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.
5995 vulnerabilities reference this CWE, most recent first.
GHSA-52HX-8455-4QWV
Vulnerability from github – Published: 2022-05-14 03:48 – Updated: 2025-10-22 00:31Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.
{
"affected": [],
"aliases": [
"CVE-2017-11357"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-08-23T17:29:00Z",
"severity": "CRITICAL"
},
"details": "Progress Telerik UI for ASP.NET AJAX before R2 2017 SP2 does not properly restrict user input to RadAsyncUpload, which allows remote attackers to perform arbitrary file uploads or execute arbitrary code.",
"id": "GHSA-52hx-8455-4qwv",
"modified": "2025-10-22T00:31:24Z",
"published": "2022-05-14T03:48:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-11357"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-11357"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/43874"
},
{
"type": "WEB",
"url": "http://www.telerik.com/support/kb/aspnet-ajax/upload-%28async%29/details/insecure-direct-object-reference"
}
],
"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-52J3-F378-P3CW
Vulnerability from github – Published: 2024-10-24 21:31 – Updated: 2024-10-25 00:33An issue in SourceCodester Purchase Order Management System v1.0 allows a remote attacker to execute arbitrary code via the /admin?page=user component
{
"affected": [],
"aliases": [
"CVE-2024-48454"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-24T19:15:15Z",
"severity": "HIGH"
},
"details": "An issue in SourceCodester Purchase Order Management System v1.0 allows a remote attacker to execute arbitrary code via the /admin?page=user component",
"id": "GHSA-52j3-f378-p3cw",
"modified": "2024-10-25T00:33:06Z",
"published": "2024-10-24T21:31:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-48454"
},
{
"type": "WEB",
"url": "https://github.com/N0zoM1z0/CVEs/blob/main/CVE-2024-48454.md"
},
{
"type": "WEB",
"url": "https://www.sourcecodester.com"
},
{
"type": "WEB",
"url": "https://www.sourcecodester.com/php/14935/purchase-order-management-system-using-php-free-source-code.html"
}
],
"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-52J8-6RX5-297X
Vulnerability from github – Published: 2024-02-20 00:30 – Updated: 2024-02-20 00:30Suite CRM version 7.14.2 allows including local php files. This is possible
because the application is vulnerable to LFI.
{
"affected": [],
"aliases": [
"CVE-2024-1644"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-20T00:15:14Z",
"severity": "CRITICAL"
},
"details": "Suite CRM version 7.14.2 allows including local php files. This is possible\n\nbecause the application is vulnerable to LFI.\n\n\n\n",
"id": "GHSA-52j8-6rx5-297x",
"modified": "2024-02-20T00:30:37Z",
"published": "2024-02-20T00:30:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-1644"
},
{
"type": "WEB",
"url": "https://fluidattacks.com/advisories/silva"
},
{
"type": "WEB",
"url": "https://github.com/salesagility/SuiteCRM"
}
],
"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-52MR-8M35-2M6V
Vulnerability from github – Published: 2022-05-24 16:50 – Updated: 2024-04-04 01:19In Directus 7 API before 2.2.1, uploading of PHP files is not blocked, leading to uploads/_/originals remote code execution.
{
"affected": [],
"aliases": [
"CVE-2019-13979"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-07-19T15:15:00Z",
"severity": "HIGH"
},
"details": "In Directus 7 API before 2.2.1, uploading of PHP files is not blocked, leading to uploads/_/originals remote code execution.",
"id": "GHSA-52mr-8m35-2m6v",
"modified": "2024-04-04T01:19:11Z",
"published": "2022-05-24T16:50:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-13979"
},
{
"type": "WEB",
"url": "https://github.com/directus/api/issues/979"
},
{
"type": "WEB",
"url": "https://github.com/directus/api/projects/42"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-52VJ-66FF-3Q3R
Vulnerability from github – Published: 2022-05-24 22:28 – Updated: 2022-05-24 22:28Eaton Intelligent Power Manager (IPM) prior to 1.69 is vulnerable to authenticated arbitrary file upload vulnerability. IPM’s maps_srv.js allows an attacker to upload a malicious NodeJS file using uploadBackgroud action. An attacker can upload a malicious code or execute any command using a specially crafted packet to exploit the vulnerability.
{
"affected": [],
"aliases": [
"CVE-2021-23280"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-04-13T19:15:00Z",
"severity": "CRITICAL"
},
"details": "Eaton Intelligent Power Manager (IPM) prior to 1.69 is vulnerable to authenticated arbitrary file upload vulnerability. IPM\u2019s maps_srv.js allows an attacker to upload a malicious NodeJS file using uploadBackgroud action. An attacker can upload a malicious code or execute any command using a specially crafted packet to exploit the vulnerability.",
"id": "GHSA-52vj-66ff-3q3r",
"modified": "2022-05-24T22:28:13Z",
"published": "2022-05-24T22:28:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-23280"
},
{
"type": "WEB",
"url": "https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/eaton-intelligent-power-manager-ipm-vulnerability-advisory.pdf"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-52X4-PCPG-9VP8
Vulnerability from github – Published: 2022-10-12 12:00 – Updated: 2022-10-13 12:00The d8s-ip-addresses package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-csv package. The affected version is 0.1.0.
