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-2026-54454 (GCVE-0-2026-54454)

Vulnerability from cvelistv5 – Published: 2026-10-13 16:33 – Updated: 2026-10-13 20:21

Title

OpenCATS: Authenticated RCE in the Import module

Summary

OpenCATS is an open-source applicant tracking system and recruitment CRM for staffing agencies and hiring teams. Prior to 0.10.0, the OpenCATS Import module in modules/import/ImportUI.php can preserve an uploaded file's original name for one import data type and place the file in the web-accessible temporary directory. An authenticated user with Import privileges can select the affected import path and upload a PHP file that remains under an attacker-controlled executable filename, and an import error can leave the file on disk. If the temporary directory is served with PHP execution enabled, requesting the staged file can execute arbitrary PHP code with the web server process privileges, exposing or modifying recruiting data and the host system. This issue is fixed in version 0.10.0.

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: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-13 20:14 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

GitHub_M CNA

References

4 references

URL	Tags
https://github.com/opencats/OpenCATS/security/adv…	x_refsource_CONFIRM
https://github.com/opencats/OpenCATS/pull/808	x_refsource_MISC
https://github.com/opencats/OpenCATS/commit/7f151…	x_refsource_MISC
https://github.com/opencats/OpenCATS/releases/tag…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
opencats	OpenCATS	Affected: < 0.10.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-54416 (GCVE-0-2026-54416)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:58 – Updated: 2026-08-10 11:44

Title

Pluck CMS - Unrestricted File Upload via Missing .php8 Extension in Upload Blacklist

Summary

Pluck CMS through 4.7.21 restricts dangerous file uploads in its admin file-management feature using a fixed blacklist in data/inc/files.php ('.php','php3','php4','php5','php6','php7','phtml','.phtm','.pht','.ph3','.ph4','.ph5','.asp','.cgi','.phar'), checked against the last 4-5 characters of the filename.

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 2026-08-05 13:26 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

TuranSec CNA

References

1 reference

URL	Tags
https://github.com/pluck-cms/pluck	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
pluck-cms	Pluck CMS	Affected: 0 , ≤ 4.7.21 (custom)

Date Public

2026-08-05 06:58

Credits

Alijonov Alisher

Show details on NVD website

JSON

To clipboard

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

Vulnerability from cvelistv5 – Published: 2026-06-19 05:41 – Updated: 2026-08-10 11:44

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 %).

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 · CISA-ADP (v2.0.3)

Decision recorded 2026-06-22 15:04 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

TuranSec CNA

References

3 references

URL	Tags
https://github.com/error311/FileRise/releases/tag…	patch
https://github.com/error311/FileRise/blob/v3.15.0…	technical-description
https://github.com/error311/FileRise	product

Impacted products

1 product

Vendor	Product	Version
error311	FileRise	Affected: 0 , ≤ 3.16.0 (semver)

Date Public

2026-06-19 05:41

Credits

Shaxzod Turg'unov (j33d1)

Show details on NVD website

JSON

To clipboard

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CVE-2026-54179 (GCVE-0-2026-54179)

Vulnerability from cvelistv5 – Published: 2026-08-31 20:09 – Updated: 2026-09-01 14:59

Title

backpack/crud: SingleBase64Image accepts any base64 payload behind a `data:image` prefix — SVG-with-script lands on the public disk

Summary

backpack/crud provides Create, Read, Update & Delete (CRUD) functions for Backpack, a collection of Laravel packages that help users build custom administration panels. From 6.0.0 until 6.8.14 and 7.0.37, the src/app/Library/Uploaders/SingleBase64Image.php methods SingleBase64Image::uploadFiles and SingleBase64Image::uploadRepeatableFiles, used by image fields through withFiles(), accept any data URI beginning with data:image without validating the declared MIME subtype or decoded bytes, while src/app/Library/Uploaders/Support/FileNameGenerator.php method FileNameGenerator::getExtensionFromFile applies mime_content_type() to the data URI instead of the decoded content. An authenticated administrator can therefore store arbitrary file content under an extensionless filename on the configured disk, which can cause stored cross-site scripting or other unintended behavior when the file is served and accessed. This issue is fixed in version 7.0.38 and 6.8.14.

