Common Weakness Enumeration

CWE-434

Allowed

Unrestricted Upload of File with Dangerous Type

Abstraction: Base · Status: Draft

API response cwe.mitre.org

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

2627 vulnerabilities reference this CWE, most recent first.

CVE-2026-45053 (GCVE-0-2026-45053)

Vulnerability from cvelistv5 – Published: 2026-05-13 20:42 – Updated: 2026-05-15 18:56
VLAI
Title
CubeCart: Authenticated Arbitrary File Upload to RCE in REST Files API
Summary
CubeCart is an ecommerce software solution. Prior to 6.7.0, an Authenticated Arbitrary File Upload vulnerability exists in the REST API File Manager endpoint (POST /api/v1/files) of CubeCart. The endpoint allows any holder of an API key with files:rw permission to upload PHP source files into the web-accessible images/source/ directory, where they are executed by the web server. Combined with a path-traversal flaw in the same endpoint's filepath parameter, a single API request writes a webshell anywhere the webserver process can write — including the document root — yielding full Remote Code Execution. This vulnerability is fixed in 6.7.0.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 18:53 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
cubecart v6 Affected: < 6.7.0
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CVE-2026-44566 (GCVE-0-2026-44566)

Vulnerability from cvelistv5 – Published: 2026-05-15 21:01 – Updated: 2026-05-19 12:28
VLAI
Title
Open WebUI: Arbitrary File Upload and Path Traversal
Summary
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.1.124, when attaching files to a promp, the name of the file is derived from the original HTTP upload request and is not validated or sanitized. This allows for users to upload files with names containing dot-segments in the file path and traverse out of the intended uploads directory. Effectively, users can upload files anywhere on the filesystem the user running the web server has permission. This vulnerability is fixed in 0.1.124.
Severity
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-19 12:28 UTC
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
open-webui open-webui Affected: < 0.1.124
Create a notification for this product.
Show details on NVD website
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CVE-2026-44402 (GCVE-0-2026-44402)

Vulnerability from cvelistv5 – Published: 2026-09-04 15:31 – Updated: 2026-10-01 15:20
VLAI
Title
Voltronic Power SNMP Web Pro 1.1 Unauthenticated RCE via upload.cgi
Summary
Voltronic Power SNMP Web Pro 1.1 contains an unauthenticated remote code execution vulnerability in the upload.cgi firmware update endpoint that allows remote attackers to execute arbitrary commands as root by uploading a crafted tar archive without valid credentials. Attackers can supply a malicious tar archive containing arbitrary executable files that are extracted to a privileged directory and executed as root, achieving full system compromise.
Severity
9.3 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-04 17:39 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
Voltronic Power SNMP Web Pro Affected: 1.1 (custom)
    cpe:2.3:a:voltronicpower:snmp_web_pro:1.1:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-12 00:00
Credits
Angelo Rosa
Show details on NVD website
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CVE-2026-44103 (GCVE-0-2026-44103)

Vulnerability from cvelistv5 – Published: 2026-07-30 06:52 – Updated: 2026-07-30 12:56
VLAI
Title
JupiCore does not perform validation of firmware
Summary
An unauthenticated remote attacker can inject malicious firmware into the internal charging module because the JupiCore service transmits firmware updates without performing integrity or verification check. Successful exploitation may compromise the integrity of the affected device. This vulnerability could be used in chain with CVE-2026-44104.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 12:56 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
CERTVDE CNA
References
Impacted products
Credits
ZDI
Show details on NVD website
To clipboard 

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CVE-2026-44097 (GCVE-0-2026-44097)

Vulnerability from cvelistv5 – Published: 2026-07-30 06:49 – Updated: 2026-07-30 15:17
VLAI
Title
File Upload vulnerability
Summary
A low-privileged remote attacker with "operator" access can upload arbitrary files via the REST endpoint intended for firmware updates, resulting in persistent storage of attacker-controlled files and potentially exhausting resources, which might lead to Denial-of-Service.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-30 15:12 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
CERTVDE CNA
References
Impacted products
Credits
ZDI
Show details on NVD website
To clipboard 

