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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Critical 10.0
WordPress TerraClassifieds Plugin <= 2.0.3 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Pixelemu TerraClassifieds – Simple Classifieds Plugin.This issue affects TerraClassifieds – Simple Classifieds Plugin: from n/a through 2.0.3.
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Critical 10.0
WordPress WP MLM Unilevel Plugin <= 4.0 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in IOSS WP MLM SOFTWARE PLUGIN.This issue affects WP MLM SOFTWARE PLUGIN: from n/a through 4.0.
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Medium 4.7
gopeak MasterLab User.php update unrestricted upload
A vulnerability was found in gopeak MasterLab up to 3.3.10. It has been declared as critical. Affected by this vulnerability is the function add/update of the file app/ctrl/admin/User.php. The manipulation of the argument avatar leads to unrestricted upload. …
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Medium 4.7
Campcodes Chic Beauty Salon Product product-list.php unrestricted upload
A vulnerability classified as critical was found in Campcodes Chic Beauty Salon 20230703. Affected by this vulnerability is an unknown functionality of the file product-list.php of the component Product Handler. The manipulation leads to unrestricted upload. …
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Medium 6.3
gopeak MasterLab User.php base64ImageContent unrestricted upload
A vulnerability, which was classified as critical, was found in gopeak MasterLab up to 3.3.10. Affected is the function base64ImageContent of the file app/ctrl/User.php. The manipulation of the argument image leads to unrestricted upload. It is possible to la…
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High 8.8
File Upload vulnerability in JIZHICMS v.2.5, allows remote attacker to execute arbitrary code via a crafted file upload…
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Medium 6.3
Dreamer CMS uploadFile unrestricted upload
A vulnerability was found in Dreamer CMS 4.1.3. It has been declared as problematic. This vulnerability affects unknown code of the file /upload/uploadFile. The manipulation of the argument file leads to unrestricted upload. The attack can be initiated remote…
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High 8.0
IBM Planning Analytics file upload
IBM Planning Analytics Local 2.0 could allow a remote attacker to upload arbitrary files, caused by the improper validation of file extensions. By sending a specially crafted HTTP request, a remote attacker could exploit this vulnerability to upload a malicio…
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Medium 5.5
PHPGurukul Online Notes Sharing System add-notes.php unrestricted upload
A vulnerability was found in PHPGurukul Online Notes Sharing System 1.0. It has been rated as problematic. This issue affects some unknown processing of the file /user/add-notes.php. The manipulation leads to unrestricted upload. The attack may be initiated r…
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High 8.8
TOTOlink EX1200L V9.3.5u.6146_B20201023 is vulnerable to arbitrary command execution via the cstecgi.cgi UploadFirmware…
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Medium 4.7
automad Content Type FileCollectionController.php upload unrestricted upload
A vulnerability was found in automad up to 1.10.9. It has been classified as problematic. This affects the function upload of the file FileCollectionController.php of the component Content Type Handler. The manipulation leads to unrestricted upload. It is pos…
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Medium 6.5
WordPress Drag and Drop Multiple File Upload for WooCommerce Plugin <= 1.0.8 is vulnerable to Multiple Vulnerabilities
Unrestricted Upload of File with Dangerous Type vulnerability in Glen Don L. Mongaya Drag and Drop Multiple File Upload for WooCommerce.This issue affects Drag and Drop Multiple File Upload for WooCommerce: from n/a through 1.0.8.
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Medium 4.3
Lightxun IPTV Gateway web_upload_template.html unrestricted upload
A vulnerability was found in Lightxun IPTV Gateway up to 20231208. It has been rated as problematic. This issue affects some unknown processing of the file /ZHGXTV/index.php/admin/index/web_upload_template.html. The manipulation of the argument file leads to …
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Critical 9.9
WordPress Corsa Theme <= 1.5 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in WooRockets Corsa.This issue affects Corsa: from n/a through 1.5.
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Critical 10.0
WordPress Zendrop – Global Dropshipping Plugin <= 1.0.0 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Zendrop Zendrop – Global Dropshipping.This issue affects Zendrop – Global Dropshipping: from n/a through 1.0.0.
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Critical 9.1
WordPress Theme Demo Import Plugin <= 1.1.1 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Themely Theme Demo Import.This issue affects Theme Demo Import: from n/a through 1.1.1.
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Critical 9.1
WordPress Olive One Click Demo Import Plugin <= 1.1.1 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Olive Themes Olive One Click Demo Import.This issue affects Olive One Click Demo Import: from n/a through 1.1.1.
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Critical 10.0CVE-2023-29384 Public exploit
WordPress WordPress Job Board and Recruitment Plugin – JobWP Plugin <= 2.0 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in HM Plugin WordPress Job Board and Recruitment Plugin – JobWP.This issue affects WordPress Job Board and Recruitment Plugin – JobWP: from n/a through 2.0.
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Critical 9.9
WordPress Dropshipping & Affiliation with Amazon Plugin <= 2.1.2 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in AmaderCode Lab Dropshipping & Affiliation with Amazon.This issue affects Dropshipping & Affiliation with Amazon: from n/a through 2.1.2.
