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.
5967 vulnerabilities reference this CWE, most recent first.
GHSA-29X7-C2JF-9R9C
Vulnerability from github – Published: 2022-03-08 00:00 – Updated: 2022-03-17 00:03The All-in-One WP Migration WordPress plugin before 7.41 does not validate uploaded files' extension, which allows administrators to upload PHP files on their site, even on multisite installations.
{
"affected": [],
"aliases": [
"CVE-2021-24216"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-03-07T09:15:00Z",
"severity": "HIGH"
},
"details": "The All-in-One WP Migration WordPress plugin before 7.41 does not validate uploaded files\u0027 extension, which allows administrators to upload PHP files on their site, even on multisite installations.",
"id": "GHSA-29x7-c2jf-9r9c",
"modified": "2022-03-17T00:03:08Z",
"published": "2022-03-08T00:00:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-24216"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/2516181#file8"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/87c6052c-2628-4987-a9a3-a03b5ca1e083"
}
],
"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-2C7X-W3MX-H7P6
Vulnerability from github – Published: 2023-11-30 09:30 – Updated: 2023-12-05 22:59File Upload vulnerability in Microweber v.2.0.4 allows a remote attacker to execute arbitrary code via a crafted script to the file upload function in the created forms component.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "microweber/microweber"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "2.0.4"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-49052"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2023-11-30T19:52:08Z",
"nvd_published_at": "2023-11-30T07:15:08Z",
"severity": "HIGH"
},
"details": "File Upload vulnerability in Microweber v.2.0.4 allows a remote attacker to execute arbitrary code via a crafted script to the file upload function in the created forms component.",
"id": "GHSA-2c7x-w3mx-h7p6",
"modified": "2023-12-05T22:59:16Z",
"published": "2023-11-30T09:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-49052"
},
{
"type": "WEB",
"url": "https://github.com/Cyber-Wo0dy/CVE-2023-49052"
},
{
"type": "WEB",
"url": "https://github.com/Cyber-Wo0dy/report/blob/main/microweber/v2.0.4/microweber_unrestricted_upload"
},
{
"type": "PACKAGE",
"url": "https://github.com/microweber/microweber"
}
],
"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"
}
],
"summary": "Microweber file upload vulnerability"
}
GHSA-2C95-8839-3CVG
Vulnerability from github – Published: 2025-07-23 06:33 – Updated: 2025-07-23 06:33Unrestricted Upload of File with Dangerous Type vulnerability in Samsung Electronics MagicINFO 9 Server allows Code Injection.This issue affects MagicINFO 9 Server: less than 21.1080.0.
{
"affected": [],
"aliases": [
"CVE-2025-54441"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-23T06:15:26Z",
"severity": "HIGH"
},
"details": "Unrestricted Upload of File with Dangerous Type vulnerability in Samsung Electronics MagicINFO 9 Server allows Code Injection.This issue affects MagicINFO 9 Server: less than 21.1080.0.",
"id": "GHSA-2c95-8839-3cvg",
"modified": "2025-07-23T06:33:51Z",
"published": "2025-07-23T06:33:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54441"
},
{
"type": "WEB",
"url": "https://security.samsungtv.com/securityUpdates"
}
],
"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-2CMR-4R4H-W563
Vulnerability from github – Published: 2025-02-06 06:31 – Updated: 2025-02-06 15:32OpenPLC_V3 contains an arbitrary file upload vulnerability, which could be leveraged for malvertising or phishing campaigns.
{
"affected": [],
"aliases": [
"CVE-2025-1066"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-06T00:15:27Z",
"severity": "CRITICAL"
},
"details": "OpenPLC_V3 contains an arbitrary file upload vulnerability, which could be leveraged for malvertising or phishing campaigns.",
"id": "GHSA-2cmr-4r4h-w563",
"modified": "2025-02-06T15:32:52Z",
"published": "2025-02-06T06:31:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-1066"
},
{
"type": "WEB",
"url": "https://github.com/thiagoralves/OpenPLC_v3/commit/d1b1a3b7e97f2b3fef0876056cf9d7879991744a"
},
{
"type": "WEB",
"url": "https://medium.com/@alimuhammadsecured/cyberforce-2024-how-i-found-my-first-cve-openplcv3-16c058b114b0"
}
],
"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-2CVC-959C-65P4
Vulnerability from github – Published: 2022-05-24 17:31 – Updated: 2022-05-24 17:31An issue was discovered in Sage DPW 2020_06_x before 2020_06_002. It allows unauthenticated users to upload JavaScript (in a file) via the expenses claiming functionality. However, to view the file, authentication is required. By exploiting this vulnerability, an attacker can persistently include arbitrary HTML or JavaScript code into the affected web page. The vulnerability can be used to change the contents of the displayed site, redirect to other sites, or steal user credentials. Additionally, users are potential victims of browser exploits and JavaScript malware.
