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.

6250 vulnerabilities reference this CWE, most recent first.

CVE-2026-23636 (GCVE-0-2026-23636)

Vulnerability from cvelistv5 – Published: 2026-03-25 16:58 – Updated: 2026-03-27 14:56

Title

Kiteworks Secure Data Forms is vulnerable to an Unrestricted Upload of File with Dangerous Type

Summary

Kiteworks is a private data network (PDN). In Kiteworks Secure Data Forms prior to version 9.2.1, the manager of a form could potentially exploit an Unrestricted Upload of File with Dangerous Type due to a missing validation. Upgrade Kiteworks to version 9.2.1 or later to receive a patch.

Severity

5.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-03-27 14:56 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/kiteworks/security-advisories/…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
kiteworks	Secure Data Forms	Affected: < 9.2.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-23499 (GCVE-0-2026-23499)

Vulnerability from cvelistv5 – Published: 2026-01-21 21:36 – Updated: 2026-01-22 16:50

Title

Saleor vulnerable to stored XSS via Unrestricted File Upload

Summary

Saleor is an e-commerce platform. Starting in version 3.0.0 and prior to versions 3.20.108, 3.21.43, and 3.22.27, Saleor allowed authenticated staff users or Apps to upload arbitrary files, including malicious HTML and SVG files containing Javascript. Depending on the deployment strategy, these files may be served from the same domain as the dashboard without any restrictions leading to the execution of malicious scripts in the context of the user's browser. Malicious staff members could craft script injections to target other staff members, possibly stealing their access and/or refresh tokens. Users are vulnerable if they host the media files inside the same domain as the dashboard, e.g., dashboard is at `example.com/dashboard/` and media are under `example.com/media/`. They are not impact if media files are hosted in a different domain, e.g., `media.example.com`. Users are impacted if they do not return a `Content-Disposition: attachment` header for the media files. Saleor Cloud users are not impacted. This issue has been patched in versions: 3.22.27, 3.21.43, and 3.20.108. Some workarounds are available for those unable to upgrade. Configure the servers hosting the media files (e.g., CDN or reverse proxy) to return the Content-Disposition: attachment header. This instructs browsers to download the file instead of rendering them in the browser. Prevent the servers from returning HTML and SVG files. Set-up a `Content-Security-Policy` for media files, such as `Content-Security-Policy: default-src 'none'; base-uri 'none'; frame-ancestors 'none'; form-action 'none';`.

Severity

8.5 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-22 15:09 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 mitre root

References

7 references

URL	Tags
https://github.com/saleor/saleor/security/advisor…	x_refsource_CONFIRM
https://github.com/saleor/saleor/commit/77f7927a0…	x_refsource_MISC
https://github.com/saleor/saleor/commit/7d33efc7a…	x_refsource_MISC
https://github.com/saleor/saleor/commit/9110eba68…	x_refsource_MISC
https://github.com/saleor/saleor/commit/ac6936a33…	x_refsource_MISC
https://github.com/saleor/saleor/commit/b3cb27b3f…	x_refsource_MISC
https://docs.saleor.io/security/#restricted-file-…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
saleor	saleor	Affected: >= 3.2.0, < 3.22.27 Affected: >= 3.1.0, < 3.21.43 Affected: >= 3.0.0, < 3.20.108

Show details on NVD website

JSON

To clipboard

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CVE-2026-22799 (GCVE-0-2026-22799)

Vulnerability from cvelistv5 – Published: 2026-01-12 22:05 – Updated: 2026-01-13 19:08

Title

emlog Arbitrary File Upload Vulnerability

Summary

Emlog is an open source website building system. emlog v2.6.1 and earlier exposes a REST API endpoint (/index.php?rest-api=upload) for media file uploads. The endpoint fails to implement proper validation of file types, extensions, and content, allowing authenticated attackers (with a valid API key or admin session cookie) to upload arbitrary files (including malicious PHP scripts) to the server. An attacker can obtain the API key either by gaining administrator access to enable the REST API setting, or via information disclosure vulnerabilities in the application. Once uploaded, the malicious PHP file can be executed to gain remote code execution (RCE) on the target server, leading to full server 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

