CWE-434
AllowedUnrestricted Upload of File with Dangerous Type
Abstraction: Base · Status: Draft
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
6008 vulnerabilities reference this CWE, most recent first.
GHSA-F8VF-66GM-85XG
Vulnerability from github – Published: 2026-01-07 12:31 – Updated: 2026-01-07 12:31The Drag and Drop Multiple File Upload – Contact Form 7 plugin for WordPress is vulnerable to limited upload of files with a dangerous type in all versions up to, and including, 1.3.9.2. This is due to the plugin not blocking .phar and .svg files. This makes it possible for unauthenticated attackers to upload arbitrary .phar or .svg files containing malicious PHP or JavaScript code. Malicious PHP code can be used to achieve remote code execution on the server via direct file access, if the server is configured to execute .phar files as PHP. The upload of .svg files allows for Stored Cross-Site Scripting under certain circumstances.
{
"affected": [],
"aliases": [
"CVE-2025-14842"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-07T12:16:56Z",
"severity": "MODERATE"
},
"details": "The Drag and Drop Multiple File Upload \u2013 Contact Form 7 plugin for WordPress is vulnerable to limited upload of files with a dangerous type in all versions up to, and including, 1.3.9.2. This is due to the plugin not blocking .phar and .svg files. This makes it possible for unauthenticated attackers to upload arbitrary .phar or .svg files containing malicious PHP or JavaScript code. Malicious PHP code can be used to achieve remote code execution on the server via direct file access, if the server is configured to execute .phar files as PHP. The upload of .svg files allows for Stored Cross-Site Scripting under certain circumstances.",
"id": "GHSA-f8vf-66gm-85xg",
"modified": "2026-01-07T12:31:23Z",
"published": "2026-01-07T12:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-14842"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/contact-form-7/trunk/includes/formatting.php#L310"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/drag-and-drop-multiple-file-upload-contact-form-7/trunk/inc/dnd-upload-cf7.php#L108"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/drag-and-drop-multiple-file-upload-contact-form-7/trunk/inc/dnd-upload-cf7.php#L1116"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3428236%40drag-and-drop-multiple-file-upload-contact-form-7%2Ftrunk\u0026old=3415946%40drag-and-drop-multiple-file-upload-contact-form-7%2Ftrunk\u0026sfp_email=\u0026sfph_mail="
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/c78a0325-5bbf-4550-8477-94247f085e40?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-F8WH-VV57-HCJP
Vulnerability from github – Published: 2022-05-24 17:45 – Updated: 2022-05-24 17:45An issue was discovered in INSMA Wifi Mini Spy 1080P HD Security IP Camera 1.9.7 B. A local attacker can execute arbitrary code via editing the 'recdata.db' file to call a specially crafted GoAhead ASP-file on the SD card.
{
"affected": [],
"aliases": [
"CVE-2020-19642"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-03-30T03:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in INSMA Wifi Mini Spy 1080P HD Security IP Camera 1.9.7 B. A local attacker can execute arbitrary code via editing the \u0027recdata.db\u0027 file to call a specially crafted GoAhead ASP-file on the SD card.",
"id": "GHSA-f8wh-vv57-hcjp",
"modified": "2022-05-24T17:45:41Z",
"published": "2022-05-24T17:45:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-19642"
},
{
"type": "WEB",
"url": "https://xn--sb-lka.org/cve/INSMA.txt"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-F8WQ-XR9H-W4F8
Vulnerability from github – Published: 2025-11-05 09:30 – Updated: 2025-11-05 09:30The KiotViet Sync plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the create_media() function in all versions up to, and including, 1.8.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
{
"affected": [],
"aliases": [
"CVE-2025-12674"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-05T08:15:33Z",
"severity": "CRITICAL"
},
"details": "The KiotViet Sync plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the create_media() function in all versions up to, and including, 1.8.5. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible.",
"id": "GHSA-f8wq-xr9h-w4f8",
"modified": "2025-11-05T09:30:25Z",
"published": "2025-11-05T09:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12674"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/kiotvietsync"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7fdd670f-2a71-4c1d-af46-f0fd05352f7e?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F8X6-M9F5-FFP8
Vulnerability from github – Published: 2022-01-06 21:08 – Updated: 2024-04-22 19:10This affects the package unisharp/laravel-filemanager prior to version 2.6.2. The upload() function does not sufficiently validate the file type when uploading.
