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.
5972 vulnerabilities reference this CWE, most recent first.
GHSA-4CFR-GJFX-FJ3X
Vulnerability from github – Published: 2021-10-05 17:53 – Updated: 2024-09-13 17:50Cobbler before 3.3.0 allows arbitrary file write operations via upload_log_data.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "cobbler"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "3.3.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-40324"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2021-10-05T15:51:30Z",
"nvd_published_at": "2021-10-04T06:15:00Z",
"severity": "HIGH"
},
"details": "Cobbler before 3.3.0 allows arbitrary file write operations via upload_log_data.",
"id": "GHSA-4cfr-gjfx-fj3x",
"modified": "2024-09-13T17:50:11Z",
"published": "2021-10-05T17:53:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-40324"
},
{
"type": "WEB",
"url": "https://github.com/cobbler/cobbler/commit/d8f60bbf14a838c8c8a1dba98086b223e35fe70a"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-4cfr-gjfx-fj3x"
},
{
"type": "PACKAGE",
"url": "https://github.com/cobbler/cobbler"
},
{
"type": "WEB",
"url": "https://github.com/cobbler/cobbler/releases/tag/v3.3.0"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/cobbler/PYSEC-2021-374.yaml"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Cobbler before 3.3.0 allows arbitrary file write operations via upload_log_data."
}
GHSA-4CJ8-G9CP-V5WR
Vulnerability from github – Published: 2018-10-22 18:53 – Updated: 2022-09-14 19:19Unauthenticated arbitrary file upload vulnerability in Blueimp jQuery-File-Upload <= v9.22.0
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 9.22.0"
},
"package": {
"ecosystem": "npm",
"name": "blueimp-file-upload"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "9.22.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2018-9206"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T20:58:08Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "Unauthenticated arbitrary file upload vulnerability in Blueimp jQuery-File-Upload \u003c= v9.22.0",
"id": "GHSA-4cj8-g9cp-v5wr",
"modified": "2022-09-14T19:19:04Z",
"published": "2018-10-22T18:53:56Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-9206"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-4cj8-g9cp-v5wr"
},
{
"type": "WEB",
"url": "https://wpvulndb.com/vulnerabilities/9136"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/45790"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/46182"
},
{
"type": "WEB",
"url": "https://www.oracle.com/technetwork/security-advisory/cpujan2019-5072801.html"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105679"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/106629"
},
{
"type": "WEB",
"url": "http://www.vapidlabs.com/advisory.php?v=204"
}
],
"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": "Unrestricted Upload of File with Dangerous Type in blueimp-file-upload"
}
GHSA-4CM3-MRV7-6HXX
Vulnerability from github – Published: 2025-12-10 12:31 – Updated: 2025-12-10 12:31The Video Merchant plugin for WordPress is vulnerable to Cross-Site Request Forgery in version <= 5.0.4. This is due to missing or incorrect nonce validation on the video_merchant_add_video_file() function. This makes it possible for unauthenticated attackers to upload arbitrary files that make remote code execution possible via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
{
"affected": [],
"aliases": [
"CVE-2025-14390"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-10T10:16:01Z",
"severity": "HIGH"
},
"details": "The Video Merchant plugin for WordPress is vulnerable to Cross-Site Request Forgery in version \u003c= 5.0.4. This is due to missing or incorrect nonce validation on the video_merchant_add_video_file() function. This makes it possible for unauthenticated attackers to upload arbitrary files that make remote code execution possible via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.",
"id": "GHSA-4cm3-mrv7-6hxx",
"modified": "2025-12-10T12:31:27Z",
"published": "2025-12-10T12:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-14390"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/video-merchant"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/7cbe39ae-d10b-432f-afab-682948de2521?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4CP2-CR6X-CJ92
