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.

CVE-2020-37227 (GCVE-0-2020-37227)

Vulnerability from cvelistv5 – Published: 2026-05-16 15:25 – Updated: 2026-05-18 18:14
VLAI
Title
WordPress Plugin HS Brand Logo Slider 2.1 Unrestricted File Upload
Summary
HS Brand Logo Slider 2.1 contains an unrestricted file upload vulnerability that allows authenticated users to bypass client-side file extension validation by uploading arbitrary files. Attackers can intercept upload requests to the logoupload parameter in the admin interface and rename files to executable extensions .php to achieve remote code execution.
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
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Date Public
2020-10-20 00:00
Credits
Net-Hunter
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CVE-2020-6008 (GCVE-0-2020-6008)

Vulnerability from cvelistv5 – Published: 2020-03-31 14:10 – Updated: 2024-08-04 08:47
VLAI
Summary
LifterLMS Wordpress plugin version below 3.37.15 is vulnerable to arbitrary file write leading to remote code execution
Severity
No CVSS data available.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
n/a LifterLMS Wordpress Plugin Affected: < 3.37.15
Show details on NVD website
To clipboard 

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CVE-2020-6288 (GCVE-0-2020-6288)

Vulnerability from cvelistv5 – Published: 2020-09-09 12:52 – Updated: 2024-08-04 08:55
VLAI
Summary
SAP Business Objects Business Intelligence Platform (Web Intelligence HTML interface) allows an attacker with edit document rights to upload any file (including script files) without proper file format validation leading to Unrestricted upload of file with dangerous type vulnerability. The attacker can modify some formulas and display erroneous content. The server is not affected only the current user browser session, that can easily be closed.
Severity
4.6 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
CWE
Assigner
sap
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2020-6965 (GCVE-0-2020-6965)

Vulnerability from cvelistv5 – Published: 2020-01-24 17:06 – Updated: 2024-08-04 09:18
VLAI
Summary
In ApexPro Telemetry Server Versions 4.2 and prior, CARESCAPE Telemetry Server v4.2 & prior, Clinical Information Center (CIC) Versions 4.X and 5.X, CARESCAPE Central Station (CSCS) Versions 1.X, B450 Version 2.X, B650 Version 1.X, B650 Version 2.X, B850 Version 1.X, B850 Version 2.X, a vulnerability in the software update mechanism allows an authenticated attacker to upload arbitrary files on the system through a crafted update package.
Severity
No CVSS data available.
CWE
  • CWE-434 - UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434
Assigner
References
Impacted products
Vendor Product Version
n/a GE CARESCAPE Telemetry Server,ApexPro Telemetry Server,CARESCAPE Central Station,Clinical Information Center systems,CARESCAPE B450,B650,B850 Monitors Affected: ApexPro Telemetry Server,v4.2 & prior,CARESCAPE Telemetry Server, v4.2 & prior,Clinical Information Center,v4.X& 5.X,CARESCAPE Telemetry Server,v4.3,CARESCAPE Central Station,v1.X,CARESCAPE Central Station,v2.X,B450,v2.X,B650,v1.X,B650,v2.X,B850,v1.X,B850,v2.X
Show details on NVD website
To clipboard 

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CVE-2020-6975 (GCVE-0-2020-6975)

Vulnerability from cvelistv5 – Published: 2020-02-12 23:00 – Updated: 2024-08-04 09:18
VLAI
Summary
Digi International ConnectPort LTS 32 MEI, Firmware Version 1.4.3 (82002228_K 08/09/2018), bios Version 1.2. Successful exploitation of this vulnerability could allow an attacker to upload a malicious file to the application.
Severity
No CVSS data available.
CWE
  • CWE-434 - UNRESTRICTED UPLOAD OF FILE WITH DANGEROUS TYPE CWE-434
Assigner
References
Impacted products
Vendor Product Version
n/a Digi International ConnectPort LTS 32 MEI Affected: Firmware Version 1.4.3 (82002228_K 08/09/2018), bios Version 1.2
Show details on NVD website
To clipboard 

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CVE-2020-7302 (GCVE-0-2020-7302)