SSVC

Exploitation: poc Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-13 14:14 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/emlog/emlog/security/advisorie…	x_refsource_CONFIRM
https://github.com/emlog/emlog/commit/429b02fda84…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
emlog	emlog	Affected: <= 2.6.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-22789 (GCVE-0-2026-22789)

Vulnerability from cvelistv5 – Published: 2026-01-12 21:52 – Updated: 2026-01-13 19:41

Title

WebErpMesv2 has a File Upload Validation Bypass Leading to RCE

Summary

WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry. Prior to 1.19, WebErpMesv2 contains a file upload validation bypass vulnerability in multiple controllers that allows authenticated users to upload arbitrary files, including PHP scripts, leading to Remote Code Execution (RCE). This vulnerability is identical in nature to CVE-2025-52130 but exists in different code locations that were not addressed by the original fix. This vulnerability is fixed in 1.19.

Severity

5.4 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-13 19:41 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type
CWE-616 - Incomplete Identification of Uploaded File Variables (PHP)

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/SMEWebify/WebErpMesv2/security…	x_refsource_CONFIRM
https://github.com/SMEWebify/WebErpMesv2/commit/c…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
SMEWebify	WebErpMesv2	Affected: < 1.19

Show details on NVD website

JSON

To clipboard

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CVE-2026-22786 (GCVE-0-2026-22786)

Vulnerability from cvelistv5 – Published: 2026-01-12 21:09 – Updated: 2026-01-13 19:15

Title

Gin-vue-admin has arbitrary file upload vulnerability caused by path traversal

Summary

Gin-vue-admin is a backstage management system based on vue and gin. Gin-vue-admin <= v2.8.7 has a path traversal vulnerability in the breakpoint resume upload functionality. Attacker can upload any files on any directory. In the breakpoint_continue.go file, the MakeFile function accepts a fileName parameter through the /fileUploadAndDownload/breakpointContinueFinish API endpoint and directly concatenates it with the base directory path (./fileDir/) using os.OpenFile() without any validation for directory traversal sequences (e.g., ../). An attacker with file upload privileges could exploit this vulnerability.

Severity

7.3 (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/E:P

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-12 21:27 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/flipped-aurora/gin-vue-admin/s…	x_refsource_CONFIRM
https://github.com/flipped-aurora/gin-vue-admin/c…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
flipped-aurora	gin-vue-admin	Affected: <= 2.8.7

Show details on NVD website

JSON

To clipboard

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CVE-2026-22783 (GCVE-0-2026-22783)

Vulnerability from cvelistv5 – Published: 2026-01-12 18:27 – Updated: 2026-01-12 18:52

Title

Iris Allows Arbitrary File Deletion via Mass Assignment in Datastore File Management

Summary

Iris is a web collaborative platform that helps incident responders share technical details during investigations. Prior to 2.4.24, the DFIR-IRIS datastore file management system has a vulnerability where mass assignment of the file_local_name field combined with path trust in the delete operation enables authenticated users to delete arbitrary filesystem paths. The vulnerability manifests through a three-step attack chain: authenticated users upload a file to the datastore, update the file's file_local_name field to point to an arbitrary filesystem path through mass assignment, then trigger the delete operation which removes the target file without path validation. This vulnerability is fixed in 2.4.24.

Severity

9.6 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-12 18:51 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type
CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes
CWE-73 - External Control of File Name or Path

Assigner

GitHub_M mitre root

References

2 references

URL	Tags
https://github.com/dfir-iris/iris-web/security/ad…	x_refsource_CONFIRM
https://github.com/dfir-iris/iris-web/commit/57c1…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
dfir-iris	iris-web	Affected: < 2.4.24

Show details on NVD website

JSON

To clipboard

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CVE-2026-22766 (GCVE-0-2026-22766)

Vulnerability from cvelistv5 – Published: 2026-02-24 19:28 – Updated: 2026-03-20 19:43

Summary

Dell Wyse Management Suite, versions prior to WMS 5.5, contain an Unrestricted Upload of File with Dangerous Type vulnerability. A high privileged attacker with remote access could potentially exploit this vulnerability, leading to Remote execution.

