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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.

6278 vulnerabilities reference this CWE, most recent first.

CVE-2026-2978 (GCVE-0-2026-2978)

Vulnerability from cvelistv5 – Published: 2026-02-23 07:32 – Updated: 2026-02-23 13:15
VLAI
Title
FastApiAdmin Scheduled Task API controller.py upload_file_controller unrestricted upload
Summary
A vulnerability was detected in FastApiAdmin up to 2.2.0. This vulnerability affects the function upload_file_controller of the file /backend/app/api/v1/module_system/params/controller.py of the component Scheduled Task API. Performing a manipulation results in unrestricted upload. The attack can be initiated remotely. The exploit is now public and may be used.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-23 13:13 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347362 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347362 signaturepermissions-required
https://vuldb.com/?submit.756155 third-party-advisory
https://github.com/CC-T-454455/Vulnerabilities/tr… exploit
Impacted products
Vendor Product Version
n/a FastApiAdmin Affected: 2.0
Affected: 2.1
Affected: 2.2.0
Show details on NVD website
To clipboard 

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CVE-2026-2977 (GCVE-0-2026-2977)

Vulnerability from cvelistv5 – Published: 2026-02-23 07:02 – Updated: 2026-02-23 13:18
VLAI
Title
FastApiAdmin Scheduled Task API controller.py upload_controller unrestricted upload
Summary
A security vulnerability has been detected in FastApiAdmin up to 2.2.0. This affects the function upload_controller of the file /backend/app/api/v1/module_common/file/controller.py of the component Scheduled Task API. Such manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-23 13:18 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.347361 vdb-entrytechnical-description
https://vuldb.com/?ctiid.347361 signaturepermissions-required
https://vuldb.com/?submit.756144 third-party-advisory
https://github.com/CC-T-454455/Vulnerabilities/tr… exploit
Impacted products
Vendor Product Version
n/a FastApiAdmin Affected: 2.0
Affected: 2.1
Affected: 2.2.0
Show details on NVD website
To clipboard 

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CVE-2026-2942 (GCVE-0-2026-2942)

Vulnerability from cvelistv5 – Published: 2026-04-08 17:25 – Updated: 2026-04-08 19:22
VLAI
Title
ProSolution WP Client <= 1.9.9 - Unauthenticated Arbitrary File Upload via proSol_fileUploadProcess
Summary
The ProSolution WP Client plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'proSol_fileUploadProcess' function in all versions up to, and including, 1.9.9. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
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: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-08 19:22 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
prosolution ProSolution WP Client Affected: 0 , ≤ 1.9.9 (semver)
Create a notification for this product.
Credits
Nabil Irawan
Show details on NVD website
To clipboard 

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CVE-2026-2743 (GCVE-0-2026-2743)

Vulnerability from cvelistv5 – Published: 2026-03-05 06:45 – Updated: 2026-05-19 19:44
VLAI
Title
SEPPmail User Web Interface Arbitrary File Write to RCE
Summary
Arbitrary File Write via Path Traversal upload to Remote Code Execution in SeppMail User Web Interface. The affected feature is the large file transfer (LFT). This issue affects SeppMail: 15.0.2.1 and before
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
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-19 19:43 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
References
Impacted products
Vendor Product Version
SeppMail SeppMail Affected: unknown , ≤ 15.0.2.1 (-)
Create a notification for this product.
Credits
Manuel Feifel and Dario Weiss of InfoGuard Labs
Show details on NVD website
To clipboard 

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CVE-2026-2701 (GCVE-0-2026-2701)

Vulnerability from cvelistv5 – Published: 2026-04-02 13:04 – Updated: 2026-04-03 03:55
VLAI
Title
RCE vulnerability in Progress ShareFile Storage Zones Controller (SZC)
Summary
Authenticated user can upload a malicious file to the server and execute it, which leads to remote code execution.
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 2026-04-02 00:00 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
  • CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-94 - Improper Control of Generation of Code ('Code Injection')
Assigner
References
Impacted products
Vendor Product Version
Progress ShareFile Storage Zones Controller Affected: 0 , ≤ 5.12.3 (semver)
Create a notification for this product.
Credits
Piotr Bazydlo of watchTowr
Show details on NVD website
To clipboard 

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CVE-2026-2684 (GCVE-0-2026-2684)

Vulnerability from cvelistv5 – Published: 2026-02-18 23:32 – Updated: 2026-02-23 10:26
VLAI
Title
Tsinghua Unigroup Electronic Archives System uploadFile.html unrestricted upload
Summary
A vulnerability was determined in Tsinghua Unigroup Electronic Archives System up to 3.2.210802(62532). The impacted element is an unknown function of the file /Archive/ErecordManage/uploadFile.html. 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. The vendor was contacted early about this disclosure but did not respond in any way.
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 2026-02-19 17:16 UTC
CWE
Assigner
References
Impacted products
Credits
lanmeik (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-2666 (GCVE-0-2026-2666)

