Common Weakness Enumeration

CWE-434

Allowed

Unrestricted Upload of File with Dangerous Type

Abstraction: Base · Status: Draft

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

5966 vulnerabilities reference this CWE, most recent first.

CVE-2019-18288 (GCVE-0-2019-18288)

Vulnerability from cvelistv5 – Published: 2019-12-12 19:08 – Updated: 2024-08-05 01:47
VLAI
Summary
A vulnerability has been identified in SPPA-T3000 Application Server (All versions < Service Pack R8.2 SP2). An attacker with valid authentication at the RMI interface could be able to gain remote code execution through an unsecured file upload. Please note that an attacker needs to have access to the Application Highway in order to exploit this vulnerability. At the time of advisory publication no public exploitation of this security vulnerability was known.
Severity
No CVSS data available.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Siemens SPPA-T3000 Application Server Affected: All versions < Service Pack R8.2 SP2
Create a notification for this product.
Show details on NVD website

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CVE-2019-17325 (GCVE-0-2019-17325)

Vulnerability from cvelistv5 – Published: 2019-10-30 20:55 – Updated: 2024-08-05 01:40
VLAI
Summary
ClipSoft REXPERT 1.0.0.527 and earlier version allows remote attacker to upload arbitrary local file via the ActiveX method in RexViewerCtrl30.ocx. That could lead to disclosure of sensitive information. User interaction is required to exploit this vulnerability in that the target must visit a malicious web page.
Severity
No CVSS data available.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
ClipSoft REXPERT Affected: 1.0.0.527 and earlier
Create a notification for this product.
Show details on NVD website

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CVE-2019-12803 (GCVE-0-2019-12803)

Vulnerability from cvelistv5 – Published: 2019-07-10 19:34 – Updated: 2024-08-04 23:32
VLAI
Title
Hunesion i-oneNet unrestricted file upload vulnerability
Summary
In Hunesion i-oneNet version 3.0.7 ~ 3.0.53 and 4.0.4 ~ 4.0.16, the specific upload web module doesn't verify the file extension and type, and an attacker can upload a webshell. After the webshell upload, an attacker can use the webshell to perform remote code exection such as running a system command.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Hunesion i-oneNet Affected: 3.0.7~3.0.53
Affected: 4.0.4~4.0.16
Create a notification for this product.
Show details on NVD website

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CVE-2019-10959 (GCVE-0-2019-10959)

Vulnerability from cvelistv5 – Published: 2019-06-13 20:03 – Updated: 2024-08-04 22:40
VLAI
Summary
BD Alaris Gateway Workstation Versions, 1.1.3 Build 10, 1.1.3 MR Build 11, 1.2 Build 15, 1.3.0 Build 14, 1.3.1 Build 13, This does not impact the latest firmware Versions 1.3.2 and 1.6.1, Additionally, the following products using software Version 2.3.6 and below, Alaris GS, Alaris GH, Alaris CC, Alaris TIVA, The application does not restrict the upload of malicious files during a firmware update.
Severity
No CVSS data available.
CWE
  • CWE-434 - UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434
Assigner
References
Impacted products
Vendor Product Version
n/a BD Alaris Gateway Workstation Affected: Versions, 1.1.3 Build 10, 1.1.3 MR Build 11, 1.2 Build 15, 1.3.0 Build 14, 1.3.1 Build 13, This does not impact the latest firmware Versions 1.3.2 and 1.6.1, Additionally, the following products using software Version 2.3.6 and below, Alaris GS, Alaris GH, Alaris CC, Alaris TIVA
Show details on NVD website

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CVE-2019-10935 (GCVE-0-2019-10935)