Severity

7.2 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-02-26 04:56 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

dell mitre root

References

1 reference

URL	Tags
https://www.dell.com/support/kbdoc/en-us/00042914…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Dell	Wyse Management Suite	Affected: 0 , < 5.5* (semver)

Date Public

2026-02-24 18:00

Show details on NVD website

JSON

To clipboard

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CVE-2026-22707 (GCVE-0-2026-22707)

Vulnerability from cvelistv5 – Published: 2026-05-14 18:40 – Updated: 2026-05-14 19:40

Title

Strapi Upload Plugin MIME Validation Bypass via Content API

Summary

Strapi is an open source headless content management system. In Strapi versions prior to 5.33.3, the Upload plugin's Content API endpoints did not enforce the administrator-configured MIME type restrictions (`plugin.upload.security.allowedTypes` and `deniedTypes`). The same restrictions were correctly enforced on the Admin Panel upload path. The upload plugin's `enforceUploadSecurity` security check was invoked in the admin upload controller but was missing from the Content API controller. The Content API handlers `uploadFiles` and `replaceFile` (and the `upload` wrapper that dispatches to them) called the underlying upload service directly, bypassing both the magic-byte MIME detection and the configured allow/deny lists. An authenticated user with the Content API upload permission could therefore upload file types the administrator had explicitly disallowed, including HTML and SVG content. In deployments serving uploaded files from the same origin as the admin panel (default), an attacker could upload an HTML or SVG file that, when opened directly by an admin, executed JavaScript in the admin origin, enabling admin-session hijack and authenticated administrative actions against the admin API. The patch in version 5.33.3 introduces a shared `prepareUploadRequest` helper that wraps `enforceUploadSecurity` and is called from both the Content API and admin upload controllers, ensuring identical security policy enforcement on every upload entry point.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-14 19:39 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type
CWE-693 - Protection Mechanism Failure

Assigner

GitHub_M mitre root

References

1 reference

URL	Tags
https://github.com/strapi/strapi/security/advisor…	x_refsource_CONFIRM

Impacted products

2 products

Vendor	Product	Version
strapi	strapi	Affected: < 5.33.3
strapi	@strapi/upload	Affected: < 5.33.3

Show details on NVD website

JSON

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CVE-2026-22327 (GCVE-0-2026-22327)

Vulnerability from cvelistv5 – Published: 2026-06-17 09:50 – Updated: 2026-06-17 12:36

Title

WordPress Restaurt theme <= 1.0.4 - Arbitrary File Upload vulnerability

Summary

Subscriber Arbitrary File Upload in Restaurt <= 1.0.4 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 · CISA-ADP (v2.0.3)

Decision recorded 2026-06-17 12:36 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

Patchstack mitre root

References

1 reference

URL	Tags
https://patchstack.com/database/wordpress/theme/r…	vdb-entry

Impacted products

1 product

Vendor	Product	Version
Zozothemes	Restaurt	Affected: n/a , ≤ 1.0.4 (custom)

Credits

Tran Nguyen Bao Khanh (VCI - VNPT Cyber Immunity) | Patchstack Bug Bounty Program

Show details on NVD website

JSON

To clipboard

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CVE-2026-22241 (GCVE-0-2026-22241)

Vulnerability from cvelistv5 – Published: 2026-01-08 15:07 – Updated: 2026-01-23 18:18

Title

Open eClass has Unrestricted File Upload that Leads to Remote Code Execution (RCE)

Summary

The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an arbitrary file upload vulnerability in the theme import functionality enables an attacker with administrative privileges to upload arbitrary files on the server's file system. The main cause of the issue is that no validation or sanitization of the file's present inside the zip archive. This leads to remote code execution on the web server. Version 4.2 patches the issue.

Severity

7.3 (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/E:P

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-01-08 15:50 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

GitHub_M mitre root

References

4 references

URL	Tags
https://github.com/gunet/openeclass/security/advi…	x_refsource_CONFIRM
https://github.com/gunet/openeclass/security/advi…	x_refsource_MISC
https://github.com/gunet/openeclass/commit/3f9d26…	x_refsource_MISC
https://twelvesec.com/2026/01/16/rce-via-arbitrar…

Impacted products

1 product

Vendor	Product	Version
gunet	openeclass	Affected: < 4.2

Show details on NVD website

JSON

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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