Vulnerability from github – Published: 2022-05-24 19:21 – Updated: 2022-05-24 19:21A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar function, could bypass the original limit, upload the JSP file to get a WebShell
{
"affected": [],
"aliases": [
"CVE-2021-44093"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-11-28T21:15:00Z",
"severity": "CRITICAL"
},
"details": "A Remote Command Execution vulnerability on the background in zrlog 2.2.2, at the upload avatar function, could bypass the original limit, upload the JSP file to get a WebShell",
"id": "GHSA-4cp2-cr6x-cj92",
"modified": "2022-05-24T19:21:19Z",
"published": "2022-05-24T19:21:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-44093"
},
{
"type": "WEB",
"url": "https://github.com/94fzb/zrlog/issues/115"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4CV3-V7PV-RFHF
Vulnerability from github – Published: 2025-03-20 12:32 – Updated: 2025-03-21 21:56In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the LightningApp when running on a Windows host. The vulnerability occurs at the /api/v1/upload_file/ endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "pytorch-lightning"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "2.4.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2024-8019"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2025-03-21T21:56:03Z",
"nvd_published_at": "2025-03-20T10:15:39Z",
"severity": "CRITICAL"
},
"details": "In lightning-ai/pytorch-lightning version 2.3.2, a vulnerability exists in the `LightningApp` when running on a Windows host. The vulnerability occurs at the `/api/v1/upload_file/` endpoint, allowing an attacker to write or overwrite arbitrary files by providing a crafted filename. This can lead to potential remote code execution (RCE) by overwriting critical files or placing malicious files in sensitive locations.",
"id": "GHSA-4cv3-v7pv-rfhf",
"modified": "2025-03-21T21:56:03Z",
"published": "2025-03-20T12:32:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-8019"
},
{
"type": "WEB",
"url": "https://github.com/lightning-ai/pytorch-lightning/commit/330af381de88cff17515418a341cbc1f9f127f9a"
},
{
"type": "PACKAGE",
"url": "https://github.com/pytorch/pytorch"
},
{
"type": "WEB",
"url": "https://huntr.com/bounties/2754298b-5af5-48ef-8b38-999093ddf2bd"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "PyTorch Lightning path traversal vulnerability"
}
GHSA-4F47-QGV4-G7JP
Vulnerability from github – Published: 2025-04-10 09:30 – Updated: 2026-04-01 18:34Unrestricted Upload of File with Dangerous Type vulnerability in Brian Batt - elearningfreak.com Insert or Embed Articulate Content into WordPress allows Upload a Web Shell to a Web Server. This issue affects Insert or Embed Articulate Content into WordPress: from n/a through 4.3000000025.
{
"affected": [],
"aliases": [
"CVE-2025-32202"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-10T08:15:17Z",
"severity": "CRITICAL"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in Brian Batt - elearningfreak.com Insert or Embed Articulate Content into WordPress allows Upload a Web Shell to a Web Server. This issue affects Insert or Embed Articulate Content into WordPress: from n/a through 4.3000000025.",
"id": "GHSA-4f47-qgv4-g7jp",
"modified": "2026-04-01T18:34:38Z",
"published": "2025-04-10T09:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32202"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/insert-or-embed-articulate-content-into-wordpress/vulnerability/wordpress-insert-or-embed-articulate-content-into-wordpress-plugin-4-3000000025-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-4F4V-5VF8-2XMF
Vulnerability from github – Published: 2026-01-13 21:31 – Updated: 2026-01-13 21:31Arbitrary file upload vulnerability exists in the web-based management interface of mobility conductors running either AOS-10 or AOS-8 operating systems. Successful exploitation could allow an authenticated malicious actor to upload arbitrary files as a privilege user and execute arbitrary commands on the underlying operating system.