Vulnerability from cvelistv5 – Published: 2020-08-13 02:50 – Updated: 2024-08-04 09:25
VLAI
Title
DLP ePO extension - Unrestricted Upload of File with Dangerous Type
Summary
Unrestricted Upload of File with Dangerous Type in McAfee Data Loss Prevention (DLP) ePO extension prior to 11.5.3 allows authenticated attackers to upload malicious files to the DLP case management section via lack of sanity checking.
Severity
5.4 (Medium)
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:N/I:L/A:L
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
McAfee DLP ePO extension Affected: 11.3 , < 11.3.28 (custom)
Affected: 11.4 , < 11.4.200 (custom)
Affected: 11.5 , < 11.5.3 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2020-7569 (GCVE-0-2020-7569)

Vulnerability from cvelistv5 – Published: 2020-11-19 21:02 – Updated: 2024-08-04 09:33
VLAI
Summary
A CWE-434 Unrestricted Upload of File with Dangerous Type vulnerability exists in EcoStruxure Building Operation WebReports V1.9 - V3.1 that could cause an authenticated remote user being able to upload arbitrary files due to incorrect verification of user supplied files and achieve remote code execution.
Severity
No CVSS data available.
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
n/a EcoStruxure Building Operation WebReports V1.9 - V3.1 Affected: EcoStruxure Building Operation WebReports V1.9 - V3.1
Show details on NVD website
To clipboard 

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CVE-2020-7847 (GCVE-0-2020-7847)

Vulnerability from cvelistv5 – Published: 2021-02-23 15:39 – Updated: 2024-08-04 09:41
VLAI
Summary
The ipTIME NAS product allows an arbitrary file upload vulnerability in the Manage Bulletins/Upload feature, which can be leveraged to gain remote code execution. This issue affects: pTIME NAS 1.4.36.
Severity
7.4 (High)
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
EFM Networks ipTIME NAS Affected: 1.4.36
Create a notification for this product.
Credits
JaeHyung Lee, InHyung Lee
Show details on NVD website
To clipboard 

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CVE-2020-7864 (GCVE-0-2020-7864)

Vulnerability from cvelistv5 – Published: 2021-06-15 14:47 – Updated: 2024-09-16 23:20
VLAI
Title
Raonwiz DEXT5 Editor File upload and Execution vulnerability
Summary
Parameter manipulation can bypass authentication to cause file upload and execution. This will execute the remote code. This issue affects: Raonwiz DEXT5Editor versions prior to 3.5.1405747.1100.03.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Raonwiz DEXT5Editor Affected: unspecified , < 3.5.1405747.1100.03 (custom)
Create a notification for this product.
Date Public
2021-06-14 00:00
Show details on NVD website
To clipboard 

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CVE-2020-8260 (GCVE-0-2020-8260)

Vulnerability from cvelistv5 – Published: 2020-10-28 12:47 – Updated: 2025-10-21 23:35
VLAI
Summary
A vulnerability in the Pulse Connect Secure < 9.1R9 admin web interface could allow an authenticated attacker to perform an arbitrary code execution using uncontrolled gzip extraction.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type (CWE-434)
Assigner
References
Impacted products
Vendor Product Version
n/a Pulse Connect Secure / Pulse Policy Secure Affected: 9.1R9
Show details on NVD website
To clipboard 

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Mitigation

Phase: Architecture and Design

Description:

  • 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 ID: MIT-21

Phase: Architecture and Design

Strategy: Enforcement by Conversion

Description:

  • 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

Phase: Architecture and Design

Description:

  • Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically. [REF-423]
Mitigation ID: MIT-5

Phase: Implementation

Strategy: Input Validation

Description:

  • 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

Phase: Architecture and Design

Description:

  • 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

Phase: Implementation

Strategy: Input Validation

Description:

  • 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

Phase: Implementation

Description:

  • When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
Mitigation ID: MIT-15

Phase: Architecture and Design

Description:

  • 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

Phase: Implementation

Description:

  • 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

Phase: Implementation

Description:

  • 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 ID: MIT-17

Phases: Architecture and Design, Operation

Strategy: Environment Hardening

Description:

  • 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 ID: MIT-22

Phases: Architecture and Design, Operation

Strategy: Sandbox or Jail

Description:

  • 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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