Common Weakness Enumeration

CWE-434

Allowed

Unrestricted Upload of File with Dangerous Type

Abstraction: Base · Status: Draft

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.

2626 vulnerabilities reference this CWE, most recent first.

CVE-2026-46489 (GCVE-0-2026-46489)

Vulnerability from cvelistv5 – Published: 2026-06-11 18:55 – Updated: 2026-06-12 10:31
VLAI
Title
SolidInvoice: Unrestricted file upload with no MIME validation allows stored XSS via malicious SVG logo
Summary
SolidInvoice is an open-source invoicing platform. Prior to version 2.3.17, the company logo upload feature accepts any file type without validation. An authenticated administrator can upload an SVG file containing embedded JavaScript. This script is base64-encoded and injected unescaped into every page of the application, causing stored cross-site scripting (XSS) that executes in every authenticated user's browser. This issue has been patched in version 2.3.17.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-12 10:30 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
SolidInvoice SolidInvoice Affected: < 2.3.17
Create a notification for this product.
Show details on NVD website

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CVE-2026-46429 (GCVE-0-2026-46429)

Vulnerability from cvelistv5 – Published: 2026-11-06 19:40 – Updated: 2026-11-06 19:40
VLAI
Title
GeoNode: Unrestricted File Upload
Summary
GeoNode is a geospatial content management system, a platform for the management and publication of geospatial data. Prior to 5.0.3, specially crafted requests can circumvent GeoNode upload service validation, allowing a low-privileged remote user to store and serve malicious files. This issue is fixed in version 5.0.3.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
GeoNode geonode Affected: < 5.0.3
Create a notification for this product.
Show details on NVD website

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CVE-2026-46426 (GCVE-0-2026-46426)

Vulnerability from cvelistv5 – Published: 2026-05-27 17:04 – Updated: 2026-05-27 18:02
VLAI
Title
Budibase: Unrestricted Upload of File with Dangerous Type
Summary
Budibase is an open-source low-code platform. Prior to 3.38.2, the file upload endpoint POST /api/attachments/process does not enforce active-content restrictions for authenticated users. The checks for dangerous file extensions are conditionally wrapped inside if (isPublicUser) or if (isPublicUser || !env.SELF_HOSTED), meaning any authenticated builder can upload executable web content — SVG files with inline <script> tags, HTML pages with JavaScript, .js modules — which are then stored in the object store (MinIO/S3) with their correct MIME types. When the resulting signed URL is opened by any app user, the browser executes the payload. Impact is persistent stored XSS over all application end users. This vulnerability is fixed in 3.38.2.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 18:01 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
Budibase budibase Affected: < 3.38.2
Create a notification for this product.
Show details on NVD website

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CVE-2026-46400 (GCVE-0-2026-46400)

Vulnerability from cvelistv5 – Published: 2026-06-05 19:15 – Updated: 2026-06-08 15:50
VLAI
Title
HAXCMS PHP has a File Upload Validation Bypass
Summary
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Starting in version 11.0.6 and prior to version 25.0.0, the file upload functionality in HAXCMS PHP only validates file extensions using a regex pattern without checking the actual file content or MIME type. This allows attackers to upload malicious files (e.g., PHP webshells) disguised as legitimate image files, potentially leading to remote code execution. Version 25.0.0 contains a fix for the issue.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-08 15:50 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
haxtheweb haxcms-php Affected: >= 11.0.6, < 25.0.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-46392 (GCVE-0-2026-46392)

Vulnerability from cvelistv5 – Published: 2026-06-05 18:20 – Updated: 2026-06-05 19:11
VLAI
Title
HAX CMS PHP Has a Stored XSS via Case-Sensitivity Mismatch in HTML Upload Validation
Summary
HAX CMS helps manage microsite universe with PHP or NodeJs backends. Prior to version 26.0.0 of HAX CMS PHP, the `saveFile` endpoint validates upload extensions case-insensitively and writes the filename to disk verbatim, but the `.htaccess` rule that forces `Content-Disposition: attachment` on HTML files is case-sensitive. An HTML file uploaded with an uppercase extension (`.HTML`, `.Html`, `.HTM`) is still served as `text/html` but the forced-download header never applies, so the browser renders it inline and executes any embedded JavaScript in the HAXcms origin. This bypasses the mitigation shipped for CVE-2026-22704. Version 26.0.0 contains a fix.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-05 19:11 UTC
CWE
  • CWE-178 - Improper Handling of Case Sensitivity
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
haxtheweb haxcms-php Affected: < 26.0.0
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Show details on NVD website

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CVE-2026-45797 (GCVE-0-2026-45797)

Vulnerability from cvelistv5 – Published: 2026-07-20 15:43 – Updated: 2026-07-20 19:07
VLAI
Title
HeyForm Vulnerable to Stored XSS via Unauthenticated SVG File Upload
Summary
HeyForm is an open-source form builder. Prior to version 3.0.0-rc.7, the `/api/upload` endpoint allows unauthenticated file uploads including SVG files. Uploaded SVGs are stored in the static assets directory and served with `Content-Type: image/svg+xml` by Express's serve-static middleware, allowing an attacker to achieve stored cross-site scripting (XSS) on the heyform domain without any authentication. Version 3.0.0-rc.7 contains a patch for the issue.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-20 19:01 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
heyform heyform Affected: < 3.0.0-rc.7
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Show details on NVD website

