Vulnerability-Lookup

CVE-2025-59049 (GCVE-0-2025-59049)

Vulnerability from cvelistv5 – Published: 2025-09-10 18:49 – Updated: 2025-09-10 19:19

Title

Mockoon has a Path Traversal and LFI in the static file serving endpoint

Summary

Mockoon provides way to design and run mock APIs. Prior to version 9.2.0, a mock API configuration for static file serving follows the same approach presented in the documentation page, where the server filename is generated via templating features from user input is vulnerable to Path Traversal and LFI, allowing an attacker to get any file in the mock server filesystem. The issue may be particularly relevant in cloud hosted server instances. Version 9.2.0 fixes the issue.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CWE

CWE-73 - External Control of File Name or Path
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-24 - Path Traversal: '../filedir'

Assigner

GitHub_M

References

URL

Tags

	https://github.com/mockoon/mockoon/security/advis…	x_refsource_CONFIRM
	https://github.com/mockoon/mockoon/commit/c7f6e23…	x_refsource_MISC
	https://github.com/mockoon/mockoon/blob/1ed31c405…	x_refsource_MISC
	https://github.com/mockoon/mockoon/blob/1ed31c405…	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	mockoon	mockoon	Affected: < 9.2.0

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2025-59049

Vulnerability from fkie_nvd - Published: 2025-09-10 19:15 - Updated: 2025-09-11 17:14

Severity ?

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Summary

References

	URL	Tags
	security-advisories@github.com	https://github.com/mockoon/mockoon/blob/1ed31c4059d7f757f6cb2a43e10dc81b0d9c55a9/packages/commons-server/src/libs/server/server.ts#L1400
	security-advisories@github.com	https://github.com/mockoon/mockoon/blob/1ed31c4059d7f757f6cb2a43e10dc81b0d9c55a9/packages/commons-server/src/libs/server/server.ts#L1551
	security-advisories@github.com	https://github.com/mockoon/mockoon/commit/c7f6e23e87dc3b8cc44e5802af046200a797bd2e
	security-advisories@github.com	https://github.com/mockoon/mockoon/security/advisories/GHSA-w7f9-wqc4-3wxr

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Mockoon provides way to design and run mock APIs. Prior to version 9.2.0, a mock API configuration for static file serving follows the same approach presented in the documentation page, where the server filename is generated via templating features from user input is vulnerable to Path Traversal and LFI, allowing an attacker to get any file in the mock server filesystem.\nThe issue may be particularly relevant in cloud hosted server instances. Version 9.2.0 fixes the issue."
    },
    {
      "lang": "es",
      "value": "Mockoon proporciona una forma de dise\u00f1ar y ejecutar APIs simuladas. Antes de la versi\u00f3n 9.2.0, una configuraci\u00f3n de API simulada para el servicio de archivos est\u00e1ticos sigue el mismo enfoque presentado en la p\u00e1gina de documentaci\u00f3n, donde el nombre de archivo del servidor se genera a trav\u00e9s de caracter\u00edsticas de plantillas a partir de la entrada del usuario es vulnerable a Salto de Ruta y LFI, permitiendo a un atacante obtener cualquier archivo en el sistema de archivos del servidor simulado. El problema puede ser particularmente relevante en instancias de servidor alojadas en la nube. La versi\u00f3n 9.2.0 corrige el problema."
    }
  ],
  "id": "CVE-2025-59049",
  "lastModified": "2025-09-11T17:14:10.147",
  "metrics": {
    "cvssMetricV31": [
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        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
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          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
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          "privilegesRequired": "NONE",
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          "version": "3.1"
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        "type": "Secondary"
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        },
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          "value": "CWE-24"
        },
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          "value": "CWE-73"
        }
      ],
      "source": "security-advisories@github.com",
      "type": "Secondary"
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  ]
}

GHSA-W7F9-WQC4-3WXR

Vulnerability from github – Published: 2025-03-11 16:17 – Updated: 2025-09-13 03:03

Summary

Mockoon has a Path Traversal and LFI in the static file serving endpoint

Details

Summary

A mock API configuration for static file serving following the same approach presented in the documentation page, where the server filename is generated via templating features from user input is vulnerable to Path Traversal and LFI, allowing an attacker to get any file in the mock server filesystem. The issue may be particularly relevant in cloud hosted server instances

Details

In sendFileWithCallback(code) and sendFile(code) the filePath variable is parsed using TemplateParser

let filePath = TemplateParser({
        shouldOmitDataHelper: false,
        // replace backslashes with forward slashes, but not if followed by a dot (to allow helpers with paths containing properties with dots: e.g. {{queryParam 'path.prop\.with\.dots'}})
        content: routeResponse.filePath.replace(/\\(?!\.)/g, '/'),
        environment: this.environment,
        processedDatabuckets: this.processedDatabuckets,
        globalVariables: this.globalVariables,
        request: serverRequest,
        envVarsPrefix: this.options.envVarsPrefix
      });

