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-8QXX-2678-Q552
Vulnerability from github – Published: 2025-08-28 15:30 – Updated: 2026-04-01 18:36Unrestricted Upload of File with Dangerous Type vulnerability in add-ons.org Drag and Drop File Upload for Elementor Forms allows Upload a Web Shell to a Web Server. This issue affects Drag and Drop File Upload for Elementor Forms: from n/a through 1.5.3.
{
"affected": [],
"aliases": [
"CVE-2025-49387"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-28T13:15:59Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in add-ons.org Drag and Drop File Upload for Elementor Forms allows Upload a Web Shell to a Web Server. This issue affects Drag and Drop File Upload for Elementor Forms: from n/a through 1.5.3.",
"id": "GHSA-8qxx-2678-q552",
"modified": "2026-04-01T18:36:00Z",
"published": "2025-08-28T15:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-49387"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/drag-and-drop-file-upload-for-elementor-forms/vulnerability/wordpress-drag-and-drop-file-upload-for-elementor-forms-plugin-1-5-3-arbitrary-file-upload-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8R5J-22J5-W4CM
Vulnerability from github – Published: 2023-01-20 18:30 – Updated: 2023-02-08 17:57When uploading an image file to a bulletin board developed with XpressEngine, a vulnerability in which an arbitrary file can be uploaded due to insufficient verification of the file. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "xpressengine/xpressengine"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.0.15"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-26642"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-08T17:57:31Z",
"nvd_published_at": "2023-01-20T17:15:00Z",
"severity": "CRITICAL"
},
"details": "When uploading an image file to a bulletin board developed with XpressEngine, a vulnerability in which an arbitrary file can be uploaded due to insufficient verification of the file. A remote attacker can use this vulnerability to execute arbitrary code on the server where the bulletin board is running.",
"id": "GHSA-8r5j-22j5-w4cm",
"modified": "2023-02-08T17:57:31Z",
"published": "2023-01-20T18:30:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26642"
},
{
"type": "WEB",
"url": "https://github.com/xpressengine/xpressengine/issues/1366"
},
{
"type": "WEB",
"url": "https://boho.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=67125"
}
],
"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"
}
],
"summary": "XpressEngine vulnerable to Unrestricted Upload of File with Dangerous Type"
}
GHSA-8R7H-24GF-RHR8
Vulnerability from github – Published: 2024-11-21 21:33 – Updated: 2024-11-27 21:32An arbitrary file upload vulnerability in ModbusMechanic v3.0 allows attackers to execute arbitrary code via uploading a crafted .xml file.
{
"affected": [],
"aliases": [
"CVE-2024-51364"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-21T20:15:44Z",
"severity": "HIGH"
},
"details": "An arbitrary file upload vulnerability in ModbusMechanic v3.0 allows attackers to execute arbitrary code via uploading a crafted .xml file.",
"id": "GHSA-8r7h-24gf-rhr8",
"modified": "2024-11-27T21:32:44Z",
"published": "2024-11-21T21:33:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-51364"
},
{
"type": "WEB",
"url": "https://github.com/Gelcon/PoC-ModbusMechanic-3.0-Insecure-Deserialization-and-RCE"
},
{
"type": "WEB",
"url": "http://modbusmechanic.com"
}
],
"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-8R8G-VWFX-2X33
Vulnerability from github – Published: 2026-01-24 09:30 – Updated: 2026-01-24 09:30The Kalrav AI Agent plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the kalrav_upload_file AJAX action in all versions up to, and including, 2.3.3. 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-2025-13374"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-24T08:16:05Z",
"severity": "CRITICAL"
},
"details": "The Kalrav AI Agent plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the kalrav_upload_file AJAX action in all versions up to, and including, 2.3.3. 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-8r8g-vwfx-2x33",
"modified": "2026-01-24T09:30:26Z",
"published": "2026-01-24T09:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-13374"
},
{
"type": "WEB",
"url": "https://github.com/d0n601/CVE-2025-13374"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kalrav-ai-agent/tags/2.3.3/kalrav-ai-agent.php#L967"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/kalrav-ai-agent/trunk/kalrav-ai-agent.php#L967"
},
{
"type": "WEB",
"url": "https://ryankozak.com/posts/cve-2025-13374"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5dc8feae-fc89-4152-b9b2-2b70e6ccb30b?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-8RCX-6793-P6GV
Vulnerability from github – Published: 2022-05-24 16:44 – Updated: 2024-04-04 00:02An issue was discovered in CutePHP CuteNews 2.1.2. An attacker can infiltrate the server through the avatar upload process in the profile area via the avatar_file field to index.php?mod=main&opt=personal. There is no effective control of $imgsize in /core/modules/dashboard.php. The header content of a file can be changed and the control can be bypassed for code execution. (An attacker can use the GIF header for this.)
{
"affected": [],
"aliases": [
"CVE-2019-11447"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-04-22T11:29:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in CutePHP CuteNews 2.1.2. An attacker can infiltrate the server through the avatar upload process in the profile area via the avatar_file field to index.php?mod=main\u0026opt=personal. There is no effective control of $imgsize in /core/modules/dashboard.php. The header content of a file can be changed and the control can be bypassed for code execution. (An attacker can use the GIF header for this.)",
"id": "GHSA-8rcx-6793-p6gv",
"modified": "2024-04-04T00:02:54Z",
"published": "2022-05-24T16:44:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-11447"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/46698"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/159134/CuteNews-2.1.2-Remote-Code-Execution.html"
},
{
"type": "WEB",
"url": "http://pentest.com.tr/exploits/CuteNews-2-1-2-Remote-Code-Execution-Metasploit.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8RQJ-9226-CWX7
Vulnerability from github – Published: 2026-02-18 18:30 – Updated: 2026-02-18 21:31code-projects Scholars Tracking System 1.0 allows an authenticated attacker to achieve remote code execution via unrestricted file upload. The endpoints update_profile_picture.php and upload_picture.php store uploaded files in a web-accessible uploads/ directory using the original, user-supplied filename without validating the file type or extension. By uploading a PHP file and then requesting it from /uploads/, an attacker can execute arbitrary PHP code as the web server user.
