Common Weakness Enumeration
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.
6004 vulnerabilities reference this CWE, most recent first.
CVE-2023-23607 (GCVE-0-2023-23607)
Vulnerability from cvelistv5 – Published: 2023-01-20 20:03 – Updated: 2025-03-10 21:21
VLAI
EPSS
VEX
Title
Unrestricted file upload leads to Remote Code Execution in erohtar/Dasherr
Summary
erohtar/Dasherr is a dashboard for self-hosted services. In affected versions unrestricted file upload allows any unauthenticated user to execute arbitrary code on the server. The file /www/include/filesave.php allows for any file to uploaded to anywhere. If an attacker uploads a php file they can execute code on the server. This issue has been addressed in version 1.05.00. Users are advised to upgrade. There are no known workarounds for this issue.
Severity
9.8 (Critical)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/erohtar/Dasherr/security/advis… | x_refsource_CONFIRM |
| https://github.com/erohtar/Dasherr/commit/445325c… | x_refsource_MISC |
| https://www.vicarius.io/vsociety/posts/analyzing-… |
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CVE-2023-22726 (GCVE-0-2023-22726)
Vulnerability from cvelistv5 – Published: 2023-01-20 21:02 – Updated: 2025-03-10 21:21
VLAI
EPSS
VEX
Title
Unrestricted file upload leading to privilege escalation in act
Summary
act is a project which allows for local running of github actions. The artifact server that stores artifacts from Github Action runs does not sanitize path inputs. This allows an attacker to download and overwrite arbitrary files on the host from a Github Action. This issue may lead to privilege escalation. The /upload endpoint is vulnerable to path traversal as filepath is user controlled, and ultimately flows into os.Mkdir and os.Open. The /artifact endpoint is vulnerable to path traversal as the path is variable is user controlled, and the specified file is ultimately returned by the server. This has been addressed in version 0.2.40. Users are advised to upgrade. Users unable to upgrade may, during implementation of Open and OpenAtEnd for FS, ensure to use ValidPath() to check against path traversal or clean the user-provided paths manually.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://github.com/nektos/act/security/advisories… | x_refsource_CONFIRM |
| https://github.com/nektos/act/issues/1553 | x_refsource_MISC |
| https://github.com/nektos/act/commit/63ae215071f9… | x_refsource_MISC |
| https://github.com/nektos/act/blob/master/pkg/art… | x_refsource_MISC |
| https://github.com/nektos/act/blob/v0.2.35/pkg/ar… | x_refsource_MISC |
| https://github.com/nektos/act/blob/v0.2.35/pkg/ar… | x_refsource_MISC |
| https://securitylab.github.com/advisories/GHSL-20… | x_refsource_MISC |
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CVE-2023-22450 (GCVE-0-2023-22450)
Vulnerability from cvelistv5 – Published: 2023-06-05 23:17 – Updated: 2025-01-08 14:21
VLAI
EPSS
VEX
Summary
In Advantech WebAccss/SCADA v9.1.3 and prior, there is an arbitrary file upload vulnerability that could allow an attacker to upload an ASP script file to a webserver when logged in as manager user, which can lead to arbitrary code execution.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Advantech | WebAccess/SCADA |
Affected:
0 , ≤ v9.1.3
(custom)
|
Date Public
2023-06-01 17:00
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CVE-2023-20196 (GCVE-0-2023-20196)
Vulnerability from cvelistv5 – Published: 2023-11-01 17:01 – Updated: 2024-08-02 09:05
VLAI
EPSS
VEX
Summary
Two vulnerabilities in Cisco ISE could allow an authenticated, remote attacker to upload arbitrary files to an affected device. To exploit these vulnerabilities, an attacker must have valid Administrator credentials on the affected device. These vulnerabilities are due to improper validation of files that are uploaded to the web-based management interface. An attacker could exploit these vulnerabilities by uploading a crafted file to an affected device. A successful exploit could allow the attacker to store malicious files in specific directories on the device. The attacker could later use those files to conduct additional attacks, including executing arbitrary code on the affected device with root privileges.
