Weakness (CWE)
CWE-434: Unrestricted Upload of File with Dangerous Type
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
How to prevent it (8 mitigations)
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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]
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Architecture and Design
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.
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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]
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Implementation
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.
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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.
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Implementation
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]
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Implementation
When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
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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.
Source: MITRE CWE-434
3,441 results · Feed
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Medium 6.3
SourceCodester Web-based Pharmacy Product Management System Create User Page add-admin.php unrestricted upload
A vulnerability was found in SourceCodester Web-based Pharmacy Product Management System 1.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /add-admin.php of the component Create User Page. The manipu…
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High 8.8
Woffice Core <= 5.4.21 - Authenticated (Subscriber+) Arbitrary File Upload
The Woffice Core plugin for WordPress, used by the Woffice Theme, is vulnerable to arbitrary file uploads due to missing file type validation in the 'saveFeaturedImage' function in all versions up to, and including, 5.4.21. This makes it possible for authenti…
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High 7.2
Booster for WooCommerce 4.0.1 - 7.2.4 - Unauthenticated Stored Cross-Site Scripting
The Booster for WooCommerce plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in versions 4.0.1 to 7.2.4 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to i…
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High 8.1
Booster for WooCommerce 4.0.1 - 7.2.4 - Unauthenticated Arbitrary File Upload
The Booster for WooCommerce plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the validate_product_input_fields_on_add_to_cart function in versions 4.0.1 to 7.2.4. This makes it possible for unauthenticated at…
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Medium 5.0
Projeqtor saveAttachment.php unrestricted upload
A vulnerability was found in Projeqtor up to 12.0.2. It has been rated as critical. Affected by this issue is some unknown functionality of the file /tool/saveAttachment.php. The manipulation of the argument attachmentFiles leads to unrestricted upload. The a…
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Medium 4.7
WonderCMS Theme Installation/Plugin Installation installUpdateModuleAction unrestricted upload
A vulnerability, which was classified as critical, has been found in WonderCMS 3.5.0. Affected by this issue is the function installUpdateModuleAction of the component Theme Installation/Plugin Installation. The manipulation leads to unrestricted upload. The …
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Critical 9.8
Front-End-Only-Users <= 3.2.32 - Unauthenticated Arbitrary File Upload
The Front End Users plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the file uploads field of the registration form in all versions up to, and including, 3.2.32. This makes it possible for unauthenticated at…
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Medium 4.7
Dell Wyse Management Suite, versions prior to WMS 5.1, contains an Unrestricted Upload of File with Dangerous Type vuln…
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High 8.8
WP Pro Real Estate 7 <= 3.5.4 - Authenticated (Custom) Arbitrary File Upload
The Real Estate 7 WordPress theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation via the 'template-submit-listing.php' file in all versions up to, and including, 3.5.4. This makes it possible for authenticated attack…
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High 8.8
Import Export Suite for CSV and XML Datafeed <= 7.19 - Authenticated (Subscriber+) Arbitrary File Upload
The Import Export Suite for CSV and XML Datafeed plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the import_single_post_as_csv() function in all versions up to, and including, 7.19. This makes it possible fo…
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Medium 6.3
Project Worlds Online Time Table Generator updateprofile.php unrestricted upload
A vulnerability classified as critical was found in Project Worlds Online Time Table Generator 1.0. This vulnerability affects unknown code of the file /student/updateprofile.php. The manipulation of the argument pic leads to unrestricted upload. The attack c…
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Medium 6.3
Project Worlds Online Time Table Generator updatestudent.php unrestricted upload
A vulnerability classified as critical has been found in Project Worlds Online Time Table Generator 1.0. This affects an unknown part of the file /admin/updatestudent.php. The manipulation of the argument pic leads to unrestricted upload. It is possible to in…
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Medium 6.3
Project Worlds Online Time Table Generator add_student.php unrestricted upload
A vulnerability was found in Project Worlds Online Time Table Generator 1.0. It has been rated as critical. Affected by this issue is some unknown functionality of the file /admin/add_student.php. The manipulation of the argument pic leads to unrestricted upl…
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Medium 6.6
WordPress Appointify plugin <= 1.0.8 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in appointify Appointify appointify allows Upload a Web Shell to a Web Server.This issue affects Appointify: from n/a through <= 1.0.8.
