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-2023-6551 (GCVE-0-2023-6551)
Vulnerability from cvelistv5 – Published: 2024-01-04 16:04 – Updated: 2025-06-03 14:42
VLAI
Title
Stored XSS in class.upload.php
Summary
As a simple library, class.upload.php does not perform an in-depth check on uploaded files, allowing a stored XSS vulnerability when the default configuration is used.
Developers must be aware of that fact and use extension whitelisting accompanied by forcing the server to always provide content-type based on the file extension.
The README has been updated to include these guidelines.
Severity
5.4 (Medium)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cert.pl/posts/2024/01/CVE-2023-6551 | third-party-advisory |
| https://cert.pl/en/posts/2024/01/CVE-2023-6551 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| class.upload.php | class.upload.php |
Affected:
0 , ≤ *
(semver)
|
Credits
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CVE-2023-6558 (GCVE-0-2023-6558)
Vulnerability from cvelistv5 – Published: 2024-01-11 08:32 – Updated: 2026-04-08 16:53
VLAI
Title
Export and Import Users and Customers <= 2.4.8 - Authenticated (Shop Manager+) Arbitrary File Upload
Summary
The Export and Import Users and Customers plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the 'upload_import_file' function in versions up to, and including, 2.4.8. This makes it possible for authenticated attackers with shop manager-level capabilities or above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Severity
7.2 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| webtoffee | Export and Import Users and Customers |
Affected:
0 , ≤ 2.4.8
(semver)
|
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CVE-2023-6574 (GCVE-0-2023-6574)
Vulnerability from cvelistv5 – Published: 2023-12-07 19:31 – Updated: 2024-08-02 08:35
VLAI
Title
Byzoro Smart S20 HTTP POST Request updateos.php unrestricted upload
Summary
A vulnerability was found in Byzoro Smart S20 up to 20231120 and classified as critical. Affected by this issue is some unknown functionality of the file /sysmanage/updateos.php of the component HTTP POST Request Handler. The manipulation of the argument 1_file_upload leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. VDB-247154 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
6.3 (Medium)
6.3 (Medium)
CWE
- CWE-434 - Unrestricted Upload
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.247154 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.247154 | signaturepermissions-required |
| https://vuldb.com/?submit.241172 | third-party-advisory |
| https://github.com/flyyue2001/cve/blob/main/smart… | exploitpatch |
Credits
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CVE-2023-6576 (GCVE-0-2023-6576)
Vulnerability from cvelistv5 – Published: 2023-12-07 20:31 – Updated: 2024-08-02 08:35
VLAI
Title
Byzoro S210 HTTP POST Request uploadfile.php unrestricted upload
Summary
A vulnerability was found in Byzoro S210 up to 20231123. It has been declared as critical. This vulnerability affects unknown code of the file /Tool/uploadfile.php of the component HTTP POST Request Handler. The manipulation of the argument file_upload leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-247156. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
6.3 (Medium)
6.3 (Medium)
CWE
- CWE-434 - Unrestricted Upload
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.247156 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.247156 | signaturepermissions-required |
| https://vuldb.com/?submit.242777 | third-party-advisory |
| https://github.com/willchen0011/cve/blob/main/upload.md | exploit |
Credits
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CVE-2023-6635 (GCVE-0-2023-6635)
Vulnerability from cvelistv5 – Published: 2024-02-05 21:21 – Updated: 2026-04-08 16:49
VLAI
Title
EditorsKit <= 1.40.3 - Authenticated (Administrator+) Arbitrary File Upload
Summary
The EditorsKit plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation on the 'import_styles' function in versions up to, and including, 1.40.3. This makes it possible for authenticated attackers with administrator-level capabilities or above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Severity
7.2 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| munirkamal | Gutenberg Block Editor Toolkit – EditorsKit |
Affected:
0 , ≤ 1.40.3
(semver)
|
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CVE-2023-6636 (GCVE-0-2023-6636)
Vulnerability from cvelistv5 – Published: 2024-01-11 08:32 – Updated: 2026-04-08 17:03
VLAI
Title
Greenshift – animation and page builder blocks <= 7.6.2 - Authenticated (Administrator+) Arbitrary File Upload
Summary
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Severity
7.2 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wpsoul | Greenshift – animation and page builder blocks |
Affected:
0 , ≤ 7.6.2
(semver)
|
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CVE-2023-6675 (GCVE-0-2023-6675)
Vulnerability from cvelistv5 – Published: 2024-02-02 12:57 – Updated: 2026-05-20 10:46
VLAI
Title
Malicious File Upload in National Keep's CyberMath
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in National Keep Cyber Security Services CyberMath allows Upload a Web Shell to a Web Server.
This issue affects CyberMath: from v.1.4 before v.1.5.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.usom.gov.tr/bildirim/tr-24-0080 | government-resourcebroken-link |
| https://siberguvenlik.gov.tr/guvenlik-bildirimler… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| National Keep Cyber Security Services | CyberMath |
Affected:
v1.4 , < v1.5
(custom)
|
Date Public
2024-02-02 13:00
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CVE-2023-6723 (GCVE-0-2023-6723)
Vulnerability from cvelistv5 – Published: 2023-12-13 10:10 – Updated: 2025-05-22 18:17
VLAI
Title
Unrestricted Upload of File with Dangerous Type in Repox
Summary
An unrestricted file upload vulnerability has been identified in Repbox, which allows an attacker to upload malicious files via the transforamationfileupload function, due to the lack of proper file type validation controls, resulting in a full system compromise.
Severity
10 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
Date Public
2023-12-12 11:00
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CVE-2023-6794 (GCVE-0-2023-6794)
Vulnerability from cvelistv5 – Published: 2023-12-13 18:16 – Updated: 2024-08-02 08:42
VLAI
Title
PAN-OS: File Upload Vulnerability in the Web Interface
Summary
An arbitrary file upload vulnerability in Palo Alto Networks PAN-OS software enables an authenticated read-write administrator with access to the web interface to disrupt system processes and potentially execute arbitrary code with limited privileges on the firewall.
Severity
5.5 (Medium)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| Palo Alto Networks | PAN-OS |
Affected:
8.1 , < 8.1.26
(custom)
Affected: 9.0 , < 9.0.17-h1 (custom) Affected: 9.1 , < 9.1.14 (custom) Unaffected: 10.1 , < All (custom) Unaffected: 10.2 , < All (custom) Unaffected: 11.0 , < All (custom) Unaffected: 11.1 , < All (custom) |
|
| Palo Alto Networks | Prisma Access |
Unaffected:
All
|
|
| Palo Alto Networks | Cloud NGFW |
Unaffected:
All
|
Date Public
2023-12-13 17:00
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CVE-2023-6826 (GCVE-0-2023-6826)
Vulnerability from cvelistv5 – Published: 2023-12-15 07:30 – Updated: 2026-04-08 16:33
VLAI
Title
E2Pdf <= 1.20.25 - Authenticated (Administrator+) Arbitrary File Upload
Summary
The E2Pdf plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the 'import_action' function in versions up to, and including, 1.20.25. This makes it possible for authenticated attackers with a role that the administrator previously granted access to the plugin, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Severity
7.2 (High)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| oleksandrz | E2Pdf – Export Pdf Tool for WordPress |
Affected:
0 , ≤ 1.20.25
(semver)
|
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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.