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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.

6252 vulnerabilities reference this CWE, most recent first.

CVE-2026-14175 (GCVE-0-2026-14175)

Vulnerability from cvelistv5 – Published: 2026-08-04 08:23 – Updated: 2026-08-04 13:46
VLAI
Title
Unrestricted File Upload in Bilin Software's HUMANIST Digital Human Resources
Summary
Unrestricted upload of file with dangerous type vulnerability in Bilin Software and Informatics Consultancy Inc. HUMANIST Digital Human Resources allows Upload a Web Shell to a Web Server. This issue affects HUMANIST Digital Human Resources: from 26.0 before 26.1.
Severity
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: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-04 13:45 UTC
CWE
  • CWE-434 - Unrestricted upload of file with dangerous type
Assigner
References
Impacted products
Date Public
2026-08-04 08:21
Credits
Umut Can Bozkurt Osman Can Vural
Show details on NVD website
To clipboard 

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CVE-2026-14158 (GCVE-0-2026-14158)

Vulnerability from cvelistv5 – Published: 2026-07-08 04:30 – Updated: 2026-07-08 12:45
VLAI
Title
Widget Logic Visual <= 1.52 - Authenticated (Subscriber+) Remote Code Execution via 'nwlv[cod-tag]' Parameter
Summary
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Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/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 2026-07-08 12:45 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
totalbounty Widget Logic Visual Affected: 0 , ≤ 1.52 (semver)
Create a notification for this product.
Credits
Nabil Irawan
Show details on NVD website
To clipboard 

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CVE-2026-13553 (GCVE-0-2026-13553)

Vulnerability from cvelistv5 – Published: 2026-06-29 09:00 – Updated: 2026-06-29 12:50 X_Freeware
VLAI
Title
itsourcecode Online Hotel Management System controller.php add unrestricted upload
Summary
A flaw has been found in itsourcecode Online Hotel Management System 1.0. Affected is an unknown function of the file /admin/mod_amenities/controller.php?action=add. Executing a manipulation of the argument image can lead to unrestricted upload. It is possible to launch the attack remotely. The exploit has been published and may be used.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.3 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 12:49 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/374561 vdb-entrytechnical-description
https://vuldb.com/vuln/374561/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-13553 third-party-advisory
https://vuldb.com/submit/843570 third-party-advisory
https://github.com/Hh-176/CVE/issues/4 exploitissue-tracking
https://itsourcecode.com/ product
Impacted products
Vendor Product Version
itsourcecode Online Hotel Management System Affected: 1.0
    cpe:2.3:a:itsourcecode:online_hotel_management_system:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Hh-176 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-13547 (GCVE-0-2026-13547)

Vulnerability from cvelistv5 – Published: 2026-06-29 07:30 – Updated: 2026-06-29 12:54
VLAI
Title
Hanwang e-Face General Management Platform upload.do unrestricted upload
Summary
A vulnerability was determined in Hanwang e-Face General Management Platform 6.3.5.4. This issue affects some unknown processing of the file /manage/resourceUpload/upload.do. Executing a manipulation of the argument File can lead to unrestricted upload. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
7.3 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
7.3 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-29 12:54 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/vuln/374555 vdb-entrytechnical-description
https://vuldb.com/vuln/374555/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-13547 third-party-advisory
https://vuldb.com/submit/842646 third-party-advisory
https://ucn9h68n9289.feishu.cn/wiki/SrO0wcxd9i6By… exploit
Impacted products
Vendor Product Version
Hanwang e-Face General Management Platform Affected: 6.3.5.4
    cpe:2.3:a:hanwang:e-face_general_management_platform:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
bigbrother_man (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-13457 (GCVE-0-2026-13457)

Vulnerability from cvelistv5 – Published: 2026-08-11 19:37 – Updated: 2026-08-12 12:57
VLAI
Title
InstaWP Connect <= 0.1.3.6 - Unauthenticated Cryptographic Key Disclosure
Summary
The InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 0.1.3.6 via the (top-level script) function. This is due to the plugin stores its encrypted options file as options-{migrate_key}.txt in wp-content/instawpbackups/ without deploying an index.php or .htaccess to prevent directory listing, exposing the 40-character migrate_key on Apache servers with directory indexing enabled, which allows an attacker to derive the AES-256-CBC passphrase via SHA256(migrate_key), decrypt the options file to recover the api_signature. This makes it possible for unauthenticated attackers to get the database access details and api_signature. Exploitation requires the target WordPress site to be hosted on Apache with directory listing enabled (Options +Indexes) for the wp-content/instawpbackups/ directory, and time limited because it can only be exploited during the migration period.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 12:57 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Credits
0xsabre
Show details on NVD website
To clipboard 

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CVE-2026-13430 (GCVE-0-2026-13430)

