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
ageerle ruoyi-ai SseServiceImpl.java upload unrestricted upload
A vulnerability was found in ageerle ruoyi-ai 2.0.0 and classified as critical. Affected by this issue is the function speechToTextTranscriptionsV2/upload of the file ruoyi-modules/ruoyi-system/src/main/java/org/ruoyi/system/service/impl/SseServiceImpl.java. …
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Medium 6.3
Campcodes Online Recruitment Management System About Content Page ajax.php unrestricted upload
A vulnerability classified as critical was found in Campcodes Online Recruitment Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/ajax.php?action=save_settings of the component About Content Page. The manipu…
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High 7.2
Beaver Builder Plugin (Starter Version) <= 2.9.1 - Authenticated (Administrator+) Arbitrary File Upload
The Beaver Builder Plugin (Starter Version) plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_enabled_icons' function in all versions up to, and including, 2.9.1. This makes it possible for authentic…
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Medium 6.3
Teledyne FLIR AX8 upload.php unrestricted upload
A vulnerability was detected in Teledyne FLIR AX8 up to 1.46. Affected by this vulnerability is an unknown functionality of the file /upload.php. Performing manipulation of the argument File results in unrestricted upload. It is possible to initiate the attac…
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High 7.2
The Versa Director SD-WAN orchestration platform provides an option to upload various types of files. The Versa Directo…
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High 7.2CVE-2025-6220 Public exploit
Ultimate Addons for Contact Form 7 <= 3.5.12 - Authenticated (Administrator+) Arbitrary File Upload via 'save_options'
The Ultra Addons for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'save_options' function in all versions up to, and including, 3.5.12. This makes it possible for authenticated attacker…
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High 7.2
CSV Me <= 2.0 - Authenticated (Administrator+) Arbitrary File Upload
The CSV Me plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'csv_me_options_page' function in all versions up to, and including, 2.0. This makes it possible for authenticated attackers, with Administ…
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High 8.8
Pixabay Images <= 3.4 - Authenticated (Author+) Arbitrary File Upload
The Pixabay Images plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the pixabay_upload function in all versions up to, and including, 3.4. This makes it possible for authenticated attackers, with Author-level…
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Critical 9.9CVE-2025-46157 Public exploit
An issue in EfroTech Time Trax v.1.0 allows a remote attacker to execute arbitrary code via the file attachment functio…
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High 8.8
Sitecore PowerShell Extension RCE via Unrestricted Upload
Sitecore PowerShell Extensions, an add-on to Sitecore Experience Manager (XM) and Experience Platform (XP), through version 7.0 is vulnerable to an unrestricted file upload issue. A remote, authenticated attacker can upload arbitrary files to the server using…
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Critical 10.0CVE-2025-49071 Public exploit
WordPress Flozen < 1.5.1 - Arbitrary File Upload Vulnerability
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.
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Critical 10.0
WordPress Ovatheme Events Manager plugin <= 1.8.4 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in ovatheme Ovatheme Events Manager ova-events-manager allows Using Malicious Files.This issue affects Ovatheme Events Manager: from n/a through <= 1.8.4.
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Critical 9.9
WordPress WP VR plugin <= 8.5.26 - Arbitrary File Upload Vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in RexTheme WP VR wpvr allows Upload a Web Shell to a Web Server.This issue affects WP VR: from n/a through <= 8.5.26.
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Critical 9.9
WordPress MapSVG plugin < 8.7.4 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in RomanCode MapSVG mapsvg allows Upload a Web Shell to a Web Server.This issue affects MapSVG: from n/a through < 8.7.4.
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Critical 10.0
WordPress Reformer for Elementor plugin <= 1.0.5 - Arbitrary File Upload Vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in merkulove Reformer for Elementor reformer-elementor allows Upload a Web Shell to a Web Server.This issue affects Reformer for Elementor: from n/a through <= 1.0.5.
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Critical 10.0
WordPress FW Food Menu <= 6.0.0 - Arbitrary File Upload Vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in Fastw3b LLC FW Food Menu allows Using Malicious Files. This issue affects FW Food Menu : from n/a through 6.0.0.