The path extracted from the request parameters used when composing the final file path is not sanitized and is vulnerable to path traversal exploits (e.g. ../../../../../etc/passwd)

PoC

Test setup

The issue has been tested with mockoon-cli, using the Docker image mockoon/cli:latest

config.json

# Folder setup
mkdir mockoon-test
cd mockoon-test

# put config.json in mockooon-test dir

mkdir static

# Run container
docker run -d --mount type=bind,source=./config.json,target=/data,readonly -v ./static:/static -p 3000:3000 mockoon/cli:latest -d data -p 3000

Payload to reproduce

Browsing directly to http://localhost:3000/static/%2F..%2F..%2F..%2F..%2F..%2Fetc%2Fpasswd is going to display the /etc/passwd file in the container filesystem

Severity ?

7.5 (High)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.1.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@mockoon/commons-server"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 9.1.0"
      },
      "package": {
        "ecosystem": "npm",
        "name": "@mockoon/cli"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9.2.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-59049"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22",
      "CWE-73"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-11T16:17:42Z",
    "nvd_published_at": "2025-09-10T19:15:42Z",
    "severity": "HIGH"
  },
  "details": "### Summary\nA mock API configuration for static file serving following the same approach presented in the [documentation page](https://mockoon.com/tutorials/create-endpoint-serving-static-file/), where the server filename is generated via templating features from user input is vulnerable to Path Traversal and LFI, allowing an attacker to get any file in the mock server filesystem.\nThe issue may be particularly relevant in cloud hosted server instances\n\n### Details\nIn `sendFileWithCallback`([code](https://github.com/mockoon/mockoon/blob/1ed31c4059d7f757f6cb2a43e10dc81b0d9c55a9/packages/commons-server/src/libs/server/server.ts#L1400)) and `sendFile`([code](https://github.com/mockoon/mockoon/blob/1ed31c4059d7f757f6cb2a43e10dc81b0d9c55a9/packages/commons-server/src/libs/server/server.ts#L1551)) the `filePath` variable is parsed using `TemplateParser`\n\n```js\nlet filePath = TemplateParser({\n        shouldOmitDataHelper: false,\n        // replace backslashes with forward slashes, but not if followed by a dot (to allow helpers with paths containing properties with dots: e.g. {{queryParam \u0027path.prop\\.with\\.dots\u0027}})\n        content: routeResponse.filePath.replace(/\\\\(?!\\.)/g, \u0027/\u0027),\n        environment: this.environment,\n        processedDatabuckets: this.processedDatabuckets,\n        globalVariables: this.globalVariables,\n        request: serverRequest,\n        envVarsPrefix: this.options.envVarsPrefix\n      });\n```\n\nThe path extracted from the request parameters used when composing the final file path is not sanitized and is vulnerable to path traversal exploits (e.g. `../../../../../etc/passwd`)\n\n### PoC\n#### Test setup\nThe issue has been tested with `mockoon-cli`, using the Docker image `mockoon/cli:latest`\n\n[config.json](https://github.com/user-attachments/files/18199899/config.json)\n\n```bash\n# Folder setup\nmkdir mockoon-test\ncd mockoon-test\n\n# put config.json in mockooon-test dir\n\nmkdir static\n```\n\n```bash\n# Run container\ndocker run -d --mount type=bind,source=./config.json,target=/data,readonly -v ./static:/static -p 3000:3000 mockoon/cli:latest -d data -p 3000\n```\n\n#### Payload to reproduce\nBrowsing directly to `http://localhost:3000/static/%2F..%2F..%2F..%2F..%2F..%2Fetc%2Fpasswd` is going to display the `/etc/passwd` file in the container filesystem",
  "id": "GHSA-w7f9-wqc4-3wxr",
  "modified": "2025-09-13T03:03:19Z",
  "published": "2025-03-11T16:17:42Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/mockoon/mockoon/security/advisories/GHSA-w7f9-wqc4-3wxr"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59049"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mockoon/mockoon/commit/c7f6e23e87dc3b8cc44e5802af046200a797bd2e"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/mockoon/mockoon"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mockoon/mockoon/blob/1ed31c4059d7f757f6cb2a43e10dc81b0d9c55a9/packages/commons-server/src/libs/server/server.ts#L1400"
    },
    {
      "type": "WEB",
      "url": "https://github.com/mockoon/mockoon/blob/1ed31c4059d7f757f6cb2a43e10dc81b0d9c55a9/packages/commons-server/src/libs/server/server.ts#L1551"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Mockoon has a Path Traversal and LFI in the static file serving endpoint"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2025-59049 (GCVE-0-2025-59049)

FKIE_CVE-2025-59049

GHSA-W7F9-WQC4-3WXR

Summary

Details

PoC

Test setup

Payload to reproduce

Tags

Sightings

Nomenclature