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-W8JP-QW34-JRRQ
Vulnerability from github – Published: 2022-05-24 17:31 – Updated: 2023-08-16 18:30A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to upload arbitrary-sized files to specific folders on an affected device, which could lead to an unexpected device reload. The vulnerability exists because the affected software does not efficiently handle the writing of large files to specific folders on the local file system. An attacker could exploit this vulnerability by uploading files to those specific folders. A successful exploit could allow the attacker to write a file that triggers a watchdog timeout, which would cause the device to unexpectedly reload, causing a denial of service (DoS) condition.
{
"affected": [],
"aliases": [
"CVE-2020-3436"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-10-21T19:15:00Z",
"severity": "HIGH"
},
"details": "A vulnerability in the web services interface of Cisco Adaptive Security Appliance (ASA) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to upload arbitrary-sized files to specific folders on an affected device, which could lead to an unexpected device reload. The vulnerability exists because the affected software does not efficiently handle the writing of large files to specific folders on the local file system. An attacker could exploit this vulnerability by uploading files to those specific folders. A successful exploit could allow the attacker to write a file that triggers a watchdog timeout, which would cause the device to unexpectedly reload, causing a denial of service (DoS) condition.",
"id": "GHSA-w8jp-qw34-jrrq",
"modified": "2023-08-16T18:30:19Z",
"published": "2022-05-24T17:31:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-3436"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asaftd-fileup-dos-zvC7wtys"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-W8QR-PPGQ-RX7Q
Vulnerability from github – Published: 2023-11-28 09:30 – Updated: 2023-11-28 09:30Unrestricted file upload in /main/inc/ajax/exercise.ajax.php in Chamilo LMS <= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.
{
"affected": [],
"aliases": [
"CVE-2023-4225"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-11-28T08:15:09Z",
"severity": "HIGH"
},
"details": "Unrestricted file upload in `/main/inc/ajax/exercise.ajax.php` in Chamilo LMS \u003c= v1.11.24 allows authenticated attackers with learner role to obtain remote code execution via uploading of PHP files.",
"id": "GHSA-w8qr-ppgq-rx7q",
"modified": "2023-11-28T09:30:27Z",
"published": "2023-11-28T09:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4225"
},
{
"type": "WEB",
"url": "https://github.com/chamilo/chamilo-lms/commit/6f32625a012d5de2dfe8edbccb4ed14a85e310d4"
},
{
"type": "WEB",
"url": "https://github.com/chamilo/chamilo-lms/commit/e864127a440c2cab0eb62c113a04e2e904543a1f"
},
{
"type": "WEB",
"url": "https://github.com/chamilo/chamilo-lms/commit/f3d62b65ad60d68096c2674d5695339f04de0b8a"
},
{
"type": "WEB",
"url": "https://starlabs.sg/advisories/23/23-4225"
},
{
"type": "WEB",
"url": "https://support.chamilo.org/projects/chamilo-18/wiki/security_issues#Issue-129-2023-09-04-Critical-impact-Moderate-risk-Authenticated-users-may-gain-unauthenticated-RCE-CVE-2023-4223CVE-2023-4224CVE-2023-4225CVE-2023-4226"
}
],
"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-W8RH-56H9-RXG5
Vulnerability from github – Published: 2025-05-09 09:33 – Updated: 2026-04-08 21:33The 1 Click WordPress Migration Plugin – 100% FREE for a limited time plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the 'start_restore' function in all versions up to, and including, 2.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
{
"affected": [],
"aliases": [
"CVE-2025-3455"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-09T07:16:10Z",
"severity": "HIGH"
},
"details": "The 1 Click WordPress Migration Plugin \u2013 100% FREE for a limited time plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the \u0027start_restore\u0027 function in all versions up to, and including, 2.2. This makes it possible for authenticated attackers, with Subscriber-level access and above, to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible.",
"id": "GHSA-w8rh-56h9-rxg5",
"modified": "2026-04-08T21:33:04Z",
"published": "2025-05-09T09:33:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3455"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/1-click-migration/trunk/inc/backup/class-ocm-backup.php#L403"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3372639/1-click-migration/trunk/inc/backup/class-ocm-backup.php"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/e982ae88-cfd0-46b9-ad64-00e398d307d6?source=cve"
}
],
"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-W8XH-93QH-35VW
Vulnerability from github – Published: 2022-04-13 00:00 – Updated: 2022-04-22 20:28An arbitrary file upload vulnerability in the file upload module of PayloadCMS v0.15.0 allows attackers to execute arbitrary code via a crafted SVG file.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.15.0"
},
"package": {
"ecosystem": "npm",
"name": "payload"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.15.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-27952"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": true,
"github_reviewed_at": "2022-04-22T20:28:59Z",
"nvd_published_at": "2022-04-12T17:15:00Z",
"severity": "CRITICAL"
},
"details": "An arbitrary file upload vulnerability in the file upload module of PayloadCMS v0.15.0 allows attackers to execute arbitrary code via a crafted SVG file.",
"id": "GHSA-w8xh-93qh-35vw",
"modified": "2022-04-22T20:28:59Z",
"published": "2022-04-13T00:00:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-27952"
},
{
"type": "PACKAGE",
"url": "https://github.com/payloadcms/payload"
},
{
"type": "WEB",
"url": "https://www.youtube.com/watch?v=6CfhAxA3xdQ"
}
],
"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 Payload"
}
GHSA-W92M-Q3FF-MG4M
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-2025-54444"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-23T06:15:26Z",
"severity": "CRITICAL"
},
"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-w92m-q3ff-mg4m",
"modified": "2025-07-23T06:33:51Z",
"published": "2025-07-23T06:33:51Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54444"
},
{
"type": "WEB",
"url": "https://security.samsungtv.com/securityUpdates"
}
],
"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-W93M-VPF6-MMMJ
Vulnerability from github – Published: 2022-05-14 01:14 – Updated: 2022-05-14 01:14Western Bridge Cobub Razor 0.8.0 has a file upload vulnerability via the web/assets/swf/uploadify.php URI, as demonstrated by a .php file with the image/jpeg content type.