{
"affected": [],
"aliases": [
"CVE-2022-42038"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-11T22:15:00Z",
"severity": "CRITICAL"
},
"details": "The d8s-ip-addresses package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-csv package. The affected version is 0.1.0.",
"id": "GHSA-52x4-pcpg-9vp8",
"modified": "2022-10-13T12:00:27Z",
"published": "2022-10-12T12:00:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-42038"
},
{
"type": "WEB",
"url": "https://github.com/democritus-project/d8s-ip-addresses/issues/14"
},
{
"type": "WEB",
"url": "https://pypi.org/project/d8s-ip-addresses"
},
{
"type": "WEB",
"url": "https://pypi.org/project/democritus-csv"
}
],
"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-5345-JC66-6PVM
Vulnerability from github – Published: 2022-10-12 12:00 – Updated: 2022-10-12 19:00The d8s-archives package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-file-system package. The affected version is 0.1.0.
{
"affected": [],
"aliases": [
"CVE-2022-41383"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-11T22:15:00Z",
"severity": "CRITICAL"
},
"details": "The d8s-archives package for Python, as distributed on PyPI, included a potential code-execution backdoor inserted by a third party. The backdoor is the democritus-file-system package. The affected version is 0.1.0.",
"id": "GHSA-5345-jc66-6pvm",
"modified": "2022-10-12T19:00:34Z",
"published": "2022-10-12T12:00:20Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-41383"
},
{
"type": "WEB",
"url": "https://github.com/democritus-project/d8s-archives/issues/13"
},
{
"type": "WEB",
"url": "https://pypi.org/project/d8s-archives"
},
{
"type": "WEB",
"url": "https://pypi.org/project/democritus-file-system"
}
],
"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-534F-4CXM-43GW
Vulnerability from github – Published: 2026-01-14 00:31 – Updated: 2026-01-14 00:31NanoCMS 0.4 contains an authenticated file upload vulnerability that allows remote code execution through unvalidated page content creation. Authenticated attackers can upload PHP files with arbitrary code to the server's pages directory by exploiting the page creation mechanism without proper input sanitization.
{
"affected": [],
"aliases": [
"CVE-2022-50898"
],
"database_specific": {
"cwe_ids": [
"CWE-434",
"CWE-94"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-13T23:15:51Z",
"severity": "HIGH"
},
"details": "NanoCMS 0.4 contains an authenticated file upload vulnerability that allows remote code execution through unvalidated page content creation. Authenticated attackers can upload PHP files with arbitrary code to the server\u0027s pages directory by exploiting the page creation mechanism without proper input sanitization.",
"id": "GHSA-534f-4cxm-43gw",
"modified": "2026-01-14T00:31:27Z",
"published": "2026-01-14T00:31:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50898"
},
{
"type": "WEB",
"url": "https://github.com/ishell/Exploits-Archives/blob/master/2009-exploits/0904-exploits/nanocms-multi.txt"
},
{
"type": "WEB",
"url": "https://github.com/kalyan02/NanoCMS"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/50997"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/nanocms-remote-code-execution-rce-authenticated"
}
],
"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:H/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-535H-MV4W-87CJ
Vulnerability from github – Published: 2025-12-29 18:30 – Updated: 2025-12-29 18:30CWE-434 Unrestricted Upload of File with Dangerous Type
{
"affected": [],
"aliases": [
"CVE-2025-55061"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-29T18:15:43Z",
"severity": "HIGH"
},
"details": "CWE-434 Unrestricted Upload of File with Dangerous Type",
"id": "GHSA-535h-mv4w-87cj",
"modified": "2025-12-29T18:30:55Z",
"published": "2025-12-29T18:30:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-55061"
},
{
"type": "WEB",
"url": "https://www.gov.il/en/departments/dynamiccollectors/cve_advisories_listing?skip=0"
}
],
"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-5369-CWVV-7R63
Vulnerability from github – Published: 2026-02-04 09:30 – Updated: 2026-02-04 09:30A non-administrative user can upload malicious files. When an administrator or the product accesses that file, an arbitrary script may be executed on the administrator's browser. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well.
{
"affected": [],
"aliases": [
"CVE-2026-23704"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-04T07:16:01Z",
"severity": "MODERATE"
},
"details": "A non-administrative user can upload malicious files. When an administrator or the product accesses that file, an arbitrary script may be executed on the administrator\u0027s browser. Note that Movable Type 7 series and 8.4 series, which are End-of-Life (EOL), are affected by the vulnerability as well.",
"id": "GHSA-5369-cwvv-7r63",
"modified": "2026-02-04T09:30:28Z",
"published": "2026-02-04T09:30:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-23704"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/jp/JVN45405689"
},
{
"type": "WEB",
"url": "https://movabletype.org/news/2026/02/mt-906-released.html"
},
{
"type": "WEB",
"url": "https://www.sixapart.jp/movabletype/news/2026/02/04-1100.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/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"
}
]
}
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.