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-2021-24248 (GCVE-0-2021-24248)
Vulnerability from cvelistv5 – Published: 2021-05-05 18:39 – Updated: 2024-08-03 19:21
VLAI
Title
Business Directory Plugin < 5.11.1 - Authenticated PHP4 Upload to RCE
Summary
The Business Directory Plugin – Easy Listing Directories for WordPress WordPress plugin before 5.11.1 did not properly check for imported files, forbidding certain extension via a blacklist approach, allowing administrator to import an archive with a .php4 inside for example, leading to RCE
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/ca886a34-cd2b-40… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Business Directory Team | Business Directory Plugin – Easy Listing Directories for WordPress |
Affected:
5.11.1 , < 5.11.1
(custom)
|
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CVE-2021-24252 (GCVE-0-2021-24252)
Vulnerability from cvelistv5 – Published: 2021-05-05 18:39 – Updated: 2024-08-03 19:28
VLAI
Title
Event Banner <= 1.3 - Arbitrary File Upload to RCE
Summary
The Event Banner WordPress plugin through 1.3 does not verify the uploaded image file, allowing admin accounts to upload arbitrary files, such as .exe, .php, or others executable, leading to RCE. Due to the lack of CSRF check, the issue can also be used via such vector to achieve the same result, or via a LFI as authorisation checks are missing (but would require WP to be loaded)
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/91e81c6d-f24d-4f… | x_refsource_CONFIRM |
| https://github.com/jinhuang1102/CVE-ID-Reports/bl… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Event Banner |
Affected:
1.3 , ≤ 1.3
(custom)
|
Credits
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CVE-2021-24253 (GCVE-0-2021-24253)
Vulnerability from cvelistv5 – Published: 2021-05-05 18:39 – Updated: 2024-08-03 19:28
VLAI
Title
Classyfrieds <= 3.8 - Authenticated Arbitrary File Upload to RCE
Summary
The Classyfrieds WordPress plugin through 3.8 does not properly check the uploaded file when an authenticated user adds a listing, only checking the content-type in the request. This allows any authenticated user to upload arbitrary PHP files via the Add Listing feature of the plugin, leading to RCE.
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/ee42c233-0ff6-4b… | x_refsource_CONFIRM |
| https://github.com/jinhuang1102/CVE-ID-Reports/bl… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Classyfrieds |
Affected:
3.8 , ≤ 3.8
(custom)
|
Credits
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CVE-2021-24254 (GCVE-0-2021-24254)
Vulnerability from cvelistv5 – Published: 2021-05-05 18:39 – Updated: 2024-08-03 19:28
VLAI
Title
College Publisher Import <= 0.1 - Arbitrary File Upload to RCE
Summary
The College publisher Import WordPress plugin through 0.1 does not check for the uploaded CSV file to import, allowing high privilege users to upload arbitrary files, such as PHP, leading to RCE. Due to the lack of CSRF check, the issue could also be exploited via a CSRF attack.
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/bb3e56dd-ae2e-45… | x_refsource_CONFIRM |
| https://github.com/jinhuang1102/CVE-ID-Reports/bl… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | College publisher Import |
Affected:
0.1 , ≤ 0.1
(custom)
|
Credits
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CVE-2021-24284 (GCVE-0-2021-24284)
Vulnerability from cvelistv5 – Published: 2021-05-14 11:38 – Updated: 2024-08-03 19:28
VLAI
Title
Kaswara Modern VC Addons <= 3.0.1 - Unauthenticated Arbitrary File Upload
Summary
The Kaswara Modern VC Addons WordPress plugin through 3.0.1 allows unauthenticated arbitrary file upload via the 'uploadFontIcon' AJAX action. The supplied zipfile being unzipped in the wp-content/uploads/kaswara/fonts_icon directory with no checks for malicious files such as PHP.