{
"affected": [],
"aliases": [
"CVE-2020-26583"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-10-16T06:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in Sage DPW 2020_06_x before 2020_06_002. It allows unauthenticated users to upload JavaScript (in a file) via the expenses claiming functionality. However, to view the file, authentication is required. By exploiting this vulnerability, an attacker can persistently include arbitrary HTML or JavaScript code into the affected web page. The vulnerability can be used to change the contents of the displayed site, redirect to other sites, or steal user credentials. Additionally, users are potential victims of browser exploits and JavaScript malware.",
"id": "GHSA-2cvc-959c-65p4",
"modified": "2022-05-24T17:31:04Z",
"published": "2022-05-24T17:31:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-26583"
},
{
"type": "WEB",
"url": "https://sec-consult.com/en/vulnerability-lab/advisories"
},
{
"type": "WEB",
"url": "https://seclists.org/fulldisclosure/2020/Oct/17"
},
{
"type": "WEB",
"url": "https://www.sagedpw.at"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-2F3X-VM73-4V2V
Vulnerability from github – Published: 2025-04-04 12:30 – Updated: 2025-04-04 12:30A vulnerability was found in SourceCodester Web-based Pharmacy Product Management System 1.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /add-admin.php of the component Create User Page. The manipulation of the argument Avatar leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
{
"affected": [],
"aliases": [
"CVE-2025-3244"
],
"database_specific": {
"cwe_ids": [
"CWE-284",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-04T12:15:16Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in SourceCodester Web-based Pharmacy Product Management System 1.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /add-admin.php of the component Create User Page. The manipulation of the argument Avatar leads to unrestricted upload. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.",
"id": "GHSA-2f3x-vm73-4v2v",
"modified": "2025-04-04T12:30:21Z",
"published": "2025-04-04T12:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3244"
},
{
"type": "WEB",
"url": "https://github.com/6s6-630/CVE/blob/main/yaofang.md"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.303271"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.303271"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.547916"
},
{
"type": "WEB",
"url": "https://www.sourcecodester.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/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-2F9C-7W3Q-922P
Vulnerability from github – Published: 2023-03-06 09:30 – Updated: 2023-03-13 18:30A vulnerability, which was classified as problematic, has been found in ECshop up to 4.1.8. Affected by this issue is some unknown functionality of the file admin/database.php of the component Backup Database Handler. The manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-222356.
{
"affected": [],
"aliases": [
"CVE-2023-1184"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-06T08:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability, which was classified as problematic, has been found in ECshop up to 4.1.8. Affected by this issue is some unknown functionality of the file admin/database.php of the component Backup Database Handler. The manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-222356.",
"id": "GHSA-2f9c-7w3q-922p",
"modified": "2023-03-13T18:30:41Z",
"published": "2023-03-06T09:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-1184"
},
{
"type": "WEB",
"url": "https://github.com/wjzdalao/ecshop4.1.8/issues/1"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.222356"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.222356"
}
],
"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-2F9C-JJ4R-FR8X
Vulnerability from github – Published: 2022-05-21 00:01 – Updated: 2022-05-27 00:00Pharmacy Management System v1.0 was discovered to contain a remote code execution (RCE) vulnerability via the component /php_action/editProductImage.php. This vulnerability allows attackers to execute arbitrary code via a crafted image file.
{
"affected": [],
"aliases": [
"CVE-2022-30887"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-05-20T13:15:00Z",
"severity": "CRITICAL"
},
"details": "Pharmacy Management System v1.0 was discovered to contain a remote code execution (RCE) vulnerability via the component /php_action/editProductImage.php. This vulnerability allows attackers to execute arbitrary code via a crafted image file.",
"id": "GHSA-2f9c-jj4r-fr8x",
"modified": "2022-05-27T00:00:55Z",
"published": "2022-05-21T00:01:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-30887"
},
{
"type": "WEB",
"url": "https://packetstormsecurity.com/files/166786/Pharmacy-Management-System-1.0-Shell-Upload.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"
}
]
}
GHSA-2FF4-CC78-4PG6
Vulnerability from github – Published: 2025-04-30 21:31 – Updated: 2025-04-30 21:31Unsafe default file type filter policy in HCL Domino Volt allows upload of .html file and execution of unsafe JavaScript in deployed applications.
{
"affected": [],
"aliases": [
"CVE-2022-27562"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-30T21:15:52Z",
"severity": "MODERATE"
},
"details": "Unsafe default file type filter policy in HCL Domino Volt allows upload of .html file and execution of unsafe JavaScript in deployed applications.",
"id": "GHSA-2ff4-cc78-4pg6",
"modified": "2025-04-30T21:31:50Z",
"published": "2025-04-30T21:31:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27562"
},
{
"type": "WEB",
"url": "https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0120722"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-2FF6-7RC2-25PR
Vulnerability from github – Published: 2025-07-31 15:35 – Updated: 2025-07-31 15:35An unauthenticated arbitrary file upload vulnerability exists in FlashChat versions 6.0.2 and 6.0.4 through 6.0.8. The upload.php endpoint fails to properly validate file types and authentication, allowing attackers to upload malicious PHP scripts. Once uploaded, these scripts can be executed remotely, resulting in arbitrary code execution as the web server user.
{
"affected": [],
"aliases": [
"CVE-2013-10038"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-31T15:15:33Z",
"severity": "CRITICAL"
},
"details": "An unauthenticated arbitrary file upload vulnerability exists in FlashChat versions 6.0.2 and 6.0.4 through 6.0.8. The upload.php endpoint fails to properly validate file types and authentication, allowing attackers to upload malicious PHP scripts. Once uploaded, these scripts can be executed remotely, resulting in arbitrary code execution as the web server user.",
"id": "GHSA-2ff6-7rc2-25pr",
"modified": "2025-07-31T15:35:50Z",
"published": "2025-07-31T15:35:50Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-10038"
},
{
"type": "WEB",
"url": "https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/unix/webapp/flashchat_upload_exec.rb"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/28709"
},
{
"type": "WEB",
"url": "https://www.fortiguard.com/encyclopedia/ips/37342/flashchat-arbitrary-file-upload"
},
{
"type": "WEB",
"url": "https://www.phpbb.com/community/viewtopic.php?t=2627786"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/flashchat-arbitrary-file-upload-rce"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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"
}
]
}
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.