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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.

6320 vulnerabilities reference this CWE, most recent first.

CVE-2026-6211 (GCVE-0-2026-6211)

Vulnerability from cvelistv5 – Published: 2026-06-12 14:10 – Updated: 2026-06-12 15:17
VLAI
Title
Arbitrary File Upload in Global IT's WEOLL
Summary
Unrestricted upload of file with dangerous type vulnerability in Global IT Informatics Services Inc. WEOLL allows Accessing Functionality Not Properly Constrained by ACLs. This issue affects WEOLL: from 2.0.9 before 3.2.45.33.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-12 15:17 UTC
CWE
  • CWE-434 - Unrestricted upload of file with dangerous type
References
Impacted products
Vendor Product Version
Global IT Informatics Services Inc. WEOLL Affected: 2.0.9 , < 3.2.45.33 (custom)
Create a notification for this product.
Date Public
2026-06-12 14:05
Show details on NVD website

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CVE-2026-6147 (GCVE-0-2026-6147)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:37 – Updated: 2026-08-05 14:27
VLAI
Title
LightSync Pro <= 2.1.6 - Authenticated (Author+) Arbitrary File Upload
Summary
The LightSync Pro plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the rest_replace_media() function in all versions up to, and including, 2.1.6. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 14:24 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Show details on NVD website

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CVE-2026-5718 (GCVE-0-2026-5718)

Vulnerability from cvelistv5 – Published: 2026-04-17 17:25 – Updated: 2026-05-27 00:26
VLAI
Title
Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.7 - Unauthenticated Arbitrary File Upload via Non-ASCII Filename Blacklist Bypass
Summary
The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file upload in versions up to, and including, 1.3.9.7. This is due to insufficient file type validation that occurs when custom blacklist types are configured, which replaces the default dangerous extension denylist instead of merging with it, and the wpcf7_antiscript_file_name() sanitization function being bypassed for filenames containing non-ASCII characters. This makes it possible for unauthenticated attackers to upload arbitrary files, such as PHP files, to the server, which can be leveraged to achieve remote code execution. The vulnerability was originally reported by Leonid Semenenko (lsemenenko) and partially patched in version 1.3.9.7. A bypass for the patch was separately discovered and reported by Nguyen Hung (Mitchell).
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-17 18:34 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Impacted products
Show details on NVD website

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CVE-2026-5704 (GCVE-0-2026-5704)

Vulnerability from cvelistv5 – Published: 2026-04-06 15:17 – Updated: 2026-09-10 22:01
VLAI
Title
Tar: tar: hidden file injection via crafted archives
Summary
A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, potentially allowing an attacker to introduce malicious files onto a system without detection.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-07 15:48 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Impacted products
Vendor Product Version
Red Hat Red Hat Enterprise Linux 10 Unaffected: 2:1.35-13.el10_2 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 2:1.34-13.el9_8 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:9::baseos
Create a notification for this product.
Red Hat Red Hat Discovery 2 Unaffected: 1788205779 , < * (rpm)
    cpe:/a:redhat:discovery:2::el9
Create a notification for this product.
Red Hat Red Hat Hardened Images Unaffected: 1.35-10.hum1 , < * (rpm)
    cpe:/a:redhat:hummingbird:1
Create a notification for this product.
Red Hat Red Hat Update Infrastructure 5 Unaffected: 1788880445 , < * (rpm)
    cpe:/a:redhat:rhui:5::el9
Create a notification for this product.
Red Hat Red Hat Update Infrastructure 5 Unaffected: 1788880464 , < * (rpm)
    cpe:/a:redhat:rhui:5::el9
Create a notification for this product.
Red Hat Red Hat Update Infrastructure 5 Unaffected: 1788880456 , < * (rpm)
    cpe:/a:redhat:rhui:5::el9
Create a notification for this product.
Red Hat Red Hat Update Infrastructure 5 Unaffected: 1788765051 , < * (rpm)
    cpe:/a:redhat:rhui:5::el9
Create a notification for this product.
Red Hat Red Hat Update Infrastructure 5 Unaffected: 1788880581 , < * (rpm)
    cpe:/a:redhat:rhui:5::el9
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 6     cpe:/o:redhat:enterprise_linux:6
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8     cpe:/o:redhat:enterprise_linux:8
Create a notification for this product.
Date Public
2026-04-06 13:36
Show details on NVD website

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CVE-2026-5670 (GCVE-0-2026-5670)

Vulnerability from cvelistv5 – Published: 2026-04-06 16:45 – Updated: 2026-04-07 14:23
VLAI
Title
Cyber-III Student-Management-System upload.php move_uploaded_file unrestricted upload
Summary
A vulnerability was found in Cyber-III Student-Management-System up to 1a938fa61e9f735078e9b291d2e6215b4942af3f. This issue affects the function move_uploaded_file of the file /AssignmentSection/submission/upload.php. Performing a manipulation of the argument File results in unrestricted upload. The attack can be initiated remotely. The exploit has been made public and could be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-07 14:22 UTC
CWE
References
Impacted products
Vendor Product Version
Cyber-III Student-Management-System Affected: 1a938fa61e9f735078e9b291d2e6215b4942af3f
Create a notification for this product.
Show details on NVD website

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CVE-2026-5576 (GCVE-0-2026-5576)