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Medium 6.3
WCMS Article Publishing Page CKEditor unrestricted upload
A vulnerability was found in WCMS 11. It has been rated as critical. Affected by this issue is some unknown functionality of the file /index.php?articleadmin/upload/?&CKEditor=container&CKEditorFuncNum=1 of the component Article Publishing Page. The manipulat…
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Medium 6.3
code-projects College Management System student.php unrestricted upload
A vulnerability, which was classified as critical, was found in code-projects College Management System 1.0. This affects an unknown part of the file /Admin/student.php. The manipulation of the argument profile_image leads to unrestricted upload. It is possib…
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Medium 6.3
Bluestar Micro Mall api.php unrestricted upload
A vulnerability classified as critical was found in Bluestar Micro Mall 1.0. Affected by this vulnerability is an unknown functionality of the file /api/api.php?mod=upload&type=1. The manipulation of the argument File leads to unrestricted upload. The attack …
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High 8.8CVE-2025-2249 Public exploit
SoJ Soundslides <= 1.2.2 - Authenticated (Contributor+) Arbitrary File Upload
The SoJ SoundSlides plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the soj_soundslides_options_subpanel() function in all versions up to, and including, 1.2.2. This makes it possible for authenticated attac…
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High 8.8
Inline Image Upload for BBPress <= 1.1.19 - Authenticated (Subscriber+) Arbitrary File Upload
The Inline Image Upload for BBPress plugin for WordPress is vulnerable to arbitrary file uploads due to missing file extension validation in the file uploading functionality in all versions up to, and including, 1.1.19. This makes it possible for authenticate…
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Critical 9.8
InvoicePlane (all versions tested as of December 2024) v.1.6.11 and before contains a remote code execution vulnerabili…
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Medium 6.6
Unrestricted Fileupload
There is a risk of unauthorized file uploads in GT-SoftControl and potential file overwrites due to insufficient validation in the file selection process. This could lead to data integrity issues and unauthorized access by an authenticated privileged user.
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Medium 6.3
Digiwin ERP UploadAjaxAPI.ashx unrestricted upload
A vulnerability classified as critical was found in Digiwin ERP 5.0.1. Affected by this vulnerability is an unknown functionality of the file /Api/TinyMce/UploadAjaxAPI.ashx. The manipulation of the argument File leads to unrestricted upload. The attack can b…
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Medium 6.1
Kentico Xperience stored cross-site scripting in multiple-file upload functionality
The Kentico Xperience application does not fully validate or filter files uploaded via the multiple-file upload functionality, which allows for stored XSS.This issue affects Kentico Xperience through 13.0.178.
