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 9.5
Apache Struts: Mixing setters for uploaded files and normal fields can allow bypass file upload checks
File upload logic in Apache Struts is flawed. An attacker can manipulate file upload params to enable paths traversal and under some circumstances this can lead to uploading a malicious file which can be used to perform Remote Code Execution. This issue affec…
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High 7.2
OS Command Execution through Arbitrary File Upload
If the attacker has access to a valid Poweruser session, remote code execution is possible because specially crafted valid PNG files with injected PHP content can be uploaded as desktop backgrounds or lock screens. After the upload, the PHP script is availabl…
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Critical 10.0
WordPress Pie Register Premium plugin < 3.8.3.3 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in Genetech Pie Register Premium.This issue affects Pie Register Premium: from n/a before 3.8.3.3.
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High 8.0
An issue was discovered in Digi ConnectPort LTS before 1.4.12. A vulnerability in the file upload handling of a web app…
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Critical 9.8
Kashipara E-learning Management System v1.0 is vulnerable to Remote Code Execution via File Upload in /teacher_avatar.p…
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Critical 10.0
WordPress Revy plugin <= 1.18 - Unauthenticated Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in roninwp Revy revy allows Upload a Web Shell to a Web Server.This issue affects Revy: from n/a through <= 1.18.
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Medium 6.6
WordPress WDesignKit plugin <= 1.0.40 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in POSIMYTH WDesignkit wdesignkit allows Upload a Web Shell to a Web Server.This issue affects WDesignkit: from n/a through <= 1.0.40.
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High 8.8CVE-2024-10578 Public exploit
Pubnews <= 1.0.7 - Authenticated (Subscriber+) Arbitrary Plugin Installation
The Pubnews theme for WordPress is vulnerable to unauthorized arbitrary plugin installation due to a missing capability check on the pubnews_importer_plugin_action_for_notice() function in all versions up to, and including, 1.0.7. This makes it possible for a…
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High 7.3
code-projects Online Notice Board Profile Picture registration.php unrestricted upload
A vulnerability was found in code-projects Online Notice Board up to 1.0 and classified as critical. This issue affects some unknown processing of the file /registration.php of the component Profile Picture Handler. The manipulation of the argument img leads …
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Critical 9.9
Dangerous File Upload
Dangerous File Upload vulnerabilities allow upload of malicious scripts. Affected products: ABB ASPECT - Enterprise v3.08.02; NEXUS Series v3.08.02; MATRIX Series v3.08.02
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High 8.7
Arbitrary file download in Zoo-Project Echo Example
ZOO-Project is a C-based WPS (Web Processing Service) implementation. A path traversal vulnerability was discovered in Zoo-Project Echo example. The Echo example available by default in Zoo installs implements file caching, which can be controlled by user-giv…
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Critical 9.8
Extension - tassos.gr - Unrestricted file upload in Convert Forms component for Joomla < 4.4.8
Unrestricted file upload via security bypass in Convert Forms component for Joomla in versions before 4.4.8.
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Medium 5.5
IBM Cognos Controller file upload
IBM Cognos Controller 11.0.0 and 11.0.1 is vulnerable to malicious file upload by allowing unrestricted filetype attachments in the Journal entry page. Attackers can make use of this weakness and upload malicious executable files into the system and can be se…
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High 8.2
Synapse can be forced to thumbnail unexpected file formats, invoking external, potentially untrustworthy decoders
Synapse is an open-source Matrix homeserver. In Synapse versions before 1.120.1, enabling the dynamic_thumbnails option or processing a specially crafted request could trigger the decoding and thumbnail generation of uncommon image formats, potentially invoki…
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High 8.0
IBM Cognos Controller file upload
IBM Cognos Controller 11.0.0 and 11.0.1 could be vulnerable to malicious file upload by not validating the content of the file uploaded to the web interface. Attackers can make use of this weakness and upload malicious executable files into the system, and it…
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Medium 5.5
IBM Cognos Controller file upload
IBM Cognos Controller 11.0.0 and 11.0.1 could be vulnerable to malicious file upload by not validating the type of file uploaded to Journal entry attachments. Attackers can make use of this weakness and upload malicious executable files into the system that c…
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High 7.5
Advanced File Manager <= 5.2.10 - Authenticated (Subscriber+) Arbitrary File Upload
The Advanced File Manager plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation via the 'class_fma_connector.php' file in all versions up to, and including, 5.2.10. This makes it possible for authenticated attackers,…
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High 8.8
An authenticated arbitrary file upload vulnerability in the /documentCache/upload endpoint of InfoDom Performa 365 v4.0…
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Critical 10.0
WordPress Fediverse Embeds plugin <= 1.5.3 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in Stefan Bohacek Fediverse Embeds fediverse-embeds allows Upload a Web Shell to a Web Server.This issue affects Fediverse Embeds: from n/a through <= 1.5.3.
