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.
5971 vulnerabilities reference this CWE, most recent first.
GHSA-MJCC-XMV3-J3FR
Vulnerability from github – Published: 2025-12-18 09:30 – Updated: 2026-01-20 15:32Unrestricted Upload of File with Dangerous Type vulnerability in RedefiningTheWeb WordPress Contact Form 7 PDF, Google Sheet & Database rtwwcfp-wordpress-contact-form-7-pdf allows Using Malicious Files.This issue affects WordPress Contact Form 7 PDF, Google Sheet & Database: from n/a through <= 3.0.0.
{
"affected": [],
"aliases": [
"CVE-2025-64231"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-18T08:16:12Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in RedefiningTheWeb WordPress Contact Form 7 PDF, Google Sheet \u0026 Database rtwwcfp-wordpress-contact-form-7-pdf allows Using Malicious Files.This issue affects WordPress Contact Form 7 PDF, Google Sheet \u0026 Database: from n/a through \u003c= 3.0.0.",
"id": "GHSA-mjcc-xmv3-j3fr",
"modified": "2026-01-20T15:32:31Z",
"published": "2025-12-18T09:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-64231"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/Wordpress/Plugin/rtwwcfp-wordpress-contact-form-7-pdf/vulnerability/wordpress-wordpress-contact-form-7-pdf-google-sheet-database-plugin-3-0-0-arbitrary-file-upload-vulnerability?_s_id=cve"
},
{
"type": "WEB",
"url": "https://vdp.patchstack.com/database/Wordpress/Plugin/rtwwcfp-wordpress-contact-form-7-pdf/vulnerability/wordpress-wordpress-contact-form-7-pdf-google-sheet-database-plugin-3-0-0-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:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MJJ5-4QC2-R6G6
Vulnerability from github – Published: 2025-01-22 15:32 – Updated: 2026-04-01 18:33Unrestricted Upload of File with Dangerous Type vulnerability in Innovative Solutions user files allows Upload a Web Shell to a Web Server. This issue affects user files: from n/a through 2.4.2.
{
"affected": [],
"aliases": [
"CVE-2025-23953"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-01-22T15:15:26Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in Innovative Solutions user files allows Upload a Web Shell to a Web Server. This issue affects user files: from n/a through 2.4.2.",
"id": "GHSA-mjj5-4qc2-r6g6",
"modified": "2026-04-01T18:33:22Z",
"published": "2025-01-22T15:32:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23953"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/user-files/vulnerability/wordpress-user-files-plugin-2-4-2-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-MJMR-R67G-P2M7
Vulnerability from github – Published: 2026-01-09 18:31 – Updated: 2026-01-09 18:31A vulnerability was found in BiggiDroid Simple PHP CMS 1.0. This impacts an unknown function of the file /admin/editsite.php. The manipulation of the argument image results in unrestricted upload. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
{
"affected": [],
"aliases": [
"CVE-2025-15495"
],
"database_specific": {
"cwe_ids": [
"CWE-284",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-09T17:15:52Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in BiggiDroid Simple PHP CMS 1.0. This impacts an unknown function of the file /admin/editsite.php. The manipulation of the argument image results in unrestricted upload. The attack can be launched remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.",
"id": "GHSA-mjmr-r67g-p2m7",
"modified": "2026-01-09T18:31:37Z",
"published": "2026-01-09T18:31:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-15495"
},
{
"type": "WEB",
"url": "https://gitee.com/hdert/ck/issues/IDGO28"
},
{
"type": "WEB",
"url": "https://github.com/Asim-QAZi/RCE-Simplephpblog-biggiedroid"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.340273"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.340273"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.725890"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.726040"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-MJVV-FCGJ-HPR2
Vulnerability from github – Published: 2023-06-07 15:30 – Updated: 2024-04-04 04:39The 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.
{
"affected": [],
"aliases": [
"CVE-2020-36705"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-07T13:15:09Z",
"severity": "CRITICAL"
},
"details": "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.",
"id": "GHSA-mjvv-fcgj-hpr2",
"modified": "2024-04-04T04:39:17Z",
"published": "2023-06-07T15:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-36705"
},
{
"type": "WEB",
"url": "https://blog.nintechnet.com/critical-vulnerability-in-adning-advertising-plugin-actively-exploited-in-the-wild"
},
{
"type": "WEB",
"url": "https://codecanyon.net/item/wp-pro-advertising-system-all-in-one-ad-manager/269693"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/e9873fe3-fc06-4a52-aa32-6922cab7830c"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/blog/2020/07/critical-vulnerabilities-patched-in-adning-advertising-plugin"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/4a263b74-e9ae-4fd2-be9b-9b8e9eee5982?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-MJW6-8QWV-M8MG
Vulnerability from github – Published: 2023-07-06 21:15 – Updated: 2024-04-04 05:48OMICARD EDM backend system’s file uploading function does not restrict upload of file with dangerous type. A local area network attacker with administrator privileges can exploit this vulnerability to upload and run arbitrary executable files to perform arbitrary system commands or disrupt service.
