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
936 results · Clear filters · Feed
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Medium 6.3
File upload vulnerability in HCL Technologies Ltd. Unica 12.0.0.
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Medium 4.7
code-projects Online Bidding System addcategory.php categoryadd unrestricted upload
A weakness has been identified in code-projects Online Bidding System 1.0. This issue affects the function categoryadd of the file /administrator/addcategory.php. This manipulation of the argument catimage causes unrestricted upload. The attack is possible to…
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Medium 6.3
projectworlds can pass malicious payloads add_book.php unrestricted upload
A security flaw has been discovered in projectworlds can pass malicious payloads up to 1.0. This vulnerability affects unknown code of the file /add_book.php. The manipulation of the argument image results in unrestricted upload. The attack can be executed re…
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Medium 6.3
ashraf-kabir travel-agency customer_register.php unrestricted upload
A weakness has been identified in ashraf-kabir travel-agency up to 1f25aa03544bc5fb7a9e846f8a7879cecdb0cad3. Affected is an unknown function of the file /customer_register.php. Executing manipulation can lead to unrestricted upload. It is possible to launch t…
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Medium 4.7
Campcodes Retro Basketball Shoes Online Store admin_product.php unrestricted upload
A flaw has been found in Campcodes Retro Basketball Shoes Online Store 1.0. The impacted element is an unknown function of the file /admin/admin_product.php. Executing a manipulation of the argument product_image can lead to unrestricted upload. The attack ma…
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Medium 4.7
Campcodes Retro Basketball Shoes Online Store admin_football.php unrestricted upload
A vulnerability was found in Campcodes Retro Basketball Shoes Online Store 1.0. Affected by this vulnerability is an unknown functionality of the file /admin/admin_football.php. Performing a manipulation of the argument product_image results in unrestricted u…
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Medium 6.9
AudioCodes Fax/IVR Appliance <= 2.6.23 Unauthenticated Prompt File Upload via ajaxPromptUploadFile.php
AudioCodes Fax Server and Auto-Attendant IVR appliances versions up to and including 2.6.23 include a web administration component (F2MAdmin) that exposes an unauthenticated prompt upload endpoint at AudioCodes_files/utils/IVR/diagram/ajaxPromptUploadFile.php…
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Medium 6.9
eGovFramework <= 4.3.1 Unauthenticated File Upload via Web Editor Image Upload Endpoints
eGovFramework/egovframe-common-components versions up to and including 4.3.1 contain an unauthenticated file upload vulnerability via the /utl/wed/insertImage.do and /utl/wed/insertImageCk.do image upload endpoints. These controllers accept multipart requests…
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Medium 4.7
Iqbolshoh php-business-website about.php unrestricted upload
A security vulnerability has been detected in Iqbolshoh php-business-website up to 10677743a8dfc281f85291a27cf63a0bce043c24. This affects an unknown part of the file /admin/about.php. The manipulation leads to unrestricted upload. It is possible to initiate t…
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Medium 6.3
Jiusi OA OfficeServer unrestricted upload
A security vulnerability has been detected in Jiusi OA up to 20251102. This affects an unknown function of the file /OfficeServer?isAjaxDownloadTemplate=false of the component OfficeServer Interface. Such manipulation of the argument FileData leads to unrestr…
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Medium 6.3
Bdtask Flight Booking Software Edit Profile edit unrestricted upload
A weakness has been identified in Bdtask Flight Booking Software 4. Affected by this vulnerability is an unknown functionality of the file /agent/profile/edit of the component Edit Profile Page. This manipulation causes unrestricted upload. The attack may be …
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Medium 4.7
DouPHP file.class.php unrestricted upload
A vulnerability has been found in DouPHP up to 1.8 Release 20251022. This impacts an unknown function of the file upload/include/file.class.php. The manipulation of the argument File leads to unrestricted upload. Remote exploitation of the attack is possible.…
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Medium 4.7
Bdtask/CodeCanyon News365 profile unrestricted upload
A security flaw has been discovered in Bdtask/CodeCanyon News365 up to 7.0.3. This affects an unknown function of the file /admin/dashboard/profile. The manipulation of the argument profile_image/banner_image results in unrestricted upload. The attack can be …
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Medium 6.8