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Low 2.2
A vulnerability was discovered in FreePBX 17.0.19.17. It does not verify the type of uploaded (valid FreePBX module) fi…
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Critical 9.8
Interinfo DreamMaker - Unrestricted File Upload through Path Traversal
DreamMaker from Interinfo has a Path Traversal vulnerability and does not restrict the types of uploaded files. This allows unauthenticated remote attackers to upload arbitrary files to any directory, leading to arbitrary code execution by uploading webshells.
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Critical 10.0
WordPress Pathomation plugin <= 2.5.1 - Arbitrary File Upload vulnerability
Unrestricted Upload of File with Dangerous Type vulnerability in pathomation Pathomation pathomation allows Upload a Web Shell to a Web Server.This issue affects Pathomation: from n/a through <= 2.5.1.
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Critical 9.9
Tumult Hype Animations <= 1.9.15 - Authenticated (Author+) Arbitrary File Upload via hypeanimations_panel Function
The Tumult Hype Animations plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the hypeanimations_panel() function in all versions up to, and including, 1.9.15. This makes it possible for authenticated attackers…
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High 7.5
File Manager Pro – Filester <= 1.8.6- Authenticated (Subscriber+) Arbitrary File Upload
The File Manager Pro – Filester plugin for WordPress is vulnerable to arbitrary file uploads due to missing validation in the 'fsConnector' function in all versions up to, and including, 1.8.6. This makes it possible for authenticated attackers, with Subscrib…
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High 7.2
Booking calendar, Appointment Booking System <= 3.2.15 - Unauthenticated Stored Cross-Site Scripting via SVG File Upload
The Booking calendar, Appointment Booking System plugin for WordPress is vulnerable to Stored Cross-Site Scripting via SVG File uploads in all versions up to, and including, 3.2.15 due to insufficient input sanitization and output escaping. This makes it poss…
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Medium 6.3
An authenticated arbitrary file upload vulnerability in the Documents module of SPIP v4.3.3 allows attackers to execute…
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Medium 6.3
CodeAstro Hospital Management System his_doc_update-account.php unrestricted upload
A vulnerability, which was classified as critical, was found in CodeAstro Hospital Management System 1.0. Affected is an unknown function of the file /backend/doc/his_doc_update-account.php. The manipulation of the argument doc_dpic leads to unrestricted uplo…
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Medium 4.3
Codezips Free Exam Hall Seating Management System Profile Image profile.php unrestricted upload
A vulnerability was found in Codezips Free Exam Hall Seating Management System 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file profile.php of the component Profile Image Handler. The manipulation of the argument i…
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Critical 9.8
School Management <= 91.5.0 - Unauthenticated Arbitrary File Upload
The School Management System for Wordpress plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the mj_smgt_user_avatar_image_upload() function in all versions up to, and including, 91.5.0. This makes it possible…
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Critical 9.8
WPGYM <= 67.1.0 - Unauthenticated Arbitrary File Upload
The WPGYM - Wordpress Gym Management System plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the MJ_gmgt_user_avatar_image_upload() function in all versions up to, and including, 67.1.0. This makes it possibl…
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High 8.8
School Management <= 91.5.0 - Authenticated (Student+) Arbitrary File Upload
The School Management System for Wordpress plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the mj_smgt_load_documets_new() and mj_smgt_load_documets() functions in all versions up to, and including, 91.5.0. …
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Critical 10.0
Automated Logic WebCTRL and Carrier i-Vu Unrestricted File Upload
An unrestricted upload of file with dangerous type in Automated Logic WebCTRL 7.0 could allow an unauthenticated user to perform remote command execution via a crafted HTTP POST request which could lead to uploading a malicious file.
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High 8.8
An arbitrary file upload vulnerability in ModbusMechanic v3.0 allows attackers to execute arbitrary code via uploading …
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Critical 9.8
An arbitrary file upload vulnerability in the component \Roaming\Omega of OmegaT v6.0.1 allows attackers to execute arb…
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Medium 5.5
File Upload Bypass in django Filer
Unrestricted Upload of File with Dangerous Type, Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) vulnerability in django CMS Association django Filer allows Input Data Manipulation, Stored XSS. This issue affects django Filer: fr…
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Critical 9.8
HkCms <= v2.3.2.240702 is vulnerable to file upload in the getFileName method in /app/common/library/Upload.php.
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High 7.2
An arbitrary file upload vulnerability in the component /admin/friendlink_edit of DedeBIZ v6.3.0 allows attackers to ex…
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High 7.2
File Upload vulnerability in change-image.php in Anuj Kumar's Boat Booking System version 1.0 allows local attackers to…
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High 7.1
Arbitrary File Write leading up to remote code execution (instructor accounts)
MarkUs is a web application for the submission and grading of student assignments. In versions prior to 2.4.8, an arbitrary file write vulnerability in the update/upload/create file methods in Controllers allows authenticated instructors to write arbitrary fi…
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High 7.1
MarkUs Arbitrary File Write leading up to remote code execution (student accounts)
MarkUs is a web application for the submission and grading of student assignments. In versions prior to 2.4.8, an arbitrary file write vulnerability accessible via the update_files method of the SubmissionsController allows authenticated users (e.g. students)…