Vulnerability from cvelistv5 – Published: 2026-07-10 03:31 – Updated: 2026-07-10 20:31
VLAI
Title
Post Export Import with Media <= 1.13.1 - Authenticated (Administrator+) Arbitrary File Upload via Trailing-Dot Filename Bypass in ZIP Media Import
Summary
The Post Export Import with Media plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 1.13.1 via the import_media_file_secure function. This is due to insufficient file extension validation caused by a trailing-dot filename bypass, where the extension allow-list check in ajax_import_media_start() uses pathinfo() on the raw ZIP entry name (e.g., 'shell.php.'), which returns an empty string for the extension, causing the allow-list guard to be skipped and the file to be extracted to a temporary location, after which import_media_file_secure() copies it into the WordPress uploads directory without re-validating the extension. This makes it possible for authenticated attackers, with administrator-level access and above, to upload files that may be executable, which makes remote code execution possible.
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 2026-07-10 20:25 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
wpazleen Post Export Import with Media Affected: 0 , ≤ 1.13.1 (semver)
Create a notification for this product.
Credits
Chloe Chamberland PRISM
Show details on NVD website
To clipboard 

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CVE-2026-13352 (GCVE-0-2026-13352)

Vulnerability from cvelistv5 – Published: 2026-07-17 03:43 – Updated: 2026-07-17 14:54
VLAI
Title
Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content <= 4.16.18 - Authenticated (Author+) Limited Unsafe File Upload via upload_mimes Filter Expansion
Summary
The Paid Membership Plugin, Ecommerce, User Registration Form, Login Form, User Profile & Restrict Content – ProfilePress plugin for WordPress is vulnerable to Arbitrary File Upload in all versions up to, and including, 4.16.18 via the allowed_mime_types function. This is due to the unconditional registration of an upload_mimes filter that adds executable file extensions (.exe, .apk, .msi) to the global WordPress MIME allowlist, without scoping the expansion to digital-product upload contexts. This makes it possible for authenticated attackers, with author-level access and above, to upload files that may be executable, which makes remote code execution possible. This filter is registered globally on every request regardless of whether the digital products feature is configured or in use, meaning the expanded MIME allowlist affects all WordPress upload contexts site-wide.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:L/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 2026-07-17 14:53 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Credits
skyv3il Chirita Catalin-Andrei (CC99IE)
Show details on NVD website
To clipboard 

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CVE-2026-13165 (GCVE-0-2026-13165)

Vulnerability from cvelistv5 – Published: 2026-06-29 12:16 – Updated: 2026-06-29 13:58
VLAI
Title
Remote Code Execution in SzafirHost
Summary
SzafirHost verifies the downloaded native library archive with one JarFile parser (reading the Central Directory) but extracts native libraries with JarInputStream parser (reading sequentially from local file headers). An attacker who controls the served archive can insert a malicious DLL/SO/DYLIB as a local-file-header entry between the last legitimate entry and the Central Directory, without adding it to the Central Directory. The signature verifier never sees the injected entry and accepts the archive as validly signed; the extractor reads it sequentially and writes the attacker library to the native temp directory with no hash check), while the archive-size check still passes. This can lead to remote code execution. This issue was fixed in version 1.2.2.
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 2026-06-29 13:58 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
Krajowa Izba Rozliczeniowa SzafirHost Affected: 0 , < 1.2.2 (semver)
Create a notification for this product.
Date Public
2026-06-29 12:15
Credits
Mariusz Maik
Show details on NVD website
To clipboard 

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CVE-2026-12483 (GCVE-0-2026-12483)

Vulnerability from cvelistv5 – Published: 2026-09-04 13:29 – Updated: 2026-09-04 17:57
VLAI
Title
LearnDash LMS <= 5.1.5 - Authenticated (Subscriber+) Arbitrary File Upload via Assignment Upload Handler
Summary
The LearnDash LMS plugin for WordPress is vulnerable to Unrestricted File Type Upload in versions up to and including 5.1.5. This is due to insufficient input validation in the 'learndash_fileupload_process' function, which iterates through an entire array and validates only the first file. This makes it possible for authenticated attackers, with subscriber-level access and above who are enrolled in a course with assignment uploads enabled, to upload arbitrary disallowed files, including PHP files, to the server's wp-content/uploads/learndash/assignments/ directory. The uploaded files can only be used for Remote Code Execution if default server configurations have been changed to allow for execution.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/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 2026-09-04 17:56 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
StellarWP LearnDash LMS Affected: 0 , ≤ 5.1.5 (semver)
Create a notification for this product.
Credits
Nguyen Ngoc Duc (duc193)
Show details on NVD website
To clipboard 

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CVE-2026-12476 (GCVE-0-2026-12476)

Vulnerability from cvelistv5 – Published: 2026-07-29 02:31 – Updated: 2026-07-29 12:22
VLAI
Title
Easy Digital Downloads <= 3.6.9 - Authenticated (Shop Manager+) Arbitrary File Upload via 'edd-import-file' Parameter
Summary
The Easy Digital Downloads plugin for WordPress is vulnerable to Arbitrary File Upload in versions up to and including 3.6.9. This is due to insufficient file type validation in the edd_do_ajax_import_file_upload() function , which only checks the client-supplied $_FILES['edd-import-file']['type'] Content-Type header against an allow-list of CSV mime types, then uses raw move_uploaded_file() (bypassing wp_handle_upload()'s core MIME enforcement) to write the file under its original extension into the web-accessible wp-content/uploads/edd/exports/ directory. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
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 2026-07-29 12:22 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Credits
Tal Kantor
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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