Severity

4.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-01 14:15 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

5 references

URL	Tags
https://github.com/Laravel-Backpack/CRUD/security…	x_refsource_CONFIRM
https://github.com/Laravel-Backpack/CRUD/pull/5989	x_refsource_MISC
https://github.com/Laravel-Backpack/CRUD/commit/1…	x_refsource_MISC
https://github.com/Laravel-Backpack/CRUD/releases…	x_refsource_MISC
https://github.com/Laravel-Backpack/CRUD/releases…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Laravel-Backpack	CRUD	Affected: >= 6.0.0, < 6.8.14 Affected: >= 7.0.0, < 7.0.38

Show details on NVD website

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CVE-2026-54177 (GCVE-0-2026-54177)

Vulnerability from cvelistv5 – Published: 2026-09-14 17:54 – Updated: 2026-09-16 16:06

Title

backpack/crud: HasUploadFields keeps the attacker-supplied file extension — public-disk uploads of `shell.php` reach the webserver

Summary

backpack/crud provides Create, Read, Update & Delete (CRUD) functions for Backpack, a collection of Laravel packages that help users build custom administration panels. From 6.0.0 until 6.8.14 and 7.0.38, HasUploadFields methods uploadFileToDisk and uploadMultipleFilesToDisk, used through CrudTrait, and the withFiles() path through FileNameGenerator do not internally reject server-executable file types. An authenticated administrator can achieve remote code execution by using an upload-enabled CRUD field without mimes: and mimetypes: validation when the public disk is web-accessible through php artisan storage:link and the web-server and PHP-FPM configuration executes the stored extension. The legacy path preserves an accepted extension and the newer path derives an extension without blocking dangerous types. The package-level restriction is defense in depth and does not replace application-level upload validation. This issue is fixed in versions 6.8.14 and 7.0.38.

Severity

6.6 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/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 2026-09-16 16:06 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

GitHub_M CNA

References

7 references

URL	Tags
https://github.com/Laravel-Backpack/CRUD/security…	x_refsource_CONFIRM
https://github.com/Laravel-Backpack/CRUD/pull/5993	x_refsource_MISC
https://github.com/Laravel-Backpack/CRUD/pull/5994	x_refsource_MISC
https://github.com/Laravel-Backpack/CRUD/commit/5…	x_refsource_MISC
https://github.com/Laravel-Backpack/CRUD/commit/7…	x_refsource_MISC
https://github.com/Laravel-Backpack/CRUD/releases…	x_refsource_MISC
https://github.com/Laravel-Backpack/CRUD/releases…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
Laravel-Backpack	CRUD	Affected: >= 6.0.0, < 6.8.14 Affected: >= 7.0.0, < 7.0.38

Show details on NVD website

JSON

To clipboard

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CVE-2026-54087 (GCVE-0-2026-54087)

Vulnerability from cvelistv5 – Published: 2026-09-14 17:13 – Updated: 2026-09-14 19:00

Title

EasyAdmin: Stored Cross-Site Scripting (XSS) via uploaded files served inline in FileField and ImageField

Summary

EasyAdmin is a fast and modern admin generator for Symfony applications. From 5.0.0 until 5.0.13, FileField and ImageField can accept browser-executable uploads while templates/crud/field/file.html.twig links to stored files for inline same-origin rendering without a download attribute or Content-Disposition attachment header. When uploads are stored under the public web root, an attacker with access to an affected form can upload HTML through FileField or SVG through ImageField, and JavaScript executes in an authenticated administrator's origin when the file is opened from the backend. Exploitation requires a privilege gap between the uploader and viewer. The issue can expose session or CSRF tokens and enable privilege escalation, but does not permit PHP or PHTML code execution because Symfony guessExtension does not produce those stored extensions. This issue is fixed in version 5.0.13.

Severity

7.6 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-14 19:00 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

3 references

URL	Tags
https://github.com/EasyCorp/EasyAdminBundle/secur…	x_refsource_CONFIRM
https://github.com/EasyCorp/EasyAdminBundle/commi…	x_refsource_MISC
https://github.com/EasyCorp/EasyAdminBundle/relea…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
EasyCorp	EasyAdminBundle	Affected: >= 5.0.0, < 5.0.13

Show details on NVD website

JSON

To clipboard

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CVE-2026-53948 (GCVE-0-2026-53948)

Vulnerability from cvelistv5 – Published: 2026-06-24 18:06 – Updated: 2026-06-25 13:17

Title

Ghost: File Upload Content-Type Spoofing

Summary

Ghost is a Node.js content management system. From 6.19.4 until 6.21.1, insufficient validation of the client-supplied Content-Type on Ghost's Admin API file upload endpoint allowed uploaded files to be served from the site with an attacker-chosen content type on S3/GCS storage backends. On installations that serve uploaded files from the same origin as the site, this could have been used to facilitate stored cross-site scripting against site visitors or staff. This vulnerability is fixed in 6.21.1.