{
"affected": [],
"aliases": [
"CVE-2025-70151"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-18T18:24:20Z",
"severity": "HIGH"
},
"details": "code-projects Scholars Tracking System 1.0 allows an authenticated attacker to achieve remote code execution via unrestricted file upload. The endpoints update_profile_picture.php and upload_picture.php store uploaded files in a web-accessible uploads/ directory using the original, user-supplied filename without validating the file type or extension. By uploading a PHP file and then requesting it from /uploads/, an attacker can execute arbitrary PHP code as the web server user.",
"id": "GHSA-8rqj-9226-cwx7",
"modified": "2026-02-18T21:31:22Z",
"published": "2026-02-18T18:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-70151"
},
{
"type": "WEB",
"url": "https://code-projects.org/scholars-tracking-system-in-php-with-source-code"
},
{
"type": "WEB",
"url": "https://youngkevinn.github.io/posts/CVE-2025-70151-Scholars-FileUpload-RCE"
}
],
"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-8RQR-6HQG-PR9G
Vulnerability from github – Published: 2023-08-02 00:30 – Updated: 2025-02-13 18:31Brocade Fabric OS before Brocade Fabric OS v9.1.1c, v9.2.0 contains a vulnerability in the command line that could allow a local user to dump files under user's home directory using grep.
{
"affected": [],
"aliases": [
"CVE-2023-31428"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-08-02T00:15:16Z",
"severity": "MODERATE"
},
"details": "Brocade Fabric OS before Brocade Fabric OS v9.1.1c, v9.2.0 contains a vulnerability in the command line that could allow a local user to dump files under user\u0027s home directory using grep.",
"id": "GHSA-8rqr-6hqg-pr9g",
"modified": "2025-02-13T18:31:44Z",
"published": "2023-08-02T00:30:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-31428"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20230908-0007"
},
{
"type": "WEB",
"url": "https://support.broadcom.com/external/content/SecurityAdvisories/0/22380"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-8RVH-WC8P-MGVR
Vulnerability from github – Published: 2026-03-05 06:30 – Updated: 2026-03-09 21:31Unrestricted Upload of File with Dangerous Type vulnerability in Jordy Meow AI Engine ai-engine allows Using Malicious Files.This issue affects AI Engine: from n/a through <= 3.3.2.
{
"affected": [],
"aliases": [
"CVE-2026-23802"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-05T06:16:22Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in Jordy Meow AI Engine ai-engine allows Using Malicious Files.This issue affects AI Engine: from n/a through \u003c= 3.3.2.",
"id": "GHSA-8rvh-wc8p-mgvr",
"modified": "2026-03-09T21:31:34Z",
"published": "2026-03-05T06:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23802"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/ai-engine/vulnerability/wordpress-ai-engine-plugin-3-3-2-arbitrary-file-upload-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-8V36-8JQ8-23WC
Vulnerability from github – Published: 2022-12-13 03:30 – Updated: 2022-12-15 18:30SAP Business Objects Platform - versions 420, and 430, allows an attacker with normal BI user privileges to upload/replace any file on Business Objects server at the operating system level, enabling the attacker to take full control of the system causing a high impact on confidentiality, integrity, and availability of the application.
{
"affected": [],
"aliases": [
"CVE-2022-41267"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-13T03:15:00Z",
"severity": "HIGH"
},
"details": "SAP Business Objects Platform - versions 420, and 430, allows an attacker with normal BI user privileges to upload/replace any file on Business Objects server at the operating system level, enabling the attacker to take full control of the system causing a high impact on confidentiality, integrity, and availability of the application.",
"id": "GHSA-8v36-8jq8-23wc",
"modified": "2022-12-15T18:30:25Z",
"published": "2022-12-13T03:30:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41267"
},
{
"type": "WEB",
"url": "https://launchpad.support.sap.com/#/notes/3239475"
},
{
"type": "WEB",
"url": "https://www.sap.com/documents/2022/02/fa865ea4-167e-0010-bca6-c68f7e60039b.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-8V43-6XFG-43PR
Vulnerability from github – Published: 2023-12-15 06:30 – Updated: 2023-12-22 18:30ITPison OMICARD EDM’s file uploading function does not restrict upload of file with dangerous type. An unauthenticated remote attacker can exploit this vulnerability to upload and run arbitrary executable files to perform arbitrary system commands or disrupt service.
{
"affected": [],
"aliases": [
"CVE-2023-48371"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-15T04:15:06Z",
"severity": "CRITICAL"
},
"details": "ITPison OMICARD EDM\u2019s file uploading function does not restrict upload of file with dangerous type. An unauthenticated remote attacker can exploit this vulnerability to upload and run arbitrary executable files to perform arbitrary system commands or disrupt service.",
"id": "GHSA-8v43-6xfg-43pr",
"modified": "2023-12-22T18:30:30Z",
"published": "2023-12-15T06:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-48371"
},
{
"type": "WEB",
"url": "https://www.twcert.org.tw/tw/cp-132-7590-55002-1.html"
}
],
"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"
}
]
}
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.