{
"affected": [],
"aliases": [
"CVE-2019-10276"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-29T07:29:00Z",
"severity": "CRITICAL"
},
"details": "Western Bridge Cobub Razor 0.8.0 has a file upload vulnerability via the web/assets/swf/uploadify.php URI, as demonstrated by a .php file with the image/jpeg content type.",
"id": "GHSA-w93m-vpf6-mmmj",
"modified": "2022-05-14T01:14:26Z",
"published": "2022-05-14T01:14:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-10276"
},
{
"type": "WEB",
"url": "https://github.com/cobub/razor/issues/168"
},
{
"type": "WEB",
"url": "https://github.com/kyrie403/Vuln/blob/master/Cobub%20Razor/Cobub%20Razor%20-%20file%20upload%20vulnerability.md"
}
],
"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-W944-78MF-7QRV
Vulnerability from github – Published: 2026-06-26 15:32 – Updated: 2026-06-26 15:32Subscriber Arbitrary File Upload in Travel Booking <= 2.2.5 versions.
{
"affected": [],
"aliases": [
"CVE-2026-56059"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-26T15:16:45Z",
"severity": "CRITICAL"
},
"details": "Subscriber Arbitrary File Upload in Travel Booking \u003c= 2.2.5 versions.",
"id": "GHSA-w944-78mf-7qrv",
"modified": "2026-06-26T15:32:16Z",
"published": "2026-06-26T15:32:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56059"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/theme/travel-booking/vulnerability/wordpress-travel-booking-theme-2-2-5-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-W9FQ-993H-JQFP
Vulnerability from github – Published: 2022-05-14 03:12 – Updated: 2022-05-14 03:12PHPOK 4.9.032 has an arbitrary file upload vulnerability in the import_f function in framework/admin/modulec_control.php, as demonstrated by uploading a .php file within a .php.zip archive, a similar issue to CVE-2018-8944.
{
"affected": [],
"aliases": [
"CVE-2018-12491"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-06-15T18:29:00Z",
"severity": "CRITICAL"
},
"details": "PHPOK 4.9.032 has an arbitrary file upload vulnerability in the import_f function in framework/admin/modulec_control.php, as demonstrated by uploading a .php file within a .php.zip archive, a similar issue to CVE-2018-8944.",
"id": "GHSA-w9fq-993h-jqfp",
"modified": "2022-05-14T03:12:11Z",
"published": "2022-05-14T03:12:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-12491"
},
{
"type": "WEB",
"url": "https://github.com/SukaraLin/php_code_audit_project/blob/master/phpok/Phpok%204.9.032%E4%BB%A3%E7%A0%81%E5%AE%A1%E8%AE%A1.md"
}
],
"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-W9G3-HC6P-QWH3
Vulnerability from github – Published: 2026-04-23 00:31 – Updated: 2026-04-23 00:31IBM Security Verify Directory (Container) 10.0.0 through 10.0.0.3 IBM Security Verify Directory could be vulnerable to malicious file upload by not validating file type. A privileged user could upload malicious files into the system that can be sent to victims for performing further attacks against the system.
{
"affected": [],
"aliases": [
"CVE-2025-36074"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-23T00:16:43Z",
"severity": "MODERATE"
},
"details": "IBM Security Verify Directory (Container) 10.0.0 through 10.0.0.3 IBM Security Verify Directory could be vulnerable to malicious file upload by not validating file type. A privileged user could upload malicious files into the system that can be sent to victims for performing further attacks against the system.",
"id": "GHSA-w9g3-hc6p-qwh3",
"modified": "2026-04-23T00:31:18Z",
"published": "2026-04-23T00:31:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-36074"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7268907"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-W9M5-85RX-QX3F
Vulnerability from github – Published: 2022-04-02 00:00 – Updated: 2022-04-10 00:01Dell Wyse Management Suite versions 2.0 through 3.5.2 contain an unrestricted file upload vulnerability. A malicious user with admin privileges can exploit this vulnerability in order to execute arbitrary code on the system.
{
"affected": [],
"aliases": [
"CVE-2022-23155"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-01T20:15:00Z",
"severity": "HIGH"
},
"details": "Dell Wyse Management Suite versions 2.0 through 3.5.2 contain an unrestricted file upload vulnerability. A malicious user with admin privileges can exploit this vulnerability in order to execute arbitrary code on the system.",
"id": "GHSA-w9m5-85rx-qx3f",
"modified": "2022-04-10T00:01:08Z",
"published": "2022-04-02T00:00:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-23155"
},
{
"type": "WEB",
"url": "https://www.dell.com/support/kbdoc/000195918"
}
],
"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"
}
]
}
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.