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.
6398 vulnerabilities reference this CWE, most recent first.
GHSA-F29R-MH79-F49Q
Vulnerability from github – Published: 2026-08-18 15:31 – Updated: 2026-08-18 15:31Unauthenticated Arbitrary File Upload in Piotnet Addons For Elementor Pro <= 7.1.67 versions.
{
"affected": [],
"aliases": [
"CVE-2026-28192"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-18T14:17:02Z",
"severity": "CRITICAL"
},
"details": "Unauthenticated Arbitrary File Upload in Piotnet Addons For Elementor Pro \u003c= 7.1.67 versions.",
"id": "GHSA-f29r-mh79-f49q",
"modified": "2026-08-18T15:31:45Z",
"published": "2026-08-18T15:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-28192"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/wordpress/plugin/piotnet-addons-for-elementor-pro/vulnerability/wordpress-piotnet-addons-for-elementor-pro-plugin-7-1-67-arbitrary-file-upload-vulnerability?_s_id=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-F29X-GRFX-HQ5R
Vulnerability from github – Published: 2022-05-24 17:42 – Updated: 2023-11-14 18:30PHPGurukul Car Rental Project version 2.0 suffers from a remote shell upload vulnerability in changeimage1.php.
{
"affected": [],
"aliases": [
"CVE-2021-26809"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-02-17T15:15:00Z",
"severity": "CRITICAL"
},
"details": "PHPGurukul Car Rental Project version 2.0 suffers from a remote shell upload vulnerability in changeimage1.php.",
"id": "GHSA-f29x-grfx-hq5r",
"modified": "2023-11-14T18:30:18Z",
"published": "2022-05-24T17:42:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26809"
},
{
"type": "WEB",
"url": "https://packetstormsecurity.com/files/161267/Car-Rental-Project-2.0-Shell-Upload.html"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/49520"
}
],
"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-F2F3-9XW6-R52M
Vulnerability from github – Published: 2022-12-03 09:30 – Updated: 2022-12-06 15:30A vulnerability, which was classified as critical, has been found in FeMiner wms. Affected by this issue is some unknown functionality of the file /product/savenewproduct.php?flag=1. The manipulation of the argument upfile 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-214760.
{
"affected": [],
"aliases": [
"CVE-2022-4272"
],
"database_specific": {
"cwe_ids": [
"CWE-266",
"CWE-284",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-03T09:15:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability, which was classified as critical, has been found in FeMiner wms. Affected by this issue is some unknown functionality of the file /product/savenewproduct.php?flag=1. The manipulation of the argument upfile 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-214760.",
"id": "GHSA-f2f3-9xw6-r52m",
"modified": "2022-12-06T15:30:30Z",
"published": "2022-12-03T09:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-4272"
},
{
"type": "WEB",
"url": "https://github.com/FeMiner/wms/issues/14"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.214760"
},
{
"type": "WEB",
"url": "http://www.openwall.com/lists/oss-security/2023/04/26/1"
}
],
"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-F2FM-6XQ7-V8J8
Vulnerability from github – Published: 2023-06-20 15:31 – Updated: 2024-04-04 04:58File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.
{
"affected": [],
"aliases": [
"CVE-2020-20735"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-20T15:15:10Z",
"severity": "CRITICAL"
},
"details": "File Upload vulnerability in LJCMS v.4.3.R60321 allows a remote attacker to execute arbitrary code via the ljcms/index.php parameter.",
"id": "GHSA-f2fm-6xq7-v8j8",
"modified": "2024-04-04T04:58:43Z",
"published": "2023-06-20T15:31:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-20735"
},
{
"type": "WEB",
"url": "https://github.com/0xyu/PHP_Learning/issues/2"
}
],
"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-F2GW-3CQW-XMJ7
Vulnerability from github – Published: 2024-08-13 06:30 – Updated: 2024-12-10 09:31SAP BusinessObjects Business Intelligence Platform allows an authenticated attacker to upload malicious code over the network, that could be executed by the application. On successful exploitation, the attacker can cause a low impact on the Integrity of the application.
{
"affected": [],
"aliases": [
"CVE-2024-28166"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-08-13T04:15:06Z",
"severity": "LOW"
},
"details": "SAP BusinessObjects Business Intelligence\n Platform allows an authenticated attacker to upload malicious code over the\n network, that could be executed by the application. On successful\n exploitation, the attacker can cause a low impact on the Integrity of the\n application.",
"id": "GHSA-f2gw-3cqw-xmj7",
"modified": "2024-12-10T09:31:18Z",
"published": "2024-08-13T06:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-28166"
},
{
"type": "WEB",
"url": "https://me.sap.com/notes/3433545"
},
{
"type": "WEB",
"url": "https://me.sap.com/notes/3515653"
},
{
"type": "WEB",
"url": "https://url.sap/sapsecuritypatchday"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-F2JF-X5M2-C7QH
Vulnerability from github – Published: 2025-12-23 00:30 – Updated: 2025-12-23 00:30WebTareas 2.4 contains a file upload vulnerability that allows authenticated users to upload malicious PHP files through the chat photo upload functionality. Attackers can upload a PHP file with arbitrary code to the /files/Messages/ directory and execute it directly through the generated file path.