Vulnerability from cvelistv5 – Published: 2026-02-18 20:02 – Updated: 2026-02-23 10:19
VLAI
Title
mingSoft MCMS Template Archive uploadTemplate.do unrestricted upload
Summary
A flaw has been found in mingSoft MCMS 6.1.1. The affected element is an unknown function of the file /ms/file/uploadTemplate.do of the component Template Archive Handler. Executing a manipulation of the argument File can lead to unrestricted upload. The attack can be launched remotely. The exploit has been published and may be used.
Severity
5.1 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
4.7 (Medium)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
4.7 (Medium)
CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-18 20:35 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.346463 vdb-entrytechnical-description
https://vuldb.com/?ctiid.346463 signaturepermissions-required
https://vuldb.com/?submit.753243 third-party-advisory
https://github.com/chujianxin0101/vuln/issues/11 issue-tracking
https://github.com/chujianxin0101/vuln/issues/11#… exploitissue-tracking
Impacted products
Vendor Product Version
mingSoft MCMS Affected: 6.1.1
    cpe:2.3:a:mingsoft:mcms:*:*:*:*:*:*:*:*
Create a notification for this product.
Credits
Unnlucky1 (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-2665 (GCVE-0-2026-2665)

Vulnerability from cvelistv5 – Published: 2026-02-18 20:02 – Updated: 2026-02-23 10:19
VLAI
Title
huanzi-qch base-admin JSP Parser SysFileController.java upload unrestricted upload
Summary
A vulnerability was detected in huanzi-qch base-admin up to 57a8126bb3353a004f3c7722089e3b926ea83596. Impacted is the function Upload of the file SysFileController.java of the component JSP Parser. Performing a manipulation of the argument File results in unrestricted upload. The attack can be initiated remotely. The exploit is now public and may be used. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
6.3 (Medium)
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-18 20:37 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version
huanzi-qch base-admin Affected: 57a8126bb3353a004f3c7722089e3b926ea83596
Create a notification for this product.
Credits
Jszdk (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-2550 (GCVE-0-2026-2550)

Vulnerability from cvelistv5 – Published: 2026-02-16 10:02 – Updated: 2026-02-23 10:08
VLAI
Title
EFM iptime A6004MX timepro.cgi commit_vpncli_file_upload unrestricted upload
Summary
A vulnerability was found in EFM iptime A6004MX 14.18.2. Affected is the function commit_vpncli_file_upload of the file /cgi/timepro.cgi. The manipulation results in unrestricted upload. The attack may be performed from remote. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
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/E:P
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:W/RC:R
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-17 14:59 UTC
CWE
Assigner
References
URL Tags
https://vuldb.com/?id.346159 vdb-entrytechnical-description
https://vuldb.com/?ctiid.346159 signaturepermissions-required
https://vuldb.com/?submit.749986 third-party-advisory
https://github.com/LX-LX88/cve-new/issues/3 exploitissue-tracking
Impacted products
Vendor Product Version
EFM iptime A6004MX Affected: 14.18.2
Create a notification for this product.
Credits
LX-LX (VulDB User)
Show details on NVD website
To clipboard 

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CVE-2026-2354 (GCVE-0-2026-2354)

Vulnerability from cvelistv5 – Published: 2026-07-11 03:44 – Updated: 2026-07-13 14:39
VLAI
Title
Swiss Toolkit For WP <= 1.4.6 - Authenticated (Author+) Arbitrary File Upload via upload_extension_files()
Summary
The Swiss Toolkit For WP plugin for WordPress is vulnerable to arbitrary file upload due to a flawed file type validation bypass in the `upload_extension_files()` function in all versions up to, and including, 1.4.6. The `upload_extension_files()` function hooks into WordPress's `wp_check_filetype_and_ext` filter and uses `strpos()` to check if a filename contains a configured extension string, rather than verifying the actual file extension. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files (including PHP) on the affected site's server which may make remote code execution possible, granted the "Enhanced Multi-Format Image Support" feature is enabled with at least one extension (e.g., avif) in the allowed formats.
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 2026-07-13 14:35 UTC
CWE
  • CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
Vendor Product Version
wpmessiah Swiss Toolkit For WP Affected: 0 , ≤ 1.4.6 (semver)
Create a notification for this product.
Credits
Williwollo (CybrX)
Show details on NVD website
To clipboard 

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    "state": "PUBLISHED"
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  "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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