{
"affected": [],
"aliases": [
"CVE-2025-37175"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-13T20:16:05Z",
"severity": "HIGH"
},
"details": "Arbitrary file upload vulnerability exists in the web-based management interface of mobility conductors running either AOS-10 or AOS-8 operating systems. Successful exploitation could allow an authenticated malicious actor to upload arbitrary files as a privilege user and execute arbitrary commands on the underlying operating system.",
"id": "GHSA-4f4v-5vf8-2xmf",
"modified": "2026-01-13T21:31:44Z",
"published": "2026-01-13T21:31:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37175"
},
{
"type": "WEB",
"url": "https://support.hpe.com/hpesc/public/docDisplay?docId=hpesbnw04987en_us\u0026docLocale=en_US"
}
],
"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-4F54-M9CC-H3CH
Vulnerability from github – Published: 2026-03-24 12:30 – Updated: 2026-03-24 12:30PhreeBooks ERP 5.2.3 contains an arbitrary file upload vulnerability in the Image Manager component that allows authenticated attackers to upload malicious files by submitting requests to the image upload endpoint. Attackers can upload PHP files through the imgFile parameter to the bizuno/image/manager endpoint and execute them via the bizunoFS.php script for remote code execution.
{
"affected": [],
"aliases": [
"CVE-2019-25630"
],
"database_specific": {
"cwe_ids": [
"CWE-434",
"CWE-79"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-24T12:16:03Z",
"severity": "HIGH"
},
"details": "PhreeBooks ERP 5.2.3 contains an arbitrary file upload vulnerability in the Image Manager component that allows authenticated attackers to upload malicious files by submitting requests to the image upload endpoint. Attackers can upload PHP files through the imgFile parameter to the bizuno/image/manager endpoint and execute them via the bizunoFS.php script for remote code execution.",
"id": "GHSA-4f54-m9cc-h3ch",
"modified": "2026-03-24T12:30:24Z",
"published": "2026-03-24T12:30:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-25630"
},
{
"type": "WEB",
"url": "https://sourceforge.net/projects/phreebooks/files/latest/download"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/46644"
},
{
"type": "WEB",
"url": "https://www.phreesoft.com"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/phreebooks-erp-arbitrary-file-upload-via-image-manager"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/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-4F9X-HMVR-7W77
Vulnerability from github – Published: 2022-05-14 01:17 – Updated: 2022-05-14 01:17In Webgalamb through 7.0, an arbitrary code execution vulnerability could be exploited remotely without authentication. Exploitation requires authentication bypass to access administrative functions of the site to upload a crafted CSV file with a malicious payload that becomes part of a PHP eval() expression in the subscriber.php file.
{
"affected": [],
"aliases": [
"CVE-2018-19514"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-21T16:00:00Z",
"severity": "CRITICAL"
},
"details": "In Webgalamb through 7.0, an arbitrary code execution vulnerability could be exploited remotely without authentication. Exploitation requires authentication bypass to access administrative functions of the site to upload a crafted CSV file with a malicious payload that becomes part of a PHP eval() expression in the subscriber.php file.",
"id": "GHSA-4f9x-hmvr-7w77",
"modified": "2022-05-14T01:17:54Z",
"published": "2022-05-14T01:17:54Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-19514"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/151017/Webgalamb-Information-Disclosure-XSS-CSRF-SQL-Injection.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2019/Jan/15"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4FRW-J2V5-2XWF
Vulnerability from github – Published: 2023-12-26 21:30 – Updated: 2024-01-04 21:30The rtMedia for WordPress, BuddyPress and bbPress WordPress plugin before 4.6.16 does not validate files to be uploaded, which could allow attackers with a low-privilege account (e.g. subscribers) to upload arbitrary files such as PHP on the server
{
"affected": [],
"aliases": [
"CVE-2023-5931"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-12-26T19:15:08Z",
"severity": "HIGH"
},
"details": "The rtMedia for WordPress, BuddyPress and bbPress WordPress plugin before 4.6.16 does not validate files to be uploaded, which could allow attackers with a low-privilege account (e.g. subscribers) to upload arbitrary files such as PHP on the server",
"id": "GHSA-4frw-j2v5-2xwf",
"modified": "2024-01-04T21:30:23Z",
"published": "2023-12-26T21:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-5931"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/3d6889e3-a01b-4e7f-868f-af7cc8c7531a"
}
],
"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.