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/8d66e338-a88f-46… | x_refsource_CONFIRM |
| https://codecanyon.net/item/kaswara-modern-visual… | x_refsource_MISC |
| http://packetstormsecurity.com/files/167743/WordP… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SayenThemes | Kaswara Modern VC Addons |
Affected:
3.0.1 , ≤ 3.0.1
(custom)
|
Credits
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CVE-2021-24311 (GCVE-0-2021-24311)
Vulnerability from cvelistv5 – Published: 2021-06-01 11:33 – Updated: 2024-08-03 19:28
VLAI
Title
External Media < 1.0.34 - Authenticated Arbitrary File Upload
Summary
The wp_ajax_upload-remote-file AJAX action of the External Media WordPress plugin before 1.0.34 was vulnerable to arbitrary file uploads via any authenticated users.
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/4fb90999-6f91-42… | x_refsource_CONFIRM |
| https://www.wordfence.com/blog/2021/05/critical-v… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | External Media |
Affected:
1.0.34 , < 1.0.34
(custom)
|
Credits
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CVE-2021-24370 (GCVE-0-2021-24370)
Vulnerability from cvelistv5 – Published: 2021-06-21 00:00 – Updated: 2024-08-03 19:28
VLAI
Title
Fancy Product Designer < 4.6.9 - Unauthenticated Arbitrary File Upload and RCE
Summary
The Fancy Product Designer WordPress plugin before 4.6.9 allows unauthenticated attackers to upload arbitrary files, resulting in remote code execution.
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Fancy Product Designer |
Affected:
4.6.9 , < 4.6.9
(custom)
|
Credits
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CVE-2021-24376 (GCVE-0-2021-24376)
Vulnerability from cvelistv5 – Published: 2021-06-21 19:18 – Updated: 2024-08-03 19:28
VLAI
Title
Autoptimize < 2.7.8 - Arbitrary File Upload via "Import Settings"
Summary
The Autoptimize WordPress plugin before 2.7.8 attempts to delete malicious files (such as .php) form the uploaded archive via the "Import Settings" feature, after its extraction. However, the extracted folders are not checked and it is possible to upload a zip which contained a directory with PHP file in it and then it is not removed from the disk. It is a bypass of CVE-2020-24948 which allows sending a PHP file via the "Import Settings" functionality to achieve Remote Code Execution.
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/93edcc23-894a-46… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Autoptimize |
Affected:
2.7.8 , < 2.7.8
(custom)
|
Credits
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CVE-2021-24490 (GCVE-0-2021-24490)
Vulnerability from cvelistv5 – Published: 2021-09-13 17:56 – Updated: 2024-08-03 19:35
VLAI
Title
Email Artillery <= 4.1 - Arbitrary File Upload
Summary
The Email Artillery (MASS EMAIL) WordPress plugin through 4.1 does not properly check the uploaded files from the Import Emails feature, allowing arbitrary files to be uploaded. Furthermore, the plugin is also lacking any CSRF check, allowing such issue to be exploited via a CSRF attack as well. However, due to the presence of a .htaccess, denying access to everything in the folder the file is uploaded to, the malicious uploaded file will only be accessible on Web Servers such as Nginx/IIS
Severity
No CVSS data available.
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/4ea0127e-afef-41… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Unknown | Email Artillery (MASS EMAIL) |
Affected:
4.1 , ≤ 4.1
(custom)
|
Credits
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CVE-2021-24493 (GCVE-0-2021-24493)
Vulnerability from cvelistv5 – Published: 2021-09-13 17:56 – Updated: 2024-08-03 19:35
VLAI
Title
Shopp eCommerce <= 1.4 - Unauthenticated Arbitrary File Upload
Summary
The shopp_upload_file AJAX action of the Shopp WordPress plugin through 1.4, available to both unauthenticated and authenticated user does not have any security measure in place to prevent upload of malicious files, such as PHP, allowing unauthenticated users to upload arbitrary files and leading to RCE
Severity
No CVSS data available.
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://wpscan.com/vulnerability/dcc7be04-550b-42… | x_refsource_MISC |
Credits
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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.