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.

5963 vulnerabilities reference this CWE, most recent first.

CVE-2026-57658 (GCVE-0-2026-57658)

Vulnerability from cvelistv5 – Published: 2026-06-26 14:53 – Updated: 2026-06-26 15:31
VLAI
Title
WordPress TemplateSpare plugin <= 4.2.0 - Arbitrary File Upload vulnerability
Summary
Administrator Arbitrary File Upload in TemplateSpare <= 4.2.0 versions.
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: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Templatespare TemplateSpare Affected: n/a , ≤ 4.2.0 (custom)
Create a notification for this product.
Credits
Ananda Dhakal (Patchstack) | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-56414 (GCVE-0-2026-56414)

Vulnerability from cvelistv5 – Published: 2026-06-26 23:00 – Updated: 2026-06-29 13:23
VLAI
Title
H.VIEW HV-500S6 IP Camera Unrestricted Upload of File with Dangerous Type
Summary
A vulnerability exists in H.View IP cameras certificate-related upload interfaces allow authenticated users to store arbitrary file content to fixed, persistent filesystem locations without validating file type, structure, or size. This design omission enables the placement of unexpected or malformed data in locations intended for trusted certificate material, which could affect system integrity or behavior even after reboot.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Impacted products
Vendor Product Version
H.VIEW HV-500S6 IP Camera Affected: IPCAM_V4.06.88.251229
Create a notification for this product.
Credits
Fukuhara Rikuto of Smooth Inc. (CTO) and Hosei University reported this vulnerability to CISA.
Show details on NVD website
To clipboard 

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CVE-2026-56291 (GCVE-0-2026-56291)

Vulnerability from cvelistv5 – Published: 2026-07-09 09:53 – Updated: 2026-07-11 05:28
VLAI
Title
Joomla Extension - balbooa.com - Unauthenticated file upload in Balbooa Forms extension < 2.4.1
Summary
The Joomla extension Balbooa Forms is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Credits
Phil Taylor
Show details on NVD website
To clipboard 

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CVE-2026-56290 (GCVE-0-2026-56290)

Vulnerability from cvelistv5 – Published: 2026-06-29 14:31 – Updated: 2026-07-08 09:53
VLAI
Title
Joomla Extension - joomlack.fr - Unauthenticated file upload in Page Builder CK extension < 3.6.0
Summary
The Joomla extension Page Builder CK is vulnerable to an unauthenticated arbitrary file upload that allows uploading executable files and leads to full RCE.
Severity
10 (Critical)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/AU:Y/U:Red
SSVC
Exploitation: active Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Credits
Phil Taylor
Show details on NVD website
To clipboard 

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CVE-2026-56059 (GCVE-0-2026-56059)

Vulnerability from cvelistv5 – Published: 2026-06-26 14:52 – Updated: 2026-06-26 15:33
VLAI
Title
WordPress Travel Booking theme <= 2.2.5 - Arbitrary File Upload vulnerability
Summary
Subscriber Arbitrary File Upload in Travel Booking <= 2.2.5 versions.
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 (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
PhysCode Travel Booking Affected: n/a , ≤ 2.2.5 (custom)
Create a notification for this product.
Credits
Jamaal ahmed | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-56058 (GCVE-0-2026-56058)

Vulnerability from cvelistv5 – Published: 2026-06-26 14:52 – Updated: 2026-06-26 17:43
VLAI
Title
WordPress Quform plugin <= 2.23.0 - Arbitrary File Upload vulnerability
Summary
Subscriber Arbitrary File Upload in Quform <= 2.23.0 versions.
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 (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
ThemeCatcher Quform Affected: n/a , ≤ 2.23.0 (custom)
Create a notification for this product.
Credits
daroo | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-56027 (GCVE-0-2026-56027)

Vulnerability from cvelistv5 – Published: 2026-06-26 14:52 – Updated: 2026-06-26 15:49
VLAI
Title
WordPress Booster for WooCommerce plugin <= 8.0.1 - Arbitrary File Upload vulnerability
Summary
Customer Arbitrary File Upload in Booster for WooCommerce <= 8.0.1 versions.
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 (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Pluggabl Booster for WooCommerce Affected: n/a , ≤ 8.0.1 (custom)
Create a notification for this product.
Credits
Jakub Herman | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-55778 (GCVE-0-2026-55778)

Vulnerability from cvelistv5 – Published: 2026-07-08 20:50 – Updated: 2026-07-09 13:39
VLAI
Title
Parse Server: Stored XSS via non-standard file extension bypassing file upload extension blocklist
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.9.1-alpha.11 and 8.6.81, the default fileUpload.fileExtensions blocklist could be bypassed by uploading a file with a non-standard or compound extension and dangerous content type, allowing storage adapters such as S3 and GCS to serve attacker-supplied active content and enable stored cross-site scripting. This issue is fixed in versions 9.9.1-alpha.11 and 8.6.81.
Severity
2.1 (Low)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
parse-community parse-server Affected: >= 9.0.0-alpha.1, < 9.9.1-alpha.11
Affected: < 8.6.81
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-55633 (GCVE-0-2026-55633)

Vulnerability from cvelistv5 – Published: 2026-07-07 20:27 – Updated: 2026-07-08 14:46
VLAI
Title
DataEase H2 RCE via Zip Protocol & File Dropper Fix bypass
Summary
DataEase is an open source data visualization and analysis tool. Prior to 2.10.24, a bypass of the H2 zip protocol and file dropper fix allows an authenticated attacker to upload a zip archive disguised with a .ttf extension through FontManage.saveFile and then exploit it through the zip protocol to achieve remote code execution. This issue is fixed in version 2.10.24.
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 (v2.0.3)
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
dataease dataease Affected: < 2.10.24
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-54414 (GCVE-0-2026-54414)

Vulnerability from cvelistv5 – Published: 2026-06-19 05:41 – Updated: 2026-06-22 15:05
VLAI
Title
FileRise shared-folder upload path traversal allows arbitrary file write and admin takeover
Summary
FileRise before 3.16.0 is vulnerable to path traversal in the shared-folder upload endpoint (/api/folder/uploadToSharedFolder.php), leading to arbitrary file write and administrator account takeover. The upload filename is validated by FolderController with basename() and REGEX_FILE_NAME, which permit URL-encoded sequences (the regex blocks / and \ but not %). The raw filename is then passed to UploadModel::handleUpload, where it is reconstructed as trim(urldecode(basename($fileName))), re-introducing path separators after validation (e.g. ..%2fusers%2fusers.txt becomes ../users/users.txt). UploadNamePolicy::isAllowedForWrite() applies basename() internally and therefore only evaluates the final component (users.txt), allowing the traversal sequence to pass the extension policy. The destination path is then used directly in move_uploaded_file() with no realpath containment check, allowing a write outside the intended upload directory. An attacker who possesses a valid, non-expired, upload-enabled shared-folder link/token (which are designed to be shared publicly) can overwrite users/users.txt to create an administrator account, resulting in unauthenticated admin takeover and, depending on configuration, remote code execution. Exploitation requires possession of a valid, non-expired, upload-enabled shared-folder link/token. This issue is fixed in 3.16.0, which URL-decodes before validation and rejects any path separators in the upload filename.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
error311 FileRise Affected: 0 , < 3.16.0 (semver)
Create a notification for this product.
Credits
Shaxzod Turg'unov (j33d1)
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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