An attacker may be able to reproduce the following steps: - Install a package with a web Laravel application. - Navigate to the Upload window - Upload an image file, then capture the request - Edit the request contents with a malicious file (webshell) - Enter the path of file uploaded on URL - Remote Code Execution
**Note: Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in the here.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "unisharp/laravel-filemanager"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.6.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-23814"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2022-01-04T18:05:21Z",
"nvd_published_at": "2021-12-17T20:15:00Z",
"severity": "MODERATE"
},
"details": "This affects the package unisharp/laravel-filemanager prior to version 2.6.2. The `upload()` function does not sufficiently validate the file type when uploading.\n\nAn attacker may be able to reproduce the following steps:\n- Install a package with a web Laravel application.\n- Navigate to the Upload window\n- Upload an image file, then capture the request\n- Edit the request contents with a malicious file (webshell)\n- Enter the path of file uploaded on URL\n- Remote Code Execution\n\n**Note: Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in the [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories).",
"id": "GHSA-f8x6-m9f5-ffp8",
"modified": "2024-04-22T19:10:22Z",
"published": "2022-01-06T21:08:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23814"
},
{
"type": "WEB",
"url": "https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975"
},
{
"type": "WEB",
"url": "https://github.com/UniSharp/laravel-filemanager/commit/bd84899ce65a7f193e676dd8444e424fa50f64fa"
},
{
"type": "PACKAGE",
"url": "https://github.com/UniSharp/laravel-filemanager"
},
{
"type": "WEB",
"url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php#L26"
},
{
"type": "WEB",
"url": "https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26"
},
{
"type": "WEB",
"url": "https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L",
"type": "CVSS_V3"
}
],
"summary": "Unrestricted Upload of File with Dangerous Type in unisharp/laravel-filemanager"
}
GHSA-F8X8-VXWQ-2P77
Vulnerability from github – Published: 2022-09-20 00:00 – Updated: 2022-09-22 00:00The d8s-grammars for python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-strings package. The affected version is 0.1.0.
{
"affected": [],
"aliases": [
"CVE-2022-38884"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-09-19T16:15:00Z",
"severity": "CRITICAL"
},
"details": "The d8s-grammars for python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-strings package. The affected version is 0.1.0.",
"id": "GHSA-f8x8-vxwq-2p77",
"modified": "2022-09-22T00:00:27Z",
"published": "2022-09-20T00:00:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-38884"
},
{
"type": "WEB",
"url": "https://github.com/democritus-project/d8s-grammars/issues/6"
},
{
"type": "WEB",
"url": "https://pypi.org/project/d8s-grammars"
},
{
"type": "WEB",
"url": "https://pypi.org/project/democritus-strings"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F8XX-42HP-FXWW
Vulnerability from github – Published: 2022-08-12 00:01 – Updated: 2022-08-16 00:00A vulnerability, which was classified as critical, was found in SourceCodester Company Website CMS. Affected is an unknown function of the file /dashboard/add-service.php of the component Add Service Handler. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. VDB-206022 is the identifier assigned to this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2022-2750"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-08-11T05:15:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability, which was classified as critical, was found in SourceCodester Company Website CMS. Affected is an unknown function of the file /dashboard/add-service.php of the component Add Service Handler. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. VDB-206022 is the identifier assigned to this vulnerability.",
"id": "GHSA-f8xx-42hp-fxww",
"modified": "2022-08-16T00:00:25Z",
"published": "2022-08-12T00:01:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-2750"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.206022"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F92F-F3RW-XX2M
Vulnerability from github – Published: 2023-01-13 00:30 – Updated: 2023-01-20 21:30A vulnerability was found in SourceCodester Online Food Ordering System 2.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /fos/admin/index.php?page=menu of the component Menu Form. The manipulation of the argument Image with the input leads to unrestricted upload. The attack can be launched remotely. The identifier VDB-218185 was assigned to this vulnerability.
