FKIE_CVE-2021-23814

Vulnerability from fkie_nvd - Published: 2021-12-17 20:15 - Updated: 2025-06-17 12:15
Severity
6.7 (Medium) - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
This affects versions of the package unisharp/laravel-filemanager before 2.6.2. The upload() function does not sufficiently validate the file type when uploading. An attacker may be able to reproduce the following steps: 1. Install a package with a web Laravel application. 2. Navigate to the Upload window 3. Upload an image file, then capture the request 4. Edit the request contents with a malicious file (webshell) 5. Enter the path of file uploaded on URL - Remote Code Execution **Note:** Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories).
References
report@snyk.iohttps://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26Broken Link, Third Party Advisory
report@snyk.iohttps://github.com/UniSharp/laravel-filemanager/issues/1113
report@snyk.iohttps://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1
report@snyk.iohttps://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2
report@snyk.iohttps://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199
af854a3a-2127-422b-91ae-364da2661108https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26Broken Link, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975
af854a3a-2127-422b-91ae-364da2661108https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199Third Party Advisory
Impacted products
Vendor Product Version
unisharp laravel-filemanager *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:unisharp:laravel-filemanager:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "4467027F-A375-40AE-AAC5-2A6CD3BC9598",
              "versionStartIncluding": "0.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "This affects versions of the package unisharp/laravel-filemanager before 2.6.2. The upload() function does not sufficiently validate the file type when uploading.\r\rAn attacker may be able to reproduce the following steps:\r\r1. Install a package with a web Laravel application.\r2. Navigate to the Upload window\r3. Upload an image file, then capture the request\r4. Edit the request contents with a malicious file (webshell)\r5. Enter the path of file uploaded on URL - Remote Code Execution\r\r\r**Note:** Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories)."
    },
    {
      "lang": "es",
      "value": "Esto afecta al paquete unisharp/laravel-filemanager desde la versi\u00f3n 0.0.0. La funci\u00f3n upload() no comprueba suficientemente el tipo de archivo cuando es cargado. Un atacante puede ser capaz de reproducir los siguientes pasos: - Instalar un paquete con una aplicaci\u00f3n web Laravel. - Navegar a la ventana de subida - Subir un archivo de imagen, luego capturar la petici\u00f3n - Editar el contenido de la petici\u00f3n con un archivo malicioso (webshell) - Introducir la ruta del archivo subido en la URL - Ejecuci\u00f3n de C\u00f3digo Remota. **Nota: La prevenci\u00f3n para extensiones malas puede hacerse usando una lista blanca en el archivo de configuraci\u00f3n (lfm.php). El documento correspondiente puede encontrarse en [aqu\u00ed](https://unisharp.github.io/laravel-filemanager/configfolder-categories)"
    }
  ],
  "id": "CVE-2021-23814",
  "lastModified": "2025-06-17T12:15:20.773",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "MEDIUM",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "PARTIAL",
          "baseScore": 6.5,
          "confidentialityImpact": "PARTIAL",
          "integrityImpact": "PARTIAL",
          "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P",
          "version": "2.0"
        },
        "exploitabilityScore": 8.0,
        "impactScore": 6.4,
        "obtainAllPrivilege": false,
        "obtainOtherPrivilege": false,
        "obtainUserPrivilege": false,
        "source": "nvd@nist.gov",
        "type": "Primary",
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "LOW",
          "baseScore": 6.7,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "REQUIRED",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L",
          "version": "3.1"
        },
        "exploitabilityScore": 1.2,
        "impactScore": 5.5,
        "source": "report@snyk.io",
        "type": "Secondary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2021-12-17T20:15:08.340",
  "references": [
    {
      "source": "report@snyk.io",
      "tags": [
        "Broken Link",
        "Third Party Advisory"
      ],
      "url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26"
    },
    {
      "source": "report@snyk.io",
      "url": "https://github.com/UniSharp/laravel-filemanager/issues/1113"
    },
    {
      "source": "report@snyk.io",
      "url": "https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1"
    },
    {
      "source": "report@snyk.io",
      "url": "https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2"
    },
    {
      "source": "report@snyk.io",
      "url": "https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Broken Link",
        "Third Party Advisory"
      ],
      "url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "url": "https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199"
    }
  ],
  "sourceIdentifier": "report@snyk.io",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-94"
        }
      ],
      "source": "report@snyk.io",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-434"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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