Severity
4.7 (Medium)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Identity Services Engine Software |
Affected:
2.6.0
Affected: 2.6.0 p1 Affected: 2.6.0 p2 Affected: 2.6.0 p3 Affected: 2.6.0 p5 Affected: 2.6.0 p6 Affected: 2.6.0 p7 Affected: 2.6.0 p8 Affected: 2.6.0 p9 Affected: 2.6.0 p10 Affected: 2.6.0 p11 Affected: 2.6.0 p12 Affected: 2.7.0 Affected: 2.7.0 p1 Affected: 2.7.0 p2 Affected: 2.7.0 p3 Affected: 2.7.0 p4 Affected: 2.7.0 p5 Affected: 2.7.0 p6 Affected: 2.7.0 p7 Affected: 2.7.0 p9 Affected: 3.0.0 Affected: 3.0.0 p1 Affected: 3.0.0 p2 Affected: 3.0.0 p3 Affected: 3.0.0 p4 Affected: 3.0.0 p5 Affected: 3.0.0 p6 Affected: 3.0.0 p7 Affected: 3.1.0 Affected: 3.1.0 p1 Affected: 3.1.0 p3 Affected: 3.1.0 p4 Affected: 3.1.0 p5 Affected: 3.1.0 p6 Affected: 3.1.0 p7 Affected: 3.2.0 Affected: 3.2.0 p1 Affected: 3.2.0 p2 |
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CVE-2023-20195 (GCVE-0-2023-20195)
Vulnerability from cvelistv5 – Published: 2023-11-01 16:59 – Updated: 2024-08-02 09:05
VLAI
EPSS
VEX
Summary
Two vulnerabilities in Cisco ISE could allow an authenticated, remote attacker to upload arbitrary files to an affected device. To exploit these vulnerabilities, an attacker must have valid Administrator credentials on the affected device. These vulnerabilities are due to improper validation of files that are uploaded to the web-based management interface. An attacker could exploit these vulnerabilities by uploading a crafted file to an affected device. A successful exploit could allow the attacker to store malicious files in specific directories on the device. The attacker could later use those files to conduct additional attacks, including executing arbitrary code on the affected device with root privileges.
Severity
4.7 (Medium)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Identity Services Engine Software |
Affected:
2.6.0
Affected: 2.6.0 p1 Affected: 2.6.0 p2 Affected: 2.6.0 p3 Affected: 2.6.0 p5 Affected: 2.6.0 p6 Affected: 2.6.0 p7 Affected: 2.6.0 p8 Affected: 2.6.0 p9 Affected: 2.6.0 p10 Affected: 2.6.0 p11 Affected: 2.6.0 p12 Affected: 2.7.0 Affected: 2.7.0 p1 Affected: 2.7.0 p2 Affected: 2.7.0 p3 Affected: 2.7.0 p4 Affected: 2.7.0 p5 Affected: 2.7.0 p6 Affected: 2.7.0 p7 Affected: 2.7.0 p9 Affected: 3.0.0 Affected: 3.0.0 p1 Affected: 3.0.0 p2 Affected: 3.0.0 p3 Affected: 3.0.0 p4 Affected: 3.0.0 p5 Affected: 3.0.0 p6 Affected: 3.0.0 p7 Affected: 3.1.0 Affected: 3.1.0 p1 Affected: 3.1.0 p3 Affected: 3.1.0 p4 Affected: 3.1.0 p5 Affected: 3.1.0 p6 Affected: 3.1.0 p7 Affected: 3.2.0 Affected: 3.2.0 p1 Affected: 3.2.0 p2 |
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CVE-2023-20073 (GCVE-0-2023-20073)
Vulnerability from cvelistv5 – Published: 2023-04-05 00:00 – Updated: 2024-10-28 16:31
VLAI
EPSS
VEX
Title
Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Arbitrary File Upload Vulnerability
Summary
A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to insufficient authorization enforcement mechanisms in the context of file uploads. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to upload arbitrary files to the affected device.
Severity
5.3 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://sec.cloudapps.cisco.com/security/center/c… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Cisco | Cisco Small Business RV Series Router Firmware |
Affected:
n/a
|
Date Public
2023-02-02 00:00
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CVE-2023-7330 (GCVE-0-2023-7330)
Vulnerability from cvelistv5 – Published: 2025-11-24 20:31 – Updated: 2025-11-25 13:04 X_Known Exploited Vulnerability
VLAI
EPSS
VEX
Title
Ruijie Networks NBR Routers Unauthenticated Arbitrary File Upload via fileupload.php
Summary
Ruijie NBR series routers contain an unauthenticated arbitrary file upload vulnerability via /ddi/server/fileupload.php. The endpoint accepts attacker-supplied values in the name and uploadDir parameters and saves the provided multipart file content without adequate validation or sanitization of file type, path, or extension. A remote attacker can upload a crafted PHP file and then access it from the web root, resulting in arbitrary code execution in the context of the web service. Exploitation evidence was observed by the Shadowserver Foundation on 2025-01-14 UTC.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://github.com/projectdiscovery/nuclei-templa… | exploit |
| https://cn-sec.com/archives/1995366.html | exploit |
| https://www.cnblogs.com/Domren/articles/19093295 | exploit |
| https://rfk0z.github.io/posts/Ruijie-NBR-router-f… | exploit |
| https://www.vulncheck.com/advisories/ruijie-netwo… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Beijing Star-Net Ruijie Network Technology Co., Ltd. | NBR Series Routers |
Affected:
0
|
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CVE-2023-7309 (GCVE-0-2023-7309)
Vulnerability from cvelistv5 – Published: 2025-08-27 21:23 – Updated: 2026-05-25 23:41 X_Known Exploited Vulnerability Unsupported When Assigned
VLAI
EPSS
VEX
Title
Dahua Smart Park Integrated Management Platform Front-End Arbitrary File Upload
Summary
