      "providerMetadata": {
        "dateUpdated": "2025-10-17T05:00:06.278Z",
        "orgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
        "shortName": "snyk"
      },
      "references": [
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          "url": "https://security.snyk.io/vuln/SNYK-JS-MAMMOTH-13554470"
        },
        {
          "url": "https://security.snyk.io/vuln/SNYK-PYTHON-MAMMOTH-13561967"
        },
        {
          "url": "https://security.snyk.io/vuln/SNYK-DOTNET-MAMMOTH-13561968"
        },
        {
          "url": "https://security.snyk.io/vuln/SNYK-JAVA-ORGZWOBBLEMAMMOTH-13561969"
        },
        {
          "url": "https://gist.github.com/AudunWA/4d690d9ae5efdafe7cf71d9c2ee90a10"
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          "url": "https://github.com/mwilliamson/mammoth.js/commit/c54aaeb43a7941317c1f3c119ffa92090f988820"
        }
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    }
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  "cveMetadata": {
    "assignerOrgId": "bae035ff-b466-4ff4-94d0-fc9efd9e1730",
    "assignerShortName": "snyk",
    "cveId": "CVE-2025-11849",
    "datePublished": "2025-10-17T05:00:06.278Z",
    "dateReserved": "2025-10-16T09:34:45.608Z",
    "dateUpdated": "2025-10-17T05:00:06.278Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
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  }
}


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