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CVE-2026-45444 (GCVE-0-2026-45444)

Vulnerability from cvelistv5 – Published: 2026-05-20 18:00 – Updated: 2026-05-26 13:16 X_Known Exploited Vulnerability
VLAI
Title
WordPress Gift Cards For WooCommerce Pro plugin <= 4.2.6 - Arbitrary File Upload vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in WP Swings Gift Cards For WooCommerce Pro allows Using Malicious Files. This issue affects Gift Cards For WooCommerce Pro: from n/a through 4.2.6.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-21 13:33 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
WP Swings Gift Cards For WooCommerce Pro Affected: n/a , ≤ 4.2.6 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-45315 (GCVE-0-2026-45315)

Vulnerability from cvelistv5 – Published: 2026-05-15 21:26 – Updated: 2026-05-19 17:19
VLAI
Title
Open WebUI: Stored XSS via attacker-controlled file extension in /api/v1/audio/transcriptions
Summary
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the audio transcription upload endpoint takes the file extension from the user-supplied filename and saves the file under CACHE_DIR/audio/transcriptions/.. The /cache/{path} route serves these files via FileResponse, which sets Content-Type from the on-disk extension and emits no Content-Disposition. A verified user with the default-on chat.stt permission can upload a polyglot WAV+HTML file named pwn.html and trick any other user into opening the resulting URL — the response comes back as text/html and any embedded <script> runs in the Open WebUI origin. This vulnerability is fixed in 0.9.3.
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-19 12:23 UTC
CWE
  • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
  • CWE-646 - Reliance on File Name or Extension of Externally-Supplied File
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: < 0.9.3
Create a notification for this product.
Show details on NVD website

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CVE-2026-45140 (GCVE-0-2026-45140)

Vulnerability from cvelistv5 – Published: 2026-09-17 20:11 – Updated: 2026-09-18 18:33
VLAI
Title
Chamilo LMS CStudio upload flow allows unauthenticated remote code execution
Summary
Chamilo LMS is an open-source learning management system. Prior to 2.0.1, Chamilo LMS allows an unauthenticated remote attacker to execute arbitrary code on the server. The authoritative advisory does not identify the affected endpoint, component, input, or exploitation mechanism. This issue is fixed in version 2.0.1.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 17:32 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-219 - Storage of File with Sensitive Data Under Web Root
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
Impacted products
Vendor Product Version
chamilo chamilo-lms Affected: < 2.0.1
Create a notification for this product.
Show details on NVD website

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CVE-2026-45089 (GCVE-0-2026-45089)

Vulnerability from cvelistv5 – Published: 2026-05-27 17:33 – Updated: 2026-05-27 17:59
VLAI
Title
Dalfox: Unauthenticated Arbitrary File Create/Append via `output` Option in Dalfox Server Mode
Summary
Dalfox is a powerful open-source XSS scanner and utility focused on automation. Prior to 2.13.0, when dalfox is run in REST API server mode, the output, output-all, and debug fields in model.Options are JSON-tagged and deserialized directly from the attacker's request body, then propagated unchanged through dalfox.Initialize into the scan engine's logging path. The logger opens the attacker-supplied path with os.O_APPEND|os.O_CREATE|os.O_WRONLY and writes scan log lines to it. Critically, this file write block lives outside the IsLibrary guard in DalLog, so it executes even in server/library mode where file output was never intended to operate. Because no API key is required in the default configuration, an unauthenticated network caller can create or append to any file writable by the dalfox process on the host filesystem. This vulnerability is fixed in 2.13.0.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 17:59 UTC
CWE
  • CWE-73 - External Control of File Name or Path
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
hahwul dalfox Affected: < 2.13.0
Create a notification for this product.
Show details on NVD website

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Mitigation
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]

Mitigation MIT-21
Architecture and Design

Strategy: Enforcement by Conversion

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.

Mitigation
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]

Mitigation MIT-5
Implementation

Strategy: Input Validation

  • 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.
Mitigation
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.

Mitigation
Implementation

Strategy: Input Validation

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]

Mitigation
Implementation

When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.

Mitigation MIT-15
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.

Mitigation
Implementation

Do not rely exclusively on sanity checks of file contents to ensure that the file is of the expected type and size. It may be possible for an attacker to hide code in some file segments that will still be executed by the server. For example, GIF images may contain a free-form comments field.

Mitigation
Implementation

Do not rely exclusively on the MIME content type or filename attribute when determining how to render a file. Validating the MIME content type and ensuring that it matches the extension is only a partial solution.

Mitigation MIT-17
Architecture and Design Operation

Strategy: Environment Hardening

Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.

Mitigation MIT-22
Architecture and Design Operation

Strategy: Sandbox or Jail

  • Run the code in a "jail" or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
  • OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
  • This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
  • Be careful to avoid CWE-243 and other weaknesses related to jails.
CAPEC-1: Accessing Functionality Not Properly Constrained by ACLs

In applications, particularly web applications, access to functionality is mitigated by an authorization framework. This framework maps Access Control Lists (ACLs) to elements of the application's functionality; particularly URL's for web apps. In the case that the administrator failed to specify an ACL for a particular element, an attacker may be able to access it with impunity. An attacker with the ability to access functionality not properly constrained by ACLs can obtain sensitive information and possibly compromise the entire application. Such an attacker can access resources that must be available only to users at a higher privilege level, can access management sections of the application, or can run queries for data that they otherwise not supposed to.