A path traversal vulnerability exists in the Dahua Smart Park Integrated Management Platform (also referred to as the Dahua Smart Campus Integrated Management Platform), affecting the SOAP-based GIS bitmap upload interface. The flaw allows unauthenticated remote attackers to upload arbitrary files to the server via crafted SOAP requests, including executable JSP payloads. Successful exploitation may lead to remote code execution (RCE) and full compromise of the affected system. The vulnerability is presumed to affect builds released prior to September 2023 and is said to be remediated in newer versions of the product, though the exact affected range remains undefined. Exploitation evidence was first observed by the Shadowserver Foundation on 2024-02-15 UTC.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://support.dahuatech.com/bulletin/info?IsDpV… | vendor-advisory |
| https://developer.aliyun.com/article/1333161 | technical-descriptionexploit |
| https://github.com/tequilasunsh1ne/dahua_bitmap_f… | exploit |
| https://www.vulncheck.com/advisories/dahua-smart-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zhejiang Dahua Technology Co., Ltd. | Smart Park Integrated Management Platform |
Affected:
0 , ≤ *
(custom)
|
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CVE-2023-7305 (GCVE-0-2023-7305)
Vulnerability from cvelistv5 – Published: 2025-10-15 01:24 – Updated: 2025-11-07 17:14 X_Known Exploited Vulnerability
VLAI
EPSS
VEX
Title
SmartBI RMIServlet Unrestricted File Upload RCE
Summary
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Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.smartbi.com.cn/patchinfo | release-notespatch |
| https://avd.aliyun.com/detail?id=AVD-2023-1673292 | vdb-entry |
| https://jeyiuwai.pages.dev/posts/1day-%E8%B7%9F%E… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/smartbi-rmis… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Guangzhou Smart Software Co., Ltd. | SmartBI |
Affected:
V8 , < July 2023 update
(custom)
Affected: V9 , < July 2023 update (custom) Affected: V10 , < July 2023 update (custom) |
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CVE-2023-7212 (GCVE-0-2023-7212)
Vulnerability from cvelistv5 – Published: 2024-01-07 16:31 – Updated: 2025-06-03 14:39
VLAI
EPSS
VEX
Title
DeDeCMS Backend file_class.php unrestricted upload
Summary
A vulnerability classified as critical has been found in DeDeCMS up to 5.7.112. Affected is an unknown function of the file file_class.php of the component Backend. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-249768. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.
Severity
4.7 (Medium)
4.7 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-434 - Unrestricted Upload
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.249768 | vdb-entry |
| https://vuldb.com/?ctiid.249768 | signaturepermissions-required |
| https://hmxwjm7x03.feishu.cn/docx/FPjhdYcQvocR4gx… | exploit |
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"value": "Es wurde eine kritische Schwachstelle in DeDeCMS bis 5.7.112 entdeckt. Dabei betrifft es einen unbekannter Codeteil der Datei file_class.php der Komponente Backend. Mit der Manipulation mit unbekannten Daten kann eine unrestricted upload-Schwachstelle ausgenutzt werden. Die Umsetzung des Angriffs kann dabei \u00fcber das Netzwerk erfolgen. Der Exploit steht zur \u00f6ffentlichen Verf\u00fcgung."
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 4.7,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 5.8,
"vectorString": "AV:N/AC:L/Au:M/C:P/I:P/A:P",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-434",
"description": "CWE-434 Unrestricted Upload",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2024-01-07T16:31:03.923Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"tags": [
"vdb-entry"
],
"url": "https://vuldb.com/?id.249768"
},
{
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/?ctiid.249768"
},
{
"tags": [
"exploit"
],
"url": "https://hmxwjm7x03.feishu.cn/docx/FPjhdYcQvocR4gxy34Rc0pmon5e?from=from_copylink"
}
],
"timeline": [
{
"lang": "en",
"time": "2024-01-05T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2024-01-05T01:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2024-01-05T12:03:32.000Z",
"value": "VulDB entry last update"
}
],
"title": "DeDeCMS Backend file_class.php unrestricted upload"
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2023-7212",
"datePublished": "2024-01-07T16:31:03.923Z",
"dateReserved": "2024-01-05T10:57:59.580Z",
"dateUpdated": "2025-06-03T14:39:35.133Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
Mitigation
Architecture and Design
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
Architecture and Design
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
Architecture and Design
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
Implementation
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
Architecture and Design
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
Implementation
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
Implementation
When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
Mitigation MIT-15
Architecture and Design
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
Implementation
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
Implementation
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
Architecture and Design
Operation
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
Architecture and Design
Operation
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.