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High 7.2CVE-2025-2749 Exploited
Kentico Xperience <= 13.0.178 Staging Media File Upload Authenticated RCE
An authenticated remote code execution in Kentico Xperience allows authenticated users Staging Sync Server to upload arbitrary data to path relative locations. This results in path traversal and arbitrary file upload, including content that can be executed se…
KEV Apr 20, 2026 -
High 7.3
Digiwin ERP FileUploadApi.ashx DoWebUpload unrestricted upload
A vulnerability classified as critical has been found in Digiwin ERP 5.1. Affected is the function DoUpload/DoWebUpload of the file /Api/FileUploadApi.ashx. The manipulation of the argument File leads to unrestricted upload. It is possible to launch the attac…
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Medium 6.3
Softwin WMX3 ImageAdd.ashx ImageAdd unrestricted upload
A vulnerability, which was classified as critical, has been found in Softwin WMX3 3.1. This issue affects the function ImageAdd of the file /ImageAdd.ashx. The manipulation of the argument File leads to unrestricted upload. The attack may be initiated remotel…
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Medium 6.3
PHPGurukul eLearning System Image index.php unrestricted upload
A vulnerability classified as critical has been found in PHPGurukul eLearning System 1.0. Affected is an unknown function of the file /user/index.php of the component Image Handler. The manipulation leads to unrestricted upload. It is possible to launch the a…
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Medium 6.3
Yue Lao Blind Box 月老盲盒 Upload.php base64image unrestricted upload
A vulnerability was found in Yue Lao Blind Box 月老盲盒 up to 4.0. It has been declared as critical. This vulnerability affects the function base64image of the file /app/controller/Upload.php. The manipulation of the argument data leads to unrestricted upload. Th…
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Medium 6.3
phplaozhang LzCMS-LaoZhangBoKeXiTong HTTP POST Request upimage.html unrestricted upload
A vulnerability was found in phplaozhang LzCMS-LaoZhangBoKeXiTong up to 1.1.4. It has been rated as critical. Affected by this issue is some unknown functionality of the file /admin/upload/upimage.html of the component HTTP POST Request Handler. The manipulat…
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Medium 6.3
SourceCodester Best Church Management Software soulwinning_crud.php unrestricted upload
A vulnerability was found in SourceCodester Best Church Management Software 1.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /admin/app/soulwinning_crud.php. The manipulation of the argument photo/p…
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High 7.2
Unrestricted File Write and Read in composiohq/composio
In composiohq/composio version 0.4.3, there is an unrestricted file write and read vulnerability in the filetools actions. Due to improper validation of file paths, an attacker can read and write files anywhere on the server, potentially leading to privilege …
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Medium 6.6
Unrestricted File Upload and Execution in parisneo/lollms-webui
In version v12 of parisneo/lollms-webui, the 'Send file to AL' function allows uploading files with various extensions, including potentially dangerous ones like .py, .sh, .bat, and more. Attackers can exploit this by uploading files with malicious content an…
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Critical 9.1
Arbitrary File Write via DuckDB SQL Injection in eosphoros-ai/db-gpt
In eosphoros-ai/db-gpt version v0.6.0, the web API `POST /api/v1/editor/chart/run` allows execution of arbitrary SQL queries without any access control. This vulnerability can be exploited by attackers to perform Arbitrary File Write, enabling them to write a…
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Critical 9.1
Arbitrary File Write/Overwrite in lightning-ai/pytorch-lightning
In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the `LightningApp` when running on a Windows host. The vulnerability occurs at the `/api/v1/upload_file/` endpoint, allowing an attacker to write or overwrite arbitrary files by provid…
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Critical 9.8
An arbitrary file upload vulnerability in the Client Profile Update section of Mart Developers iBanking v2.0.0 allows a…
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Critical 9.8CVE-2025-2512 Public exploit
File Away <= 3.9.9.0.1 - Missing Authorization to Unauthenticated File Upload via upload Function
The File Away plugin for WordPress is vulnerable to arbitrary file uploads due to a missing capability check and missing file type validation in the upload() function in all versions up to, and including, 3.9.9.0.1. This makes it possible for unauthenticated …
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Medium 4.7
IBM Security ReaQta file upload
IBM Security ReaQta 3.12 allows a privileged user to upload or transfer files of dangerous types that can be automatically processed within the product's environment.
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Medium 6.3
An arbitrary file upload vulnerability in the component /admin/template.php of emlog pro 2.5.0 and pro 2.5.* allows att…
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High 8.6
GLPI allows authenticated remote code execution
GLPI is a free asset and IT management software package. An authenticated user can upload and force the execution of *.php files located on the GLPI server. This vulnerability is fixed in 10.0.18.
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High 8.7
Unrestricted file upload vulnerability in Softdial Contact Center
Unrestricted file upload to Softdial Contact Center of Sytel Ltd. This vulnerability could allow an attacker to upload files to the server via the ‘/softdial/phpconsole/upload.php’ endpoint, which is protected by basic HTTP authentication. The files are uploa…