Vulnerability from cvelistv5 – Published: 2019-07-11 21:17 – Updated: 2024-08-04 22:40
VLAI
Summary
A vulnerability has been identified in SIMATIC PCS 7 V8.0 and earlier (All versions), SIMATIC PCS 7 V8.1 (All versions < V8.1 with WinCC V7.3 Upd 19), SIMATIC PCS 7 V8.2 (All versions < V8.2 SP1 with WinCC V7.4 SP1 Upd 11), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP2 with WinCC V7.4 SP1 Upd11), SIMATIC WinCC Professional (TIA Portal V13) (All versions), SIMATIC WinCC Professional (TIA Portal V14) (All versions < V14 SP1 Upd 9), SIMATIC WinCC Professional (TIA Portal V15) (All versions < V15.1 Upd 3), SIMATIC WinCC Runtime Professional V13 (All versions), SIMATIC WinCC Runtime Professional V14 (All versions < V14.1 Upd 8), SIMATIC WinCC Runtime Professional V15 (All versions < V15.1 Upd 3), SIMATIC WinCC V7.2 and earlier (All versions), SIMATIC WinCC V7.3 (All versions < V7.3 Upd 19), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Upd 11), SIMATIC WinCC V7.5 (All versions < V7.5 Upd 3). The SIMATIC WinCC DataMonitor web application of the affected products allows to upload arbitrary ASPX code. The security vulnerability could be exploited by an authenticated attacker with network access to the WinCC DataMonitor application. No user interaction is required to exploit this vulnerability. The vulnerability impacts confidentiality, integrity, and availability of the affected device. At the stage of publishing this security advisory no public exploitation is known.
Severity
No CVSS data available.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Siemens AG SIMATIC PCS 7 V8.0 and earlier Affected: All versions
Create a notification for this product.
Siemens AG SIMATIC PCS 7 V8.1 Affected: All versions < V8.1 with WinCC V7.3 Upd 19
Create a notification for this product.
Siemens AG SIMATIC PCS 7 V8.2 Affected: All versions < V8.2 SP1 with WinCC V7.4 SP1 Upd 11
Create a notification for this product.
Siemens AG SIMATIC PCS 7 V9.0 Affected: All versions < V9.0 SP2 with WinCC V7.4 SP1 Upd11
Create a notification for this product.
Siemens AG SIMATIC WinCC Professional (TIA Portal V13) Affected: All versions
Create a notification for this product.
Siemens AG SIMATIC WinCC Professional (TIA Portal V14) Affected: All versions < V14 SP1 Upd 9
Create a notification for this product.
Siemens AG SIMATIC WinCC Professional (TIA Portal V15) Affected: All versions < V15.1 Upd 3
Create a notification for this product.
Siemens AG SIMATIC WinCC Runtime Professional V13 Affected: All versions
Create a notification for this product.
Siemens AG SIMATIC WinCC Runtime Professional V14 Affected: All versions < V14.1 Upd 8
Create a notification for this product.
Siemens AG SIMATIC WinCC Runtime Professional V15 Affected: All versions < V15.1 Upd 3
Create a notification for this product.
Siemens AG SIMATIC WinCC V7.2 and earlier Affected: All versions
Create a notification for this product.
Siemens AG SIMATIC WinCC V7.3 Affected: All versions < V7.3 Upd 19
Create a notification for this product.
Siemens AG SIMATIC WinCC V7.4 Affected: All versions < V7.4 SP1 Upd 11
Create a notification for this product.
Siemens AG SIMATIC WinCC V7.5 Affected: All versions < V7.5 Upd 3
Create a notification for this product.
Show details on NVD website

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CVE-2019-6839 (GCVE-0-2019-6839)

Vulnerability from cvelistv5 – Published: 2019-09-17 19:17 – Updated: 2024-08-04 20:31
VLAI
Summary
A CWE-434: Unrestricted Upload of File with Dangerous Type vulnerability exists in U.motion Server (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, MEG6260-0415 - U.motion KNX Server Plus, Touch 15), which could allow a user with low privileges to upload a rogue file.
Severity
No CVSS data available.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
n/a U.motion Servers (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, and MEG6260-0415 - U.motion KNX Server Plus, Touch 1) Affected: U.motion Servers (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, and MEG6260-0415 - U.motion KNX Server Plus, Touch 1)
Show details on NVD website

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CVE-2019-3940 (GCVE-0-2019-3940)

Vulnerability from cvelistv5 – Published: 2019-04-09 15:05 – Updated: 2024-08-04 19:26
VLAI
Summary
Advantech WebAccess 8.3.4 is vulnerable to file upload attacks via unauthenticated RPC call. An unauthenticated, remote attacker can use this vulnerability to execute arbitrary code.
Severity
No CVSS data available.
CWE
  • CWE-434 - Unrestricted File Upload
Assigner
References
Impacted products
Vendor Product Version
Advantech WebAccess Affected: 8.3.4
Create a notification for this product.
Date Public
2019-04-04 00:00
Show details on NVD website

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CVE-2019-1888 (GCVE-0-2019-1888)

Vulnerability from cvelistv5 – Published: 2020-09-23 00:26 – Updated: 2024-11-13 18:05
VLAI
Title
Cisco Unified Contact Center Express Privilege Escalation Vulnerability
Summary
A vulnerability in the Administration Web Interface of Cisco Unified Contact Center Express (Unified CCX) could allow an authenticated, remote attacker to upload arbitrary files and execute commands on the underlying operating system. To exploit this vulnerability, an attacker needs valid Administrator credentials. The vulnerability is due to insufficient restrictions for the content uploaded to an affected system. An attacker could exploit this vulnerability by uploading arbitrary files containing operating system commands that will be executed by an affected system. A successful exploit could allow the attacker to execute arbitrary commands with the privileges of the web interface and then elevate their privileges to root.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
URL Tags
https://tools.cisco.com/security/center/content/C… vendor-advisoryx_refsource_CISCO
Impacted products
Date Public
2020-02-19 00:00
Show details on NVD website

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CVE-2018-25436 (GCVE-0-2018-25436)

