Common Weakness Enumeration

CWE-434

Allowed

Unrestricted Upload of File with Dangerous Type

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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

5967 vulnerabilities reference this CWE, most recent first.

CVE-2025-49071 (GCVE-0-2025-49071)

Vulnerability from cvelistv5 – Published: 2025-06-17 15:01 – Updated: 2026-04-28 16:12
VLAI
Title
WordPress Flozen < 1.5.1 - Arbitrary File Upload Vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in NasaTheme Flozen flozen-theme allows Upload a Web Shell to a Web Server.This issue affects Flozen: from n/a through < 1.5.1.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
NasaTheme Flozen Affected: 0 , ≤ 1.5.1 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:40
Credits
Phat RiO | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2025-49060 (GCVE-0-2025-49060)

Vulnerability from cvelistv5 – Published: 2025-10-22 14:32 – Updated: 2026-04-28 20:20
VLAI
Title
WordPress Wastia theme < 1.1.3 - Arbitrary File Upload vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in CMSSuperHeroes Wastia wastia allows Upload a Web Shell to a Web Server.This issue affects Wastia: from n/a through < 1.1.3.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
CMSSuperHeroes Wastia Affected: 0 , ≤ 1.1.3 (custom)
Create a notification for this product.
Date Public
2026-04-01 15:58
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2025-48953 (GCVE-0-2025-48953)

Vulnerability from cvelistv5 – Published: 2025-06-03 18:19 – Updated: 2025-06-03 18:31
VLAI
Title
Umbraco Vulnerable to By-Pass of Configured Allowed Extensions for File Uploads
Summary
Umbraco is an ASP.NET content management system (CMS). Starting in version 14.0.0 and prior to versions 15.4.2 and 16.0.0, it's possible to upload a file that doesn't adhere with the configured allowable file extensions via a manipulated API request. The issue is patched in versions 15.4.2 and 16.0.0. No known workarounds are available.
Severity
5.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
umbraco Umbraco-CMS Affected: >= 14.0.0, < 15.4.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-48889 (GCVE-0-2025-48889)

Vulnerability from cvelistv5 – Published: 2025-05-30 06:12 – Updated: 2025-05-30 12:25
VLAI
Title
Gradio Allows Unauthorized File Copy via Path Manipulation
Summary
Gradio is an open-source Python package that allows quick building of demos and web application for machine learning models, API, or any arbitrary Python function. Prior to version 5.31.0, an arbitrary file copy vulnerability in Gradio's flagging feature allows unauthenticated attackers to copy any readable file from the server's filesystem. While attackers can't read these copied files, they can cause DoS by copying large files (like /dev/urandom) to fill disk space. This issue has been patched in version 5.31.0.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
gradio-app gradio Affected: < 5.31.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2025-48782 (GCVE-0-2025-48782)

Vulnerability from cvelistv5 – Published: 2025-06-06 09:24 – Updated: 2025-06-06 15:52
VLAI
Title
Soar Cloud HRD Human Resource Management System - Unrestricted Upload of File with Dangerous Type
Summary
An unrestricted upload of file with dangerous type vulnerability in the upload file function of Soar Cloud HRD Human Resource Management System through version 7.3.2025.0408 allows remote attackers to execute arbitrary system commands via a malicious file.
Severity
9.9 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
URL Tags
https://zuso.ai/advisory/za-2025-07 third-party-advisory
Impacted products
Date Public
2025-06-06 04:00
Show details on NVD website
To clipboard 

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CVE-2025-48471 (GCVE-0-2025-48471)

Vulnerability from cvelistv5 – Published: 2025-05-29 15:17 – Updated: 2025-05-29 15:42
VLAI
Title
FreeScout Vulnerable to Arbitrary File Upload
Summary
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.179, the application does not check or performs insufficient checking of files uploaded to the application. This allows files to be uploaded with the phtml and phar extensions, which can lead to remote code execution if the Apache web server is used. This issue has been patched in version 1.8.179.
Severity
7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2025-48396 (GCVE-0-2025-48396)

Vulnerability from cvelistv5 – Published: 2025-11-03 07:57 – Updated: 2025-11-04 10:44
VLAI
Summary
Arbitrary code execution is possible due to improper validation of the file upload functionality in Eaton BLSS. This security issue has been fixed in the latest script patch latest version of of Eaton BLSS (7.3.0.SCP004).
Severity
8.3 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Eaton Eaton Brightlayer Software Suite (BLSS) Affected: 0 , ≤ 7.3.x (custom)
Create a notification for this product.
Date Public
2025-11-03 07:16
Credits
Lang Khuong Duy (JuyLang) - Viettel IDC
Show details on NVD website
To clipboard 

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CVE-2025-48300 (GCVE-0-2025-48300)

Vulnerability from cvelistv5 – Published: 2025-07-16 11:28 – Updated: 2026-04-28 16:12
VLAI
Title
WordPress Groundhogg plugin <= 4.2.1 - Arbitrary File Upload vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in Adrian Tobey Groundhogg groundhogg allows Upload a Web Shell to a Web Server.This issue affects Groundhogg: from n/a through <= 4.2.1.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Adrian Tobey Groundhogg Affected: 0 , ≤ 4.2.1 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:40
Credits
63n0 | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2025-48148 (GCVE-0-2025-48148)

Vulnerability from cvelistv5 – Published: 2025-08-20 08:03 – Updated: 2026-04-28 16:12
VLAI
Title
WordPress StoreKeeper for WooCommerce Plugin <= 14.4.4 - Arbitrary File Upload Vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in StoreKeeper B.V. StoreKeeper for WooCommerce storekeeper-for-woocommerce allows Using Malicious Files.This issue affects StoreKeeper for WooCommerce: from n/a through <= 14.4.4.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
StoreKeeper B.V. StoreKeeper for WooCommerce Affected: 0 , ≤ 14.4.4 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:40
Credits
theviper17 | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2025-48106 (GCVE-0-2025-48106)

Vulnerability from cvelistv5 – Published: 2025-10-22 14:32 – Updated: 2026-04-28 20:18
VLAI
Title
WordPress Clanora theme < 1.3.1 - Arbitrary File Upload vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in CMSSuperHeroes Clanora clanora allows Using Malicious Files.This issue affects Clanora: from n/a through < 1.3.1.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
CMSSuperHeroes Clanora Affected: 0 , ≤ 1.3.1 (custom)
Create a notification for this product.
Date Public
2026-04-01 15:58
Credits
Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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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.

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