A vulnerability was found in Alaga Home Security WiFi Camera 3K (model S-CW2503C-H) with hardware version V03 and firmw…
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Medium 6.3
itsourcecode Online Voting System index.php unrestricted upload
A vulnerability was detected in itsourcecode Online Voting System 1.0. This impacts an unknown function of the file /index.php?page=manage_voting. Performing manipulation results in unrestricted upload. The attack is possible to be carried out remotely. The e…
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Medium 6.3
projectworlds Online Notes Sharing Platform userprofile.php unrestricted upload
A vulnerability was identified in projectworlds Online Notes Sharing Platform 1.0. Affected by this issue is some unknown functionality of the file /dashboard/userprofile.php. Such manipulation of the argument image leads to unrestricted upload. The attack ma…
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Medium 5.3
ThinkDashboard: Arbitrary File Upload vulnerability in the Backup Import Feature
ThinkDashboard is a self-hosted bookmark dashboard built with Go and vanilla JavaScript. In versions 0.6.7 and below, an attacker can upload any file they wish to the /data directory of the web application via the backup import feature. When importing a backu…
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Medium 4.8
WordPress Atarim plugin <= 4.2.1 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in Vito Peleg Atarim atarim-visual-collaboration allows Using Malicious Files.This issue affects Atarim: from n/a through <= 4.2.1.
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Medium 6.5
Cisco Unified Contact Center Express Arbitrary File Upload Vulnerability
A vulnerability in the web UI of Cisco Unified CCX could allow an authenticated, remote attacker to upload and execute arbitrary files. This vulnerability is due to an insufficient input validation associated to specific UI features. An attacker could exploit…
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Medium 6.5
Cisco Unified Contact Center Express Remote Code Execution Vulnerability
A vulnerability in the web UI of Cisco Unified CCX could allow an authenticated, remote attacker to upload and execute arbitrary files. This vulnerability is due to an insufficient input validation associated to file upload mechanisms. An attacker could explo…
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Medium 6.7
Authenticated Arbitrary File Upload in Multiple WSO2 Products via CarbonAppUploader Admin Service Leading to Remote Code Execution
An arbitrary file upload vulnerability exists in multiple WSO2 products due to improper input validation in the CarbonAppUploader admin service endpoint. An authenticated attacker with appropriate privileges can upload a malicious file to a user-controlled lo…
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Medium 4.7
code-projects Simple Online Hotel Reservation System Photo edit_room.php unrestricted upload
A vulnerability was identified in code-projects Simple Online Hotel Reservation System 2.0. The impacted element is an unknown function of the file /admin/edit_room.php of the component Photo Handler. The manipulation leads to unrestricted upload. The attack …
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Medium 4.3
DNN CKEditor Provider allows unauthenticated upload out-of-the-box
DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. Prior to 10.1.1, the out-of-box experience for HTML editing allows unauthenticated users to upload files. This opens a potential vector to other secu…
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Medium 6.3
MaxSite CMS save-file-ajax.php unrestricted upload
A flaw has been found in MaxSite CMS up to 109. This issue affects some unknown processing of the file application/maxsite/admin/plugins/editor_files/save-file-ajax.php. Executing manipulation of the argument file_path/content can lead to unrestricted upload.…
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Medium 6.3
MaxSite CMS HTTP Header uploads-require-maxsite.php unrestricted upload
A vulnerability was detected in MaxSite CMS up to 109. This vulnerability affects unknown code of the file application/maxsite/admin/plugins/auto_post/uploads-require-maxsite.php of the component HTTP Header Handler. Performing manipulation of the argument X-…
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Medium 6.3
Yonyou U8 Cloud Request Header NCloudGatewayServlet unrestricted upload
A vulnerability has been found in Yonyou U8 Cloud up to 5.1sp. The impacted element is an unknown function of the file /service/NCloudGatewayServlet of the component Request Header Handler. Such manipulation of the argument ts/sign leads to unrestricted uploa…
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Medium 4.7
Willow CMS add unrestricted upload
A weakness has been identified in Willow CMS up to 1.4.0. Impacted is an unknown function of the file /admin/images/add. This manipulation causes unrestricted upload. Remote exploitation of the attack is possible. The exploit has been made available to the pu…