Vulnerability from cvelistv5 – Published: 2026-06-15 12:00 – Updated: 2026-06-15 16:19
VLAI
Title
WordPress Plugin Baggage Freight Shipping Australia 0.1.0 Arbitrary File Upload
Summary
WordPress Plugin Baggage Freight Shipping Australia 0.1.0 contains an unrestricted file upload vulnerability that allows unauthenticated attackers to upload arbitrary files by exploiting the upload-package.php endpoint. Attackers can submit POST requests with malicious file extensions to the upload handler, which moves files without validation to the plugin upload directory, enabling remote code execution.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
Impacted products
Date Public
2018-12-24 00:00
Credits
Kaimi
Show details on NVD website

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CVE-2018-25409 (GCVE-0-2018-25409)

Vulnerability from cvelistv5 – Published: 2026-05-30 14:55 – Updated: 2026-06-01 15:25
VLAI
Title
SIM-PKH 2.4.1 Arbitrary File Upload via aksi_pengurus.php
Summary
SIM-PKH 2.4.1 contains an arbitrary file upload vulnerability that allows authenticated attackers to upload malicious files by submitting PHP code through the fupload parameter. Attackers can upload PHP files via the aksi_pengurus.php endpoint with module=pengurus and act=update parameters, which are stored in the foto directory and executed as web scripts.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
Impacted products
Vendor Product Version
Simpkh SIM-PKH Affected: 2.4.1
Create a notification for this product.
Date Public
2018-10-22 00:00
Credits
Ihsan Sencan
Show details on NVD website

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          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-30T14:55:16.382Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "name": "ExploitDB-45659",
          "tags": [
            "exploit"
          ],
          "url": "https://www.exploit-db.com/exploits/45659"
        },
        {
          "name": "Official Product Homepage",
          "tags": [
            "product"
          ],
          "url": "https://simpkh.sourceforge.io/"
        },
        {
          "name": "Product Reference",
          "tags": [
            "product"
          ],
          "url": "https://sourceforge.net/projects/simpkh/files/latest/download"
        },
        {
          "name": "VulnCheck Advisory: SIM-PKH 2.4.1 Arbitrary File Upload via aksi_pengurus.php",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/sim-pkh-arbitrary-file-upload-via-aksi-pengurus-php"
        }
      ],
      "title": "SIM-PKH 2.4.1 Arbitrary File Upload via aksi_pengurus.php",
      "x_generator": {
        "engine": "vulncheck"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2018-25409",
    "datePublished": "2026-05-30T14:55:16.382Z",
    "dateReserved": "2026-05-30T12:26:46.782Z",
    "dateUpdated": "2026-06-01T15:25:28.271Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Mitigation
Architecture and Design

Generate a new, unique filename for an uploaded file instead of using the user-supplied filename, so that no external input is used at all.[REF-422] [REF-423]

Mitigation MIT-21
Architecture and Design

Strategy: Enforcement by Conversion

When the set of acceptable objects, such as filenames or URLs, is limited or known, create a mapping from a set of fixed input values (such as numeric IDs) to the actual filenames or URLs, and reject all other inputs.

Mitigation
Architecture and Design

Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically. [REF-423]

Mitigation MIT-5
Implementation

Strategy: Input Validation

  • Assume all input is malicious. Use an "accept known good" input validation strategy, i.e., use a list of acceptable inputs that strictly conform to specifications. Reject any input that does not strictly conform to specifications, or transform it into something that does.
  • When performing input validation, consider all potentially relevant properties, including length, type of input, the full range of acceptable values, missing or extra inputs, syntax, consistency across related fields, and conformance to business rules. As an example of business rule logic, "boat" may be syntactically valid because it only contains alphanumeric characters, but it is not valid if the input is only expected to contain colors such as "red" or "blue."
  • Do not rely exclusively on looking for malicious or malformed inputs. This is likely to miss at least one undesirable input, especially if the code's environment changes. This can give attackers enough room to bypass the intended validation. However, denylists can be useful for detecting potential attacks or determining which inputs are so malformed that they should be rejected outright.
  • For example, limiting filenames to alphanumeric characters can help to restrict the introduction of unintended file extensions.
Mitigation
Architecture and Design

Define a very limited set of allowable extensions and only generate filenames that end in these extensions. Consider the possibility of XSS (CWE-79) before allowing .html or .htm file types.

Mitigation
Implementation

Strategy: Input Validation

Ensure that only one extension is used in the filename. Some web servers, including some versions of Apache, may process files based on inner extensions so that "filename.php.gif" is fed to the PHP interpreter.[REF-422] [REF-423]

Mitigation
Implementation

When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.

Mitigation MIT-15
Architecture and Design

For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.

Mitigation
Implementation

Do not rely exclusively on sanity checks of file contents to ensure that the file is of the expected type and size. It may be possible for an attacker to hide code in some file segments that will still be executed by the server. For example, GIF images may contain a free-form comments field.

Mitigation
Implementation

Do not rely exclusively on the MIME content type or filename attribute when determining how to render a file. Validating the MIME content type and ensuring that it matches the extension is only a partial solution.

Mitigation MIT-17
Architecture and Design Operation

Strategy: Environment Hardening

Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.

Mitigation MIT-22
Architecture and Design Operation

Strategy: Sandbox or Jail

  • Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.
CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs

In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.