CWE-434 4204 CVEs MITRE definition ↗

CWE-434: Unrestricted Upload of File with Dangerous Type

Overview

CWE-434 (Unrestricted Upload of File with Dangerous Type) documents a weakness type used across vulnerability databases and security assessments. Use the sections below for definition, context, and mapped CVEs.

Security impact
Security impact: Depends on product and context; use CVE records, severity scores, and MITRE guidance to prioritize.

Description

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

Applicable platforms

Kind Name Class Prevalence OS / CPE
language ASP.NET Sometimes
language PHP Often
language Not Language-Specific Undetermined
technology Web Server Sometimes
technology AI/ML Undetermined

Related CVEs in this database

These CVEs are mapped to this weakness in this database and kept for traceability and search.

CVE Published Summary
CVE-2026-16332 2026-07-20 A vulnerability was detected in D-Link DNS-320 1.0.2. This impacts an unknown function of the file /mydlink/multi_uploadify.php. Performing a manipulation of the argument Filedata[] results in unrestr…
CVE-2026-16331 2026-07-20 A security vulnerability has been detected in D-Link DNS-320 1.0.2. This affects an unknown function of the file /web/function/save_ajax.php. Such manipulation of the argument Malicious Handler leads …
CVE-2026-16330 2026-07-20 A weakness has been identified in D-Link DNS-320 1.0.2. The impacted element is an unknown function of the file /web/jquery/uploader/uploadify.php. This manipulation of the argument https:/ucn9h68n928…
CVE-2026-16329 2026-07-20 A vulnerability was identified in D-Link DNS-320 1.0.2. Impacted is an unknown function of the file /photo_center/php/uploadify.php. The manipulation of the argument Malicious Handler leads to unrestr…
CVE-2026-16327 2026-07-20 A vulnerability was determined in D-Link DNS-320 1.0.2. This issue affects some unknown processing of the file /web/web_file/upload.php. Executing a manipulation of the argument File can lead to unres…
CVE-2026-16324 2026-07-20 A vulnerability was identified in Metasoft 美特软件 MetaCRM up to 6.4.0 Beta06. The impacted element is an unknown function of the file /business/qnaire/upload.jsp. Such manipulation of the argument File …
CVE-2026-53593 2026-07-20 FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the denylist that neutralizes dangerous file uploads (`Helper::$restricted_extensions`) is …
CVE-2026-61900 2026-07-20 The Joomla extension JDownloads is vulnerable to an unauthenticated file upload, leading to full RCE.
CVE-2026-61424 2026-07-20 The Joomla extension DJ-Classifieds is vulnerable to an unauthenticated file upload, leading to full RCE.
CVE-2026-60032 2026-07-20 The Joomla extension JMedia is vulnerable to an authenticated arbitrary file upload, leading to RCE. Executable uploads/writes possible (incl. polyglot filenames); chmod didn't strip execute bits.
CVE-2026-63429 2026-07-20 HeyForm is an open-source form builder. Prior to version 3.0.0-rc.9, `POST /api/upload` has no authentication guard, no global guard, no form-context validation, no `openToken` requirement, and no ses…
CVE-2026-45797 2026-07-20 HeyForm is an open-source form builder. Prior to version 3.0.0-rc.7, the `/api/upload` endpoint allows unauthenticated file uploads including SVG files. Uploaded SVGs are stored in the static assets d…
CVE-2026-57311 2026-07-20 Windu CMS does not validate types of uploaded files. An authenticated attacker can upload arbitrary files, including PHP. This can lead to Remote Code Execution. Because vendor contact attempts were …
CVE-2026-16226 2026-07-19 A weakness has been identified in SourceCodester Pizzafy Ecommerce System 1.0. This affects the function save_settings of the file /admin/admin_class_novo.php. This manipulation of the argument img ca…
CVE-2026-48062 2026-07-17 CodeIgniter is a PHP full-stack web framework. Prior to 4.7.3, the ext_in upload validation rule in system/Validation/StrictRules/FileRules.php checked the MIME-derived guessed extension instead of th…
CVE-2026-36669 2026-07-17 An unauthenticated arbitrary file upload vulnerability in ck_upload_handler.php in Feng Office 3.11.13.11 allows remote attackers to upload malicious files (such as .html) to the web-accessible /tmp/ …
CVE-2026-13352 2026-07-17 The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up…
CVE-2026-12684 2026-07-16 The Customer Reviews for WooCommerce WordPress plugin before 5.113.0 does not perform authentication, capability, or nonce checks on one of its media upload AJAX actions when the review media attachme…
CVE-2026-50124 2026-07-15 DataEase is an open source data visualization and analysis tool. Prior to 2.10.23, DataEase can be exploited by uploading payload.zip through the Excel upload API /datasource/upload, creating an H2 da…
CVE-2026-61457 2026-07-15 The Grav API plugin (getgrav/grav-plugin-api) before 1.0.3 contains a file upload extension bypass in the API media controller. HandlesMediaUploads::validateFileExtension() inspects only the final fil…