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Medium 4.7
ashymuzuro Full-Ecommece-Website/Muzuro Ecommerce System Add Product index.php unrestricted upload
A vulnerability was found in ashymuzuro Full-Ecommece-Website and Muzuro Ecommerce System up to 1.1.0. This affects an unknown part of the file /admin/index.php?add_product of the component Add Product Page. The manipulation results in unrestricted upload. Th…
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Medium 6.3
LearnHouse Course Thumbnail courses unrestricted upload
A vulnerability has been found in LearnHouse up to 98dfad76aad70711a8113f6c1fdabfccf10509ca. Impacted is an unknown function of the file /api/v1/courses/ of the component Course Thumbnail Handler. The manipulation of the argument thumbnail leads to unrestrict…
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Medium 6.3
Bdtask Flight Booking Software Package Information package-information unrestricted upload
A vulnerability was detected in Bdtask Flight Booking Software up to 3.1. This affects an unknown part of the file /b2c/package-information of the component Package Information Module. The manipulation results in unrestricted upload. The attack can be launche…
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Medium 6.3
Bdtask Flight Booking Software Deposit deposit unrestricted upload
A security vulnerability has been detected in Bdtask Flight Booking Software up to 3.1. Affected by this issue is some unknown functionality of the file /admin/transaction/deposit of the component Deposit Handler. The manipulation leads to unrestricted upload…
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Medium 4.7
ajayrandhawa User-Management-PHP-MYSQL User Management edit-user.php unrestricted upload
A vulnerability was identified in ajayrandhawa User-Management-PHP-MYSQL up to fedcf58797bf2791591606f7b61fdad99ad8bff1. This affects an unknown part of the file /admin/edit-user.php of the component User Management Interface. Such manipulation of the argumen…
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Medium 6.5
daicuocms V1.3.13 contains an arbitrary file upload vulnerability in the image upload feature.
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Medium 6.3
Shenzhen Ruiming Technology Streamax Crocus FileDir.do uploadFile unrestricted upload
A security flaw has been discovered in Shenzhen Ruiming Technology Streamax Crocus 1.3.40. The affected element is the function uploadFile of the file /FileDir.do?Action=Upload. Performing manipulation of the argument File results in unrestricted upload. The …
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Medium 4.7
Total.js Flow SVG File unrestricted upload
A security flaw has been discovered in Total.js Flow up to 673ef9144dd25d4f4fd4fdfda5af27f230198924. The impacted element is an unknown function of the component SVG File Handler. Performing manipulation results in unrestricted upload. The attack can be initi…
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Medium 4.7
code-projects Voting System voters_add.php unrestricted upload
A security vulnerability has been detected in code-projects Voting System 1.0. This affects an unknown function of the file /admin/voters_add.php. Such manipulation of the argument photo leads to unrestricted upload. The attack can be launched remotely. The e…
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Medium 4.7
SourceCodester Hotel and Lodge Management System manage_website.php unrestricted upload
A security vulnerability has been detected in SourceCodester Hotel and Lodge Management System up to 1.0. The impacted element is an unknown function of the file /manage_website.php. The manipulation of the argument website_image/back_login_image leads to unr…
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Medium 6.3
JhumanJ OpnForm answer unrestricted upload
A vulnerability was detected in JhumanJ OpnForm up to 1.9.3. Affected by this issue is some unknown functionality of the file /answer. The manipulation results in unrestricted upload. The attack can be launched remotely. The exploit is now public and may be u…
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Medium 6.3
projectworlds Advanced Library Management System edit_book.php unrestricted upload
A security flaw has been discovered in projectworlds Advanced Library Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /edit_book.php. The manipulation of the argument image results in unrestricted upload. It is po…
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Medium 6.3
Campcodes Advanced Online Voting Management System voters_add.php unrestricted upload
A weakness has been identified in Campcodes Advanced Online Voting Management System 1.0. This vulnerability affects unknown code of the file /admin/voters_add.php. Executing manipulation of the argument photo can lead to unrestricted upload. The attack can b…