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.
6387 vulnerabilities reference this CWE, most recent first.
CVE-2026-102143 (GCVE-0-2026-102143)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:10 – Updated: 2026-10-01 15:28
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Unrestricted Upload of File with Dangerous Type
Summary
An unauthenticated attacker could cause a file with attacker-controlled content to be written to the appliance filesystem through an administrative upload handler that did not properly authenticate the request. This did not by itself result in code execution, which would require a separate vulnerability to place the file in an executable location.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:14 UTC
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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CVE-2026-102137 (GCVE-0-2026-102137)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:11 – Updated: 2026-10-01 13:37
VLAI
EPSS
VEX
Title
Kiteworks Core Unrestricted Upload of File with Dangerous Type
Summary
An authenticated administrator could bypass the content validation applied to an administrative file upload and store a file containing dangerous content on the appliance. This did not by itself result in code execution, which would require a separate vulnerability to run the stored file.
Severity
4.1 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:24 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
References
Impacted products
Date Public
2026-09-30 00:00
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CVE-2026-102130 (GCVE-0-2026-102130)
Vulnerability from cvelistv5 – Published: 2026-09-30 20:13 – Updated: 2026-10-01 13:37
VLAI
EPSS
VEX
Title
Kiteworks Email Protection Gateway Remote Code Execution
Summary
Kiteworks Email Protection Gateway did not sufficiently validate the content of an uploaded backup, and allowed an administrator to influence how the application loaded it. An authenticated administrator could potentially use this to execute arbitrary code on the gateway as the underlying service account.
Severity
7.2 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 13:28 UTC
CWE
References
2 references
| URL | Tags |
|---|---|
| https://github.com/kiteworks/security-advisories/… | vendor-advisory |
| https://raw.githubusercontent.com/cisagov/CSAF/de… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Kiteworks | Email Protection Gateway |
Affected:
0 , < 9.5.1
(custom)
Unaffected: 9.5.1 |
Date Public
2026-09-30 00:00
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CVE-2026-101071 (GCVE-0-2026-101071)
Vulnerability from cvelistv5 – Published: 2026-09-28 13:30 – Updated: 2026-09-28 15:35
VLAI
EPSS
VEX
Title
Acrel Electric Unet Web Service Upload Endpoint upload unrestricted upload
Summary
A vulnerability was determined in Acrel Electric Unet Web Service up to 20260814. This vulnerability affects unknown code of the file /exchange/attachment/upload of the component Upload Endpoint. This manipulation of the argument File causes unrestricted upload. The attack can be initiated remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-28 15:34 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/410942 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/410942/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-101071 | third-party-advisory |
| https://vuldb.com/submit/929130 | third-party-advisory |
| https://github.com/WAz1nR9/CVE/blob/main/Acrel_Un… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Acrel Electric | Unet Web Service |
Affected:
20260814
cpe:2.3:a:acrel_electric:unet_web_service:*:*:*:*:*:*:*:* |
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CVE-2026-100389 (GCVE-0-2026-100389)
Vulnerability from cvelistv5 – Published: 2026-09-25 20:13 – Updated: 2026-09-30 11:15
VLAI
EPSS
VEX
Title
GestSup before 3.2.62 Remote Code Execution via IMAP Attachment
Summary
GestSup versions before 3.2.62 contain a remote code execution vulnerability in the basic IMAP connector's attachment handling that fails to skip blocked file extensions. Unauthenticated attackers can send emails with PHP attachments to monitored mailboxes, which are written to the web-accessible upload/ticket directory and executed when accessed.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 18:20 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
4 references
| URL | Tags |
|---|---|
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| https://www.vulncheck.com/advisories/gestsup-befo… | third-party-advisory |
| https://blog.spiizn.xyz/articles/remote-code-exec… | technical-descriptionexploit |
Impacted products
Date Public
2026-08-24 00:00
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CVE-2026-96515 (GCVE-0-2026-96515)
Vulnerability from cvelistv5 – Published: 2026-09-24 11:59 – Updated: 2026-09-24 14:41
VLAI
EPSS
VEX
Title
Command Injection Vulnerability in Netlink ICT HG323RW Router
Summary
This
vulnerability exists in the Netlink ICT HG323RW router due to insufficient
authorization and input validation controls in the diagnostic script import
functionality. An authenticated attacker could exploit this vulnerability by
uploading and executing a specially crafted script through the web management
interface.
