CWE-434
Unrestricted Upload of File with Dangerous Type
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
CVE-2020-3436 (GCVE-0-2020-3436)
Vulnerability from cvelistv5 – Published: 2020-10-21 18:36 – Updated: 2024-11-13 17:48
VLAI
Title
Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services File Upload Denial of Service Vulnerability
Summary
A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to upload arbitrary-sized files to specific folders on an affected device, which could lead to an unexpected device reload. The vulnerability exists because the affected software does not efficiently handle the writing of large files to specific folders on the local file system. An attacker could exploit this vulnerability by uploading files to those specific folders. A successful exploit could allow the attacker to write a file that triggers a watchdog timeout, which would cause the device to unexpectedly reload, causing a denial of service (DoS) condition.
Severity
8.6 (High)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://tools.cisco.com/security/center/content/C… | vendor-advisoryx_refsource_CISCO |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Adaptive Security Appliance (ASA) Software |
Affected:
n/a
|
Date Public
2020-10-21 00:00
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CVE-2020-36701 (GCVE-0-2020-36701)
Vulnerability from cvelistv5 – Published: 2023-06-07 01:51 – Updated: 2026-04-08 16:49
VLAI
Title
Page Builder: KingComposer < 2.9.4 - Arbitrary File Upload
Summary
The Page Builder: KingComposer plugin for WordPress is vulnerable to Arbitrary File Uploads in versions up to, and including, 2.9.3 via the 'process_bulk_action' function in the 'kingcomposer/includes/kc.extensions.php' file. This makes it possible for authenticated users with author level permissions and above to upload arbitrary files onto the server which can be used to execute code on the server.
Severity
8.8 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| kingthemes | Page Builder: KingComposer – Free Drag and Drop page builder by King-Theme |
Affected:
0 , ≤ 2.9.3
(semver)
|
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CVE-2020-36705 (GCVE-0-2020-36705)
Vulnerability from cvelistv5 – Published: 2023-06-07 12:43 – Updated: 2026-04-08 16:50
VLAI
Title
Adning Advertising <= 1.5.5 - Arbitrary File Upload
Summary
The Adning Advertising plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the _ning_upload_image function in versions up to, and including, 1.5.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| tunafish | Adning Advertising |
Affected:
0 , ≤ 1.5.5
(semver)
|
Credits
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CVE-2020-36706 (GCVE-0-2020-36706)
Vulnerability from cvelistv5 – Published: 2023-10-20 06:35 – Updated: 2026-04-08 16:53
VLAI
Title
Simple:Press – WordPress Forum Plugin <= 6.6.0 - Arbitrary File Upload
Summary
The Simple:Press – WordPress Forum Plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the ~/admin/resources/jscript/ajaxupload/sf-uploader.php file in versions up to, and including, 6.6.0. This makes it possible for attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| simplepress | Simple:Press Forum |
Affected:
0 , < 6.6.1
(semver)
|
Credits
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CVE-2020-36825 (GCVE-0-2020-36825)
Vulnerability from cvelistv5 – Published: 2024-03-24 12:00 – Updated: 2025-04-10 18:37 Unsupported When Assigned Disputed
VLAI
Title
cyberaz0r WebRAT api.php download_file unrestricted upload
Summary
** UNSUPPORTED WHEN ASSIGNED ** ** DISPUTED ** A vulnerability has been found in cyberaz0r WebRAT up to 20191222 and classified as critical. This vulnerability affects the function download_file of the file Server/api.php. The manipulation of the argument name leads to unrestricted upload. The attack can be initiated remotely. The real existence of this vulnerability is still doubted at the moment. The patch is identified as 0c394a795b9c10c07085361e6fcea286ee793701. It is recommended to apply a patch to fix this issue. VDB-257782 is the identifier assigned to this vulnerability. NOTE: This vulnerability only affects products that are no longer supported by the maintainer. NOTE: The issue, discovered in a 20-stars GitHub project (now private) by its author, had CVE requested by a third party 4 years post-resolution, referencing the fix commit (now a broken link). Due to minimal attention and usage, it should not be eligible for CVE according to the project maintainer.