{
"affected": [],
"aliases": [
"CVE-2023-28700"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-02T11:15:10Z",
"severity": "MODERATE"
},
"details": "OMICARD EDM backend system\u2019s file uploading function does not restrict upload of file with dangerous type. A local area network attacker with administrator privileges can exploit this vulnerability to upload and run arbitrary executable files to perform arbitrary system commands or disrupt service.",
"id": "GHSA-mjw6-8qwv-m8mg",
"modified": "2024-04-04T05:48:35Z",
"published": "2023-07-06T21:15:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-28700"
},
{
"type": "WEB",
"url": "https://www.twcert.org.tw/tw/cp-132-7144-b7536-1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MJXX-858F-XW63
Vulnerability from github – Published: 2025-05-22 12:30 – Updated: 2025-05-22 12:30Zohocorp ManageEngine ServiceDesk Plus MSP and SupportCenter Plus versions below 14920 are vulnerable to authenticated Local File Inclusion (LFI) in the Admin module, where help card content is loaded.
{
"affected": [],
"aliases": [
"CVE-2025-3444"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-22T11:15:52Z",
"severity": "MODERATE"
},
"details": "Zohocorp ManageEngine ServiceDesk Plus MSP and SupportCenter Plus versions below 14920 are vulnerable to authenticated Local File Inclusion (LFI) in the Admin module, where help card content is loaded.",
"id": "GHSA-mjxx-858f-xw63",
"modified": "2025-05-22T12:30:29Z",
"published": "2025-05-22T12:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3444"
},
{
"type": "WEB",
"url": "https://www.manageengine.com/products/service-desk-msp/cve-2025-3444.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MM24-RJWQ-F95C
Vulnerability from github – Published: 2024-02-06 00:30 – Updated: 2024-02-06 00:30The Unlimited Addons for WPBakery Page Builder plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the 'importZipFile' function in versions up to, and including, 1.0.42. This makes it possible for authenticated attackers with a role that the administrator previously granted access to the plugin (the default is editor role, but access can also be granted to contributor role), to upload arbitrary files on the affected site's server which may make remote code execution possible.
{
"affected": [],
"aliases": [
"CVE-2023-6925"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-05T22:15:57Z",
"severity": "HIGH"
},
"details": "The Unlimited Addons for WPBakery Page Builder plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation on the \u0027importZipFile\u0027 function in versions up to, and including, 1.0.42. This makes it possible for authenticated attackers with a role that the administrator previously granted access to the plugin (the default is editor role, but access can also be granted to contributor role), to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible.",
"id": "GHSA-mm24-rjwq-f95c",
"modified": "2024-02-06T00:30:26Z",
"published": "2024-02-06T00:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-6925"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/unlimited-addons-for-wpbakery-page-builder/trunk/inc_php/layouts/unitecreator_layouts_exporter.class.php?rev=2900676#L703"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/a78b76d6-4068-4141-9726-7db439aa6a9f?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MM32-FP7Q-H532
Vulnerability from github – Published: 2022-05-24 17:39 – Updated: 2024-04-04 03:04An issue was discovered on ASUS DSL-N14U-B1 1.1.2.3_805 devices. An attacker can upload arbitrary file content as a firmware update when the filename Settings_DSL-N14U-B1.trx is used. Once this file is loaded, shutdown measures on a wide range of services are triggered as if it were a real update, resulting in a persistent outage of those services.
{
"affected": [],
"aliases": [
"CVE-2021-3166"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-01-18T05:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered on ASUS DSL-N14U-B1 1.1.2.3_805 devices. An attacker can upload arbitrary file content as a firmware update when the filename Settings_DSL-N14U-B1.trx is used. Once this file is loaded, shutdown measures on a wide range of services are triggered as if it were a real update, resulting in a persistent outage of those services.",
"id": "GHSA-mm32-fp7q-h532",
"modified": "2024-04-04T03:04:07Z",
"published": "2022-05-24T17:39:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3166"
},
{
"type": "WEB",
"url": "https://github.com/kaisersource/kaisersource.github.io/blob/main/_posts/2021-01-17-dsl-n14u.md"
},
{
"type": "WEB",
"url": "https://kaisersource.github.io/dsl-n14u"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MM3J-JM95-33FW
Vulnerability from github – Published: 2025-06-17 15:31 – Updated: 2026-04-01 18:35Unrestricted Upload of File with Dangerous Type vulnerability in RomanCode MapSVG allows Upload a Web Shell to a Web Server. This issue affects MapSVG: from n/a through 8.5.32.
{
"affected": [],
"aliases": [
"CVE-2025-47559"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-06-17T15:15:43Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in RomanCode MapSVG allows Upload a Web Shell to a Web Server. This issue affects MapSVG: from n/a through 8.5.32.",
"id": "GHSA-mm3j-jm95-33fw",
"modified": "2026-04-01T18:35:27Z",
"published": "2025-06-17T15:31:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-47559"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/mapsvg/vulnerability/wordpress-mapsvg-plugin-8-5-32-arbitrary-file-upload-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MM5H-C8P7-5V83
Vulnerability from github – Published: 2022-01-28 00:02 – Updated: 2022-02-03 00:00A Remote Code Execution (RCE) vulnerability exists in Sourcecodester Simple Chatbot Application 1.0 ( and previous versions via the bot_avatar parameter in SystemSettings.php.
{
"affected": [],
"aliases": [
"CVE-2021-46428"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-01-27T19:15:00Z",
"severity": "CRITICAL"
},
"details": "A Remote Code Execution (RCE) vulnerability exists in Sourcecodester Simple Chatbot Application 1.0 ( and previous versions via the bot_avatar parameter in SystemSettings.php.",
"id": "GHSA-mm5h-c8p7-5v83",
"modified": "2022-02-03T00:00:35Z",
"published": "2022-01-28T00:02:01Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-46428"
},
{
"type": "WEB",
"url": "https://cxsecurity.com/issue/WLB-2022010093"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/50672"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.