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High 8.1
Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.8.9 - Unauthenticated Arbitrary File Upload via Insufficient Blacklist Checks
The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in all versions up to, and including, 1.3.8.9. This makes it possible for unauthenticated attackers…
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High 7.3
SourceCodester Simple Food Ordering System editproduct.php unrestricted upload
A vulnerability, which was classified as critical, was found in SourceCodester Simple Food Ordering System 1.0. Affected is an unknown function of the file /editproduct.php. The manipulation of the argument photo leads to unrestricted upload. It is possible t…
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High 7.2
File Manager Pro – Filester <= 1.8.8 - Authenticated (Administrator+) Arbitrary File Upload
The File Manager Pro – Filester plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.8.8. This makes it possible for authenticated attackers, with Administrator-level access a…
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High 8.8
Workreap <= 3.3.2 - Authenticated (Subscriber+) Arbitrary File Upload via 'workreap_temp_upload_to_media'
The Workreap plugin for WordPress, used by the Workreap - Freelance Marketplace WordPress Theme, is vulnerable to arbitrary file uploads due to missing file type validation in the 'workreap_temp_upload_to_media' function in all versions up to, and including, …
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High 7.2CVE-2025-6002 Public exploit
VirtueMart - Unrestricted File Upload
An unrestricted file upload vulnerability exists in the Product Image section of the VirtueMart backend. Authenticated attackers can upload files with arbitrary extensions, including executable or malicious files, potentially leading to remote code execution …
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High 8.8
WordPress Automatic Plugin - AI content generator and auto poster plugin <= 3.115.0 - Authenticated (Author+) Arbitrary File Upload
The WordPress Automatic Plugin plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'core.php' file in all versions up to, and including, 3.115.0. This makes it possible for authenticated attackers, with…
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High 8.8
Abandoned Cart Pro for WooCommerce <= 9.16.0 - Authenticated (Subscriber+) Arbitrary File Upload
The Abandoned Cart Pro for WooCommerce plugin contains an authenticated arbitrary file upload vulnerability due to missing file type validation in the wcap_add_to_cart_popup_upload_files function in all versions up to, and including, 9.16.0. This makes it pos…
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High 7.2
The Panel Designer dashboard in Airleader Master and Easy before 6.36 allows remote attackers to execute arbitrary comm…
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Critical 10.0
WordPress SUMO Affiliates Pro plugin < 11.1.0 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in FantasticPlugins SUMO Affiliates Pro affs allows Using Malicious Files.This issue affects SUMO Affiliates Pro: from n/a through < 11.1.0.
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Medium 6.3
eCharge Hardy Barth Salia PLCC Web UI firmware.php unrestricted upload
A vulnerability was detected in eCharge Hardy Barth Salia PLCC up to 2.3.81. Affected by this issue is some unknown functionality of the file /firmware.php of the component Web UI. Performing a manipulation of the argument media results in unrestricted upload…
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Critical 9.6
Remote Code Execution
Zohocorp ManageEngine Exchange Reporter Plus versions 5721 and prior are vulnerable to Remote code execution in the Content Search module.
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High 7.3CVE-2025-5840 Public exploit
SourceCodester Client Database Management System user_update_customer_order.php unrestricted upload
A vulnerability, which was classified as critical, was found in SourceCodester Client Database Management System 1.0. This affects an unknown part of the file /user_update_customer_order.php. The manipulation of the argument uploaded_file leads to unrestricte…
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Medium 6.6
WordPress Store Locator WordPress plugin <= 1.5.2 - Arbitrary File Upload Vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in Agile Logix Store Locator WordPress agile-store-locator allows Upload a Web Shell to a Web Server.This issue affects Store Locator WordPress: from n/a through <= 1.5.2.
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Critical 9.9
Soar Cloud HRD Human Resource Management System - Unrestricted Upload of File with Dangerous Type
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.
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Medium 6.3
SourceCodester Open Source Clinic Management System manage_website.php unrestricted upload
A vulnerability classified as critical was found in SourceCodester Open Source Clinic Management System 1.0. This vulnerability affects unknown code of the file /manage_website.php. The manipulation of the argument website_image leads to unrestricted upload. …
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High 8.8CVE-2025-3054 Public exploit
WP User Frontend Pro <= 4.1.3 - Authenticated (Subscriber+) Arbitrary File Upload
The WP User Frontend Pro plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the upload_files() function in all versions up to, and including, 4.1.3. This makes it possible for authenticated attackers, with Subs…
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High 8.2CVE-2025-29093 Public exploit
File Upload vulnerability in Motivian Content Mangment System v.41.0.0 allows a remote attacker to execute arbitrary co…
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Medium 5.5
Umbraco Vulnerable to By-Pass of Configured Allowed Extensions for File Uploads
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 issu…
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Medium 6.4
Bit File Manager – 100% Free & Open Source File Manager and Code Editor for WordPress <= 6.7 - Authenticated (Subscriber+) Stored Cross-Site Scripting via SVG File Uploads
The Bit File Manager – 100% Free & Open Source File Manager and Code Editor for WordPress plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 6.7 due to insufficient input sanitization a…
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Medium 5.4
Erupt Unrestricted Upload of File with Dangerous Type vulnerability
An arbitrary file upload vulnerability in the component /upload/GoodsCategory/image of erupt v1.12.19 allows attackers to execute arbitrary code via uploading a crafted file.
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Medium 6.8CVE-2024-7074 EPSS 18%
Authenticated Arbitrary File Upload in Multiple WSO2 Products via SOAP Admin Service Leading to Remote Code Execution
An arbitrary file upload vulnerability exists in multiple WSO2 products due to improper validation of user input in SOAP admin services. A malicious actor with administrative privileges can upload an arbitrary file to a user-controlled location on the server.…
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Medium 6.3
chaitak-gorai Blogbook posts.php unrestricted upload
A vulnerability, which was classified as critical, was found in chaitak-gorai Blogbook up to 92f5cf90f8a7e6566b576fe0952e14e1c6736513. Affected is an unknown function of the file /admin/posts.php?source=add_post. The manipulation of the argument image leads t…
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Medium 5.3
Gradio Allows Unauthorized File Copy via Path Manipulation
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 allo…
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High 7.0
FreeScout Vulnerable to Arbitrary File Upload
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,…