{
"affected": [],
"aliases": [
"CVE-2023-0257"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-12T22:15:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability was found in SourceCodester Online Food Ordering System 2.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /fos/admin/index.php?page=menu of the component Menu Form. The manipulation of the argument Image with the input \u003c?php system($_GET[\u0027c\u0027]); ?\u003e leads to unrestricted upload. The attack can be launched remotely. The identifier VDB-218185 was assigned to this vulnerability.",
"id": "GHSA-f92f-f3rw-xx2m",
"modified": "2023-01-20T21:30:27Z",
"published": "2023-01-13T00:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0257"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.218185"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.218185"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F949-967P-47P8
Vulnerability from github – Published: 2022-05-14 03:53 – Updated: 2022-05-14 03:53Unrestricted File Upload vulnerability in GPWeb 8.4.61 allows remote authenticated users to upload any type of file, including a PHP shell.
{
"affected": [],
"aliases": [
"CVE-2017-15876"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-12-19T02:29:00Z",
"severity": "HIGH"
},
"details": "Unrestricted File Upload vulnerability in GPWeb 8.4.61 allows remote authenticated users to upload any type of file, including a PHP shell.",
"id": "GHSA-f949-967p-47p8",
"modified": "2022-05-14T03:53:36Z",
"published": "2022-05-14T03:53:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15876"
},
{
"type": "WEB",
"url": "https://www.augustopereira.com.br/blog/seguranca-gpweb-8-4-61-multiplas-falhas-sqli-manipulacao-de-privilegios-uploads-sem-restricoes-exposicao-de-informacao-sensivel"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F977-25MJ-57RX
Vulnerability from github – Published: 2022-04-09 00:00 – Updated: 2022-04-15 00:00Simple House Rental System v1 was discovered to contain an arbitrary file upload vulnerability via /app/register.php. This vulnerability allows attackers to execute arbitrary code via a crafted PHP file.
{
"affected": [],
"aliases": [
"CVE-2022-27352"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-08T09:15:00Z",
"severity": "HIGH"
},
"details": "Simple House Rental System v1 was discovered to contain an arbitrary file upload vulnerability via /app/register.php. This vulnerability allows attackers to execute arbitrary code via a crafted PHP file.",
"id": "GHSA-f977-25mj-57rx",
"modified": "2022-04-15T00:00:57Z",
"published": "2022-04-09T00:00:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27352"
},
{
"type": "WEB",
"url": "https://drive.google.com/file/d/1ZmGyRo9Ah8w3NQF93vsYEj4JQExyVT7Z/view?usp=sharing"
},
{
"type": "WEB",
"url": "https://github.com/D4rkP0w4r/CVEs/blob/main/Simple%20House%20Rental%20System%20Upload%20%2B%20RCE/POC.md"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/166656/Simple-House-Rental-System-1-Shell-Upload.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F987-R737-HX6G
Vulnerability from github – Published: 2022-07-16 00:00 – Updated: 2022-07-20 00:00An Arbitrary File Upload vulnerability exists in Microweber 1.1.3 that allows attackers to getshell via the Settings Upload Picture section by uploading pictures with malicious code, user.ini.
{
"affected": [],
"aliases": [
"CVE-2021-36461"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-07-15T12:15:00Z",
"severity": "HIGH"
},
"details": "An Arbitrary File Upload vulnerability exists in Microweber 1.1.3 that allows attackers to getshell via the Settings Upload Picture section by uploading pictures with malicious code, user.ini.",
"id": "GHSA-f987-r737-hx6g",
"modified": "2022-07-20T00:00:25Z",
"published": "2022-07-16T00:00:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-36461"
},
{
"type": "WEB",
"url": "https://github.com/microweber/microweber/issues/751"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
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
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
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
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
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
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
When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
Mitigation MIT-15
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
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
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
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
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.