Severity

5.4 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-25 13:17 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

GitHub_M CNA

References

1 reference

URL	Tags
https://github.com/TryGhost/Ghost/security/adviso…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
TryGhost	Ghost	Affected: >= 6.19.4, < 6.21.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-53909 (GCVE-0-2026-53909)

Vulnerability from cvelistv5 – Published: 2026-07-01 11:59 – Updated: 2026-07-01 13:37

Title

Arbitrary File Upload in MCO

Summary

MCO does not correctly validate types of uploaded files. File upload validation functionality relies only on client-side checks, which can be bypassed. An authorized, low-privileged attacker can upload files with arbitrary types to the server. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 25.3.3.1 but may also affect other versions.

Severity

5.3 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-01 13:37 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

CERT-PL CNA

References

2 references

URL	Tags
https://cert.pl/en/posts/2026/07/CVE-2026-53902	third-party-advisory
https://mco.mycomplianceoffice.com/	product

Impacted products

1 product

Vendor	Product	Version
MyComplianceOffice	MCO	Affected: 25.3.3.1 (custom)

Credits

Hubert Decyusz (AFINE Team)

Show details on NVD website

JSON

To clipboard

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CVE-2026-53787 (GCVE-0-2026-53787)

Vulnerability from cvelistv5 – Published: 2026-06-12 13:52 – Updated: 2026-06-13 03:01

Title

Amasty Order Attributes for Magento 2 < 4.0.0 Unauthenticated Arbitrary File Upload

Summary

Amasty Order Attributes for Magento 2 before version 4.0.0 contains an unauthenticated arbitrary file upload vulnerability that allows unauthenticated attackers to write arbitrary files to the store's media directory by submitting files of any type or name to the upload endpoint without authentication, session validation, or cart context. Attackers can upload PHP files to achieve remote code execution on servers where the media directory permits PHP execution, or alternatively enable malware hosting, stored cross-site scripting via HTML or SVG uploads, and path traversal to write files outside the intended upload directory.

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: none Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-13 03:01 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type

Assigner

VulnCheck CNA

References

3 references

URL	Tags
https://sansec.io/research/amasty-order-attribute…	technical-description
https://amasty.com/order-attributes-for-magento-2.html	productrelease-notes
https://www.vulncheck.com/advisories/amasty-order…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Amasty	Order Attributes for Magento 2	Affected: 0 , < 4.0.0 (semver)

Date Public

2026-06-12 00:00

Credits

Sansec

Show details on NVD website

JSON

To clipboard

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CVE-2026-53724 (GCVE-0-2026-53724)

Vulnerability from cvelistv5 – Published: 2026-06-12 18:34 – Updated: 2026-06-12 20:01

Title

Parse Server: Stored XSS via trailing-dot filename 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 versions 8.6.79 and 9.9.1-alpha.4, the default file upload extension blocklist can be bypassed by appending a trailing dot to a filename whose extension would otherwise be blocked (e.g. poc.svg.). The trailing dot causes the extension parser to extract an empty string, which short-circuits the blocklist check, and the attacker-controlled Content-Type is forwarded to the storage adapter unchanged. Storage adapters that persist and serve the provided Content-Type (such as S3 or GCS) then serve the file with an active type such as image/svg+xml, enabling stored XSS when a victim opens the file URL. The default GridFS adapter is not affected because it sets X-Content-Type-Options: nosniff on responses. This issue has been patched in versions 8.6.79 and 9.9.1-alpha.4.

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 · CISA-ADP (v2.0.3)

Decision recorded 2026-06-12 19:03 UTC

CWE

CWE-434 - Unrestricted Upload of File with Dangerous Type
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

GitHub_M CNA

References

3 references

URL	Tags
https://github.com/parse-community/parse-server/s…	x_refsource_CONFIRM
https://github.com/parse-community/parse-server/p…	x_refsource_MISC
https://github.com/parse-community/parse-server/p…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
parse-community	parse-server	Affected: < 8.6.79 Affected: >= 9.0.0, < 9.9.1-alpha.4

Show details on NVD website

JSON

To clipboard

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    "dateReserved": "2026-06-10T16:43:31.242Z",
    "dateUpdated": "2026-06-12T20:01:13.569Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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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