Severity
6.3 (Medium)
6.3 (Medium)
CWE
- CWE-434 - Unrestricted Upload
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.257782 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.257782 | signaturepermissions-required |
| https://github.com/cyberaz0r/WebRAT/commit/0c394a… | broken-linkpatch |
Credits
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CVE-2020-36842 (GCVE-0-2020-36842)
Vulnerability from cvelistv5 – Published: 2024-10-16 07:31 – Updated: 2026-04-08 17:28
VLAI
Title
Migration, Backup, Staging – WPvivid <= 0.9.35 - Authenticated (Subscriber+) Arbitrary File Upload
Summary
The Migration, Backup, Staging – WPvivid plugin for WordPress is vulnerable to arbitrary file uploads due to a missing capability check on the wpvivid_upload_import_files and wpvivid_upload_files AJAX actions that allows low-level authenticated attackers to upload zip files that can be subsequently extracted. This affects versions up to, and including 0.9.35.
Severity
8.8 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wpvividplugins | WPvivid — Backup, Migration & Staging |
Affected:
0 , ≤ 0.9.35
(semver)
|
Credits
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CVE-2020-36847 (GCVE-0-2020-36847)
Vulnerability from cvelistv5 – Published: 2025-07-12 09:24 – Updated: 2026-04-08 17:11
VLAI
Title
Simple File List < 4.2.3 - Remote Code Execution
Summary
The Simple-File-List Plugin for WordPress is vulnerable to Remote Code Execution in versions up to, and including, 4.2.2 via the rename function which can be used to rename uploaded PHP code with a png extension to use a php extension. This allows unauthenticated attackers to execute code on the server.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| eemitch | Simple File List |
Affected:
0 , < 4.2.3
(semver)
|
Credits
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CVE-2020-36849 (GCVE-0-2020-36849)
Vulnerability from cvelistv5 – Published: 2025-07-12 11:23 – Updated: 2026-04-08 17:24
VLAI
Title
AIT CSV import/export <= 3.0.3 - Unauthenticated Arbitrary File Upload
Summary
The AIT CSV import/export plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the /wp-content/plugins/ait-csv-import-export/admin/upload-handler.php file in versions up to, and including, 3.0.3. This makes it possible for unauthorized attackers to upload arbitrary files on the affected sites server which may make remote code execution possible.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| AIT Themes | AIT CSV import/export |
Affected:
0 , ≤ 3.0.3
(semver)
|
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CVE-2020-36863 (GCVE-0-2020-36863)
Vulnerability from cvelistv5 – Published: 2025-10-30 21:46 – Updated: 2025-11-17 18:21
VLAI
Title
Nagios XI < 5.7.2 Unrestricted File Upload via Audio Import Directory
Summary
Nagios XI versions prior to 5.7.2 allow PHP files to be uploaded to the Audio Import directory and executed from that location. The upload handler did not properly restrict file types or enforce storage outside of the webroot, and the web server permitted execution within the upload directory. An authenticated attacker with access to the audio import feature could upload a crafted PHP file and then request it to achieve remote code execution with the privileges of the application service.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.nagios.com/changelog/nagios-xi/ | release-notespatch |
| https://www.vulncheck.com/advisories/nagios-xi-un… | third-party-advisory |
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CVE-2020-36882 (GCVE-0-2020-36882)
Vulnerability from cvelistv5 – Published: 2025-12-05 17:33 – Updated: 2025-12-08 20:04
VLAI
Title
Flexsense DiskBoss Application Crash Denial of Service
Summary
Flexsense DiskBoss 7.7.14 allows unauthenticated attackers to upload arbitrary files via /Command/Search Files/Directory field, leading to a denial of service by crashing the application.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48276 | exploit |
| https://www.diskboss.com/ | product |
| https://github.com/x00x00x00x00/diskboss_7.7.14/r… | product |
| https://www.vulncheck.com/advisories/flexsense-di… | third-party-advisory |
Date Public
2020-04-01 00:00
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Mitigation
Phase: Architecture and Design
Description:
- 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 ID: MIT-21
Phase: Architecture and Design
Strategy: Enforcement by Conversion
Description:
- 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
Phase: Architecture and Design
Description:
- Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically. [REF-423]
Mitigation ID: MIT-5
Phase: Implementation
Strategy: Input Validation
Description:
- 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
Phase: Architecture and Design
Description:
- 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
Phase: Implementation
Strategy: Input Validation
Description:
- 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
Phase: Implementation
Description:
- When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
Mitigation ID: MIT-15
Phase: Architecture and Design
Description:
- 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
Phase: Implementation
Description:
- 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
Phase: Implementation
Description:
- 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 ID: MIT-17
Phases: Architecture and Design, Operation
Strategy: Environment Hardening
Description:
- 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 ID: MIT-22
Phases: Architecture and Design, Operation
Strategy: Sandbox or Jail
Description:
- 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.