Vulnerability from cvelistv5 – Published: 2026-04-05 15:15 – Updated: 2026-04-06 15:26 X_Freeware
VLAI
Title
SourceCodester/jkev Record Management System Add Employee save_emp.php unrestricted upload
Summary
A flaw has been found in SourceCodester/jkev Record Management System 1.0. Affected by this issue is some unknown functionality of the file save_emp.php of the component Add Employee Page. This manipulation causes unrestricted upload. Remote exploitation of the attack is possible. The exploit has been published and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-06 15:26 UTC
CWE
References
Show details on NVD website

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CVE-2026-5573 (GCVE-0-2026-5573)

Vulnerability from cvelistv5 – Published: 2026-04-05 14:30 – Updated: 2026-04-06 18:05
VLAI
Title
Technostrobe HI-LED-WR120-G2 fs unrestricted upload
Summary
A weakness has been identified in Technostrobe HI-LED-WR120-G2 5.5.0.1R6.03.30. This impacts an unknown function of the file /fs. Executing a manipulation of the argument cwd can lead to unrestricted upload. The attack can be launched remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-06 18:05 UTC
CWE
References
URL Tags
https://vuldb.com/vuln/355343 vdb-entrytechnical-description
https://vuldb.com/vuln/355343/cti signaturepermissions-required
https://vuldb.com/submit/783326 third-party-advisory
https://github.com/shiky8/my--cve-vulnerability-r… exploit
Impacted products
Vendor Product Version
Technostrobe HI-LED-WR120-G2 Affected: 5.5.0.1R6.03.30
Create a notification for this product.
Show details on NVD website

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CVE-2026-5546 (GCVE-0-2026-5546)

Vulnerability from cvelistv5 – Published: 2026-04-05 06:00 – Updated: 2026-04-06 15:30 X_Freeware
VLAI
Title
Campcodes Complete Online Learning Management System Crud_model.php add_lesson unrestricted upload
Summary
A flaw has been found in Campcodes Complete Online Learning Management System 1.0. This impacts the function add_lesson of the file /application/models/Crud_model.php. This manipulation causes unrestricted upload. It is possible to initiate the attack remotely. The exploit has been published and may be used.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-06 15:30 UTC
CWE
References
Impacted products
Show details on NVD website

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CVE-2026-5524 (GCVE-0-2026-5524)

Vulnerability from cvelistv5 – Published: 2026-07-02 12:34 – Updated: 2026-07-02 15:00
VLAI
Title
Divi Form Builder <= 5.1.8 - Unauthenticated Arbitrary File Upload Leading to Remote Code Execution via 'acceptFileTypes' Parameter
Summary
The Divi Form Builder plugin for WordPress is vulnerable to Arbitrary File Upload leading to Remote Code Execution in all versions up to and including 5.1.8. This is due to insufficient file extension validation in the do_image_upload() function where user-supplied input from the acceptFileTypes POST parameter is directly interpolated into a regular expression used to validate uploaded files. Attackers can specify PHP-executable extensions such as .phtml, .phar, .php5, or .php7 to bypass the plugin's .htaccess protection which only blocks .php files specifically. Additionally, on Nginx-based servers, the .htaccess protection is completely ineffective as Nginx does not process .htaccess files. This makes it possible for unauthenticated attackers (who can obtain a nonce from any public page containing a form) to upload executable PHP files to the publicly accessible /wp-content/uploads/de_fb_uploads/ directory and achieve Remote Code Execution by accessing the uploaded file via HTTP. The vulnerability was partially patched in version 5.1.3.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-02 15:00 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Impacted products
Vendor Product Version
Divi Engine Divi Form Builder Affected: 0 , ≤ 5.1.8 (semver)
Create a notification for this product.
Credits
Show details on NVD website

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CVE-2026-5482 (GCVE-0-2026-5482)

Vulnerability from cvelistv5 – Published: 2026-06-15 11:44 – Updated: 2026-06-15 12:32 Unsupported When Assigned X_Open Source
VLAI
Title
Remote Code Execution via Unrestricted File Upload in Responsive FileManager
Summary
Responsive FileManager's allows an unauthenticated attacker to upload files of any type and extension without restriction using dialog.php endpoint, leading to Remote Code Execution.  This project is unmaintained at the time of CVE assignment. The vulnerability was found in the latest release 9.14.0
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 12:32 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
References
Impacted products
Vendor Product Version
Tecrail Responsive FileManager Affected: 0 , ≤ 9.14.0 (semver)
Create a notification for this product.
Date Public
2026-06-15 11:44
Show details on NVD website

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          "descriptions": [
            {
              "cweId": "CWE-434",
              "description": "CWE-434 Unrestricted Upload of File with Dangerous Type",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-15T11:44:46.963Z",
        "orgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
        "shortName": "CERT-PL"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://cert.pl/en/posts/2026/06/CVE-2026-5482"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/trippo/ResponsiveFilemanager"
        }
      ],
      "source": {
        "discovery": "EXTERNAL"
      },
      "tags": [
        "unsupported-when-assigned",
        "x_open-source"
      ],
      "title": "Remote Code Execution via Unrestricted File Upload in Responsive FileManager",
      "x_generator": {
        "engine": "Vulnogram 0.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "4bb8329e-dd38-46c1-aafb-9bf32bcb93c6",
    "assignerShortName": "CERT-PL",
    "cveId": "CVE-2026-5482",
    "datePublished": "2026-06-15T11:44:46.963Z",
    "dateReserved": "2026-04-03T09:53:14.018Z",
    "dateUpdated": "2026-06-15T12:32:39.368Z",
    "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.