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Critical 9.9
WordPress Unlimited Elements For Elementor (Free Widgets, Addons, Templates) Plugin <= 1.5.65 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Unlimited Elements Unlimited Elements For Elementor (Free Widgets, Addons, Templates).This issue affects Unlimited Elements For Elementor (Free Widgets, Addons, Templates): from n/a through 1.5.…
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Critical 9.9
WordPress WooCommerce Follow-Up Emails Plugin <= 4.9.40 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in WooCommerce AutomateWoo.This issue affects AutomateWoo: from n/a through 4.9.40.
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Critical 9.9
WordPress Download Monitor Plugin <= 4.8.3 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in WPChill Download Monitor.This issue affects Download Monitor: from n/a through 4.8.3.
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Critical 9.9
WordPress Export Import Menus Plugin <= 1.8.0 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Akshay Menariya Export Import Menus.This issue affects Export Import Menus: from n/a through 1.8.0.
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Critical 9.1
WordPress Folders Plugin <= 2.9.2 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Premio Folders – Unlimited Folders to Organize Media Library Folder, Pages, Posts, File Manager.This issue affects Folders – Unlimited Folders to Organize Media Library Folder, Pages, Posts, Fil…
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Critical 9.0
WordPress User Submitted Posts Plugin <= 20230902 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Jeff Starr User Submitted Posts – Enable Users to Submit Posts from the Front End.This issue affects User Submitted Posts – Enable Users to Submit Posts from the Front End: from n/a through 2023…
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Critical 9.9
WordPress Themify Ultra Theme <= 7.3.5 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Themify Themify Ultra.This issue affects Themify Ultra: from n/a through 7.3.5.
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High 8.4
WordPress Slider Revolution Plugin <= 6.6.15 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in ThemePunch OHG Slider Revolution.This issue affects Slider Revolution: from n/a through 6.6.15.
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Critical 9.1
WordPress Symbiostock Lite Plugin <= 6.0.0 is vulnerable to Arbitrary File Upload
Unrestricted Upload of File with Dangerous Type vulnerability in Symbiostock symbiostock.This issue affects Symbiostock: from n/a through 6.0.0.
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High 8.8
Unrestricted Upload of File with Dangerous Type
This vulnerability is capable of writing arbitrary files into arbitrary locations on the remote filesystem in the context of the server process.
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Medium 6.6
IBM Security Guardium Key Lifecycle Manager file upload
IBM Security Guardium Key Lifecycle Manager 4.3 could allow an authenticated user to upload files of a dangerous file type. IBM X-Force ID: 271341.
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Medium 5.5
codelyfe Stupid Simple CMS upload.php unrestricted upload
A vulnerability has been found in codelyfe Stupid Simple CMS up to 1.2.4 and classified as critical. This vulnerability affects unknown code of the file /file-manager/upload.php. The manipulation of the argument file leads to unrestricted upload. The exploit …
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Medium 6.3
saysky ForestBlog Image Upload img unrestricted upload
A vulnerability classified as critical has been found in saysky ForestBlog up to 20220630. This affects an unknown part of the file /admin/upload/img of the component Image Upload Handler. The manipulation of the argument filename leads to unrestricted upload…
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Medium 6.3
kalcaddle KodExplorer API Endpoint unrestricted upload
A vulnerability was found in kalcaddle KodExplorer up to 4.51.03. It has been declared as critical. This vulnerability affects unknown code of the file /index.php?pluginApp/to/yzOffice/getFile of the component API Endpoint Handler. The manipulation of the arg…
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High 8.8
Kaifa Technology WebITR - Arbitrary File Upload
Kaifa Technology WebITR is an online attendance system, its file uploading function does not restrict upload of file with dangerous type. A remote attacker with regular user privilege can exploit this vulnerability to upload arbitrary files to perform arbitra…
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Critical 9.8
SmartStar Software CWS Web-Base - Arbitrary File Upload
SmartStar Software CWS is a web-based integration platform, its file uploading function does not restrict upload of file with dangerous type. An unauthenticated remote attacker can exploit this vulnerability to upload arbitrary files to perform arbitrary comm…
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High 7.5
Essential Real Estate <= 4.3.5 - Authenticated (Subscriber+) Arbitrary File Upload
The Essential Real Estate plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the 'ajaxUploadFonts' function in versions up to, and including, 4.3.5. This makes it possible for authenticated attackers with …
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High 7.2
E2Pdf <= 1.20.25 - Authenticated (Administrator+) Arbitrary File Upload
The E2Pdf plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the 'import_action' function in versions up to, and including, 1.20.25. This makes it possible for authenticated attackers with a role that the …
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Critical 9.8
ITPison OMICARD EDM 's SMS - Arbitrary File Upload
ITPison OMICARD EDM’s file uploading function does not restrict upload of file with dangerous type. An unauthenticated remote attacker can exploit this vulnerability to upload and run arbitrary executable files to perform arbitrary system commands or disrupt …
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High 8.8
An arbitrary file upload vulnerability in the component /inc/modules_install.php of Pluck-CMS v4.7.18 allows attackers …
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Medium 5.5
PAN-OS: File Upload Vulnerability in the Web Interface
An arbitrary file upload vulnerability in Palo Alto Networks PAN-OS software enables an authenticated read-write administrator with access to the web interface to disrupt system processes and potentially execute arbitrary code with limited privileges on the f…