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CVE-2026-44088 (GCVE-0-2026-44088)

Vulnerability from cvelistv5 – Published: 2026-05-15 08:48 – Updated: 2026-05-15 11:07
VLAI
Title
Remote Code Execution in SzafirHost
Summary
SzafirHost verifies the signature of the downloaded JAR file using class JarInputStream (reading from the beginning of the file), but loads classes using class JarFile/URLClassLoader (reading the Central Directory from the end). It can lead to remote code execution by allowing an attacker to combine a genuine, signed JAR file with a malicious ZIP file, causing the verification to pass but the malicious class to be loaded. This issue was fixed in version 1.2.1.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:L/SI:L/SA:L
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 11:07 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
CERT-PL CNA
References
Impacted products
Vendor Product Version
Krajowa Izba Rozliczeniowa SzafirHost Affected: 0 , < 1.2.1 (semver)
Create a notification for this product.
Credits
Mariusz Maik
Show details on NVD website
To clipboard 

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CVE-2026-42879 (GCVE-0-2026-42879)

Vulnerability from cvelistv5 – Published: 2026-05-27 18:29 – Updated: 2026-06-01 17:08
VLAI
Title
FacturaScripts: Authenticated Remote Code Execution (RCE) via GIF Image Upload in Product Images
Summary
FacturaScripts is an open source accounting and invoicing software. In 2025.81 and earlier, an authenticated unrestricted file upload vulnerability exists in FacturaScripts' product image upload functionality. An attacker with valid credentials can upload a PHP file disguised as a GIF image (using a GIF89a header), bypassing MIME type validation. The file is stored with its original extension, including executable extensions such as .php. The vulnerability exists the addImageAction() method of Core/Lib/ExtendedController/ProductImagesTrait.php.
Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-01 17:05 UTC
CWE
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
NeoRazorX facturascripts Affected: <= 2025.81
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-42844 (GCVE-0-2026-42844)

Vulnerability from cvelistv5 – Published: 2026-05-12 21:43 – Updated: 2026-05-13 14:28
VLAI
Title
Grav: Low-privileged API users can create super-admin accounts via blueprint-upload
Summary
Grav is a file-based Web platform. In Grav 2.0.0-beta.2, a low-privileged authenticated API user with api.media.write can abuse /api/v1/blueprint-upload to write an arbitrary YAML file into user/accounts/, then log in as the newly created account with api.super privileges. This results in full administrative compromise of the Grav API. This vulnerability is fixed in API 1.0.0-beta.17.
Severity
8.7 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-13 14:28 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
  • CWE-269 - Improper Privilege Management
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
getgrav grav Affected: 2.0.0-beta.2
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-42748 (GCVE-0-2026-42748)

Vulnerability from cvelistv5 – Published: 2026-05-27 09:49 – Updated: 2026-05-27 10:50
VLAI
Title
WordPress WPify Woo Czech plugin <= 5.4.1 - Arbitrary File Upload vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in WPify WPify Woo Czech wpify-woo allows Upload a Web Shell to a Web Server.This issue affects WPify Woo Czech: from n/a through <= 5.4.1.
Severity
9.9 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-27 10:43 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
WPify WPify Woo Czech Affected: 0 , ≤ 5.4.1 (custom)
Create a notification for this product.
Date Public
2026-05-27 11:08
Credits
kai63001 | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-42538 (GCVE-0-2026-42538)

Vulnerability from cvelistv5 – Published: 2026-06-04 20:48 – Updated: 2026-06-05 20:07
VLAI
Title
IRIS has an Insecure File Upload
Summary
IRIS is a web collaborative platform that helps incident responders share technical details during investigations. Versions prior to 2.4.28 do not properly validate uploaded files. The application can therefore be misused to host phishing pages, amongst other things. This also creates another instance of a Cross-Site Scripting (XSS) vulnerability. Version 2.4.28 contains a patch.
Severity
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-05 20:07 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
dfir-iris iris-web Affected: < 2.4.28
Create a notification for this product.
Show details on NVD website
To clipboard 

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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.

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