{
"affected": [],
"aliases": [
"CVE-2023-53971"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-22T22:16:02Z",
"severity": "HIGH"
},
"details": "WebTareas 2.4 contains a file upload vulnerability that allows authenticated users to upload malicious PHP files through the chat photo upload functionality. Attackers can upload a PHP file with arbitrary code to the /files/Messages/ directory and execute it directly through the generated file path.",
"id": "GHSA-f2jf-x5m2-c7qh",
"modified": "2025-12-23T00:30:31Z",
"published": "2025-12-23T00:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-53971"
},
{
"type": "WEB",
"url": "https://sourceforge.net/projects/webtareas"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/51089"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/webtareas-authenticated-remote-code-execution-via-file-upload"
}
],
"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-F2VH-3GHC-C5XC
Vulnerability from github – Published: 2026-08-11 21:33 – Updated: 2026-08-11 21:33The InstaWP Connect – 1-click WP Staging & Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 0.1.3.6 via the (top-level script) function. This is due to the plugin stores its encrypted options file as options-{migrate_key}.txt in wp-content/instawpbackups/ without deploying an index.php or .htaccess to prevent directory listing, exposing the 40-character migrate_key on Apache servers with directory indexing enabled, which allows an attacker to derive the AES-256-CBC passphrase via SHA256(migrate_key), decrypt the options file to recover the api_signature. This makes it possible for unauthenticated attackers to get the database access details and api_signature. Exploitation requires the target WordPress site to be hosted on Apache with directory listing enabled (Options +Indexes) for the wp-content/instawpbackups/ directory, and time limited because it can only be exploited during the migration period.
{
"affected": [],
"aliases": [
"CVE-2026-13457"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-11T20:17:26Z",
"severity": "HIGH"
},
"details": "The InstaWP Connect \u2013 1-click WP Staging \u0026 Migration plugin for WordPress is vulnerable to Remote Code Execution in all versions up to, and including, 0.1.3.6 via the (top-level script) function. This is due to the plugin stores its encrypted options file as options-{migrate_key}.txt in wp-content/instawpbackups/ without deploying an index.php or .htaccess to prevent directory listing, exposing the 40-character migrate_key on Apache servers with directory indexing enabled, which allows an attacker to derive the AES-256-CBC passphrase via SHA256(migrate_key), decrypt the options file to recover the api_signature. This makes it possible for unauthenticated attackers to get the database access details and api_signature. Exploitation requires the target WordPress site to be hosted on Apache with directory listing enabled (Options +Indexes) for the wp-content/instawpbackups/ directory, and time limited because it can only be exploited during the migration period.",
"id": "GHSA-f2vh-3ghc-c5xc",
"modified": "2026-08-11T21:33:09Z",
"published": "2026-08-11T21:33:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13457"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/instawp-connect/tags/0.1.3.4/includes/class-instawp-tools.php#L105"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/3634049/instawp-connect"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/f5319467-92f6-4d4f-a76a-12aeb25d3c6b?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:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-F2VV-V8XV-QGM8
Vulnerability from github – Published: 2022-05-24 16:56 – Updated: 2024-04-04 01:58An Improper Access Control: CWE-284 vulnerability exists in U.motion Server (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, MEG6260-0415 - U.motion KNX Server Plus, Touch 15), which could allow a user with low privileges to upload a rogue file.
{
"affected": [],
"aliases": [
"CVE-2019-6839"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-17T20:15:00Z",
"severity": "HIGH"
},
"details": "An Improper Access Control: CWE-284 vulnerability exists in U.motion Server (MEG6501-0001 - U.motion KNX server, MEG6501-0002 - U.motion KNX Server Plus, MEG6260-0410 - U.motion KNX Server Plus, Touch 10, MEG6260-0415 - U.motion KNX Server Plus, Touch 15), which could allow a user with low privileges to upload a rogue file.",
"id": "GHSA-f2vv-v8xv-qgm8",
"modified": "2024-04-04T01:58:02Z",
"published": "2022-05-24T16:56:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-6839"
},
{
"type": "WEB",
"url": "https://www.schneider-electric.com/ww/en/download/document/SEVD-2019-253-01"
},
{
"type": "WEB",
"url": "https://www.se.com/ww/en/download/document/SEVD-2019-253-01"
}
],
"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-F33H-GM37-5R83
Vulnerability from github – Published: 2025-04-19 09:31 – Updated: 2025-04-19 09:31The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
{
"affected": [],
"aliases": [
"CVE-2021-4455"
],
"database_specific": {
"cwe_ids": [
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-19T08:15:13Z",
"severity": "CRITICAL"
},
"details": "The Wordpress Plugin Smart Product Review plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in all versions up to, and including, 1.0.4. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site\u0027s server which may make remote code execution possible.",
"id": "GHSA-f33h-gm37-5r83",
"modified": "2025-04-19T09:31:06Z",
"published": "2025-04-19T09:31:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4455"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/50533"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1de9183c-95b9-4500-85e2-08dcee956360?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-F35M-48C3-V5MQ
Vulnerability from github – Published: 2022-06-03 00:00 – Updated: 2022-06-10 00:00SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.
{
"affected": [],
"aliases": [
"CVE-2021-26634"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-288",
"CWE-434"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-06-02T14:15:00Z",
"severity": "CRITICAL"
},
"details": "SQL injection and file upload attacks are possible due to insufficient validation of input values in some parameters and variables of files compromising Maxboard, which may lead to arbitrary code execution or privilege escalation. Attackers can use these vulnerabilities to perform attacks such as stealing server management rights using a web shell.",
"id": "GHSA-f35m-48c3-v5mq",
"modified": "2022-06-10T00:00:55Z",
"published": "2022-06-03T00:00:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26634"
},
{
"type": "WEB",
"url": "https://www.krcert.or.kr/krcert/secNoticeView.do?bulletin_writing_sequence=66746"
}
],
"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"
}
]
}
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.