Previous names

  • Unrestricted File Upload (2010-02-16)

Content submission

Name
PLOVER
Date
2006-07-19
Version
Draft 3

Content modifications

Date Name Version Importance Comment
2008-07-01 Eric Dalci 1.0 updated Time_of_Introduction
2008-09-08 CWE Content Team 1.0 updated Alternate_Terms, Relationships, Other_Notes, Taxonomy_Mappings
2009-01-12 CWE Content Team 1.2 updated Relationships
2009-12-28 CWE Content Team 1.7 updated Applicable_Platforms, Functional_Areas, Likelihood_of_Exploit, Potential_Mitigations, Time_of_Introduction
2010-02-16 CWE Content Team 1.8 Critical converted from Compound_Element to Weakness
2010-02-16 CWE Content Team 1.8 updated Alternate_Terms, Applicable_Platforms, Common_Consequences, Demonstrative_Examples, Name, Other_Notes, Potential_Mitigations, References, Related_Attack_Patterns, Relationship_Notes, Relationships, Type, Weakness_Ordinalities
2010-04-05 CWE Content Team 1.8.1 updated Related_Attack_Patterns
2010-06-21 CWE Content Team 1.9 updated References, Relationship_Notes
2010-09-27 CWE Content Team 1.10 updated Potential_Mitigations
2010-12-13 CWE Content Team 1.11 updated Potential_Mitigations
2011-06-27 CWE Content Team 2.0 updated Relationships
2011-09-13 CWE Content Team 2.1 updated Potential_Mitigations, References, Relationships
2012-05-11 CWE Content Team 2.2 updated References, Relationships
2012-10-30 CWE Content Team 2.3 updated Potential_Mitigations
2014-07-30 CWE Content Team 2.8 updated Detection_Factors
2015-12-07 CWE Content Team 2.9 updated Relationships
2017-11-08 CWE Content Team 3.0 updated Affected_Resources, Applicable_Platforms, Likelihood_of_Exploit, Modes_of_Introduction, References, Relationships, Weakness_Ordinalities
2019-01-03 CWE Content Team 3.2 updated References, Relationships, Taxonomy_Mappings
2019-06-20 CWE Content Team 3.3 updated Related_Attack_Patterns
2019-09-19 CWE Content Team 3.4 updated Relationships
2020-02-24 CWE Content Team 4.0 updated Applicable_Platforms, Potential_Mitigations
2020-06-25 CWE Content Team 4.1 updated Potential_Mitigations, Relationship_Notes
2020-08-20 CWE Content Team 4.2 updated Relationships
2020-12-10 CWE Content Team 4.3 updated Relationships
2021-03-15 CWE Content Team 4.4 updated Demonstrative_Examples
2021-07-20 CWE Content Team 4.5 updated Relationships
2021-10-28 CWE Content Team 4.6 updated Relationships
2022-04-28 CWE Content Team 4.7 updated Research_Gaps
2022-06-28 CWE Content Team 4.8 updated Relationships
2022-10-13 CWE Content Team 4.9 updated References
2023-01-31 CWE Content Team 4.10 updated Alternate_Terms, Description
2023-04-27 CWE Content Team 4.11 updated References, Relationships
2023-06-29 CWE Content Team 4.12 updated Mapping_Notes, Relationships
2024-02-29 CWE Content Team 4.14 updated Observed_Examples
2024-07-16 CWE Content Team 4.15 updated Common_Consequences, Description, Diagram, Weakness_Ordinalities
2024-11-19 CWE Content Team 4.16 updated Relationships
2025-09-09 CWE Content Team 4.18 updated Detection_Factors, References
2025-12-11 CWE Content Team 4.19 updated Relationships
2026-04-30 CWE Content Team 4.20 updated Applicable_Platforms, Relationships

Contributions

Type Name Date Comment
Content Abhi Balakrishnan 2024-02-29 Provided diagram to improve CWE usability
cvelogic Threat Intelligence