Successful exploitation of this vulnerability
could allow the attacker to execute arbitrary operating system commands with
root privileges resulting in complete compromise of the affected device.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-24 14:40 UTC
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.cert-in.org.in/s2cMainServlet?pageid=… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Netlink ICT Pvt Ltd | Netlink ICT HG323RW Router |
Affected:
Hardware Version (V3.7) and Affected Firmware (3.1.02-260228 Netlinkver)
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CVE-2026-96513 (GCVE-0-2026-96513)
Vulnerability from cvelistv5 – Published: 2026-09-23 16:30 – Updated: 2026-09-23 17:59
VLAI
EPSS
VEX
Title
Neethuharii CafeManagement AddProductCode.php unrestricted upload
Summary
A security flaw has been discovered in Neethuharii CafeManagement. This issue affects some unknown processing of the file AddProductCode.php. The manipulation of the argument image results in unrestricted upload. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks. This product utilizes a rolling release system for continuous delivery, and as such, version information for affected or updated releases is not disclosed. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 17:59 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/408919 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/408919/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-96513 | third-party-advisory |
| https://vuldb.com/submit/897619 | third-party-advisory |
| https://medium.com/@mr.yk404/unauthenticated-arbi… | broken-linkexploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Neethuharii | CafeManagement |
Affected:
5f743043a9a04f903678697f061d2e220e544c09
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CVE-2026-96431 (GCVE-0-2026-96431)
Vulnerability from cvelistv5 – Published: 2026-09-29 08:35 – Updated: 2026-09-29 15:55
VLAI
EPSS
VEX
Title
Flowring Agentflow 4.0 - Unrestricted Upload of File with Dangerous Type
Summary
Unrestricted Upload of File with Dangerous Type in the
/WebAgenda/download/uploadFile.jsp API endpoint of Flowring Agentflow 4.0 version
before 2023/03/24 allows remote authenticated users to execute arbitrary
system commands via a malicious file.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-29 15:55 UTC
CWE
- CWE-434 - Unrestricted upload of file with dangerous type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://zuso.ai/cve-advisory/advisory | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Flowring Technology Corp | Agentflow 4.0 |
Affected:
0 , < 2023/03/24
(custom)
|
Date Public
2026-09-29 04:00
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CVE-2026-95830 (GCVE-0-2026-95830)
Vulnerability from cvelistv5 – Published: 2026-09-22 23:30 – Updated: 2026-09-23 14:57
VLAI
EPSS
VEX
Title
theRealSain Pixtream post_upload.php unrestricted upload
Summary
A security flaw has been discovered in theRealSain Pixtream up to 866afd4f0cea812b918780fb74b67dccf8c4d6a0. This issue affects some unknown processing of the file /post_upload.php. The manipulation of the argument media results in unrestricted upload. The attack can be launched remotely. The exploit has been released to the public and may be used for attacks. This product does not use versioning. This is why information about affected and unaffected releases are unavailable. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 14:56 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/408523 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/408523/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-95830 | third-party-advisory |
| https://vuldb.com/submit/897169 | third-party-advisory |
| https://github.com/yingxiujie/cve/issues/11 | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| theRealSain | Pixtream |
Affected:
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cpe:2.3:a:therealsain:pixtream:*:*:*:*:*:*:*:* |
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CVE-2026-95820 (GCVE-0-2026-95820)
Vulnerability from cvelistv5 – Published: 2026-09-22 22:30 – Updated: 2026-09-23 16:10
VLAI
EPSS
VEX
Title
anirbandutta9 College-Notes-Gallery userprofile.php admin1 unrestricted upload
Summary
A vulnerability was found in anirbandutta9 College-Notes-Gallery up to 8c1cf3d98f30982d069c88ca172612c001eb39f6. Affected by this issue is some unknown functionality of the file /dashboard/userprofile.php?section=admin1. Performing a manipulation of the argument image results in unrestricted upload. It is possible to initiate the attack remotely. The exploit has been made public and could be used. This product is using a rolling release to provide continious delivery. Therefore, no version details for affected nor updated releases are available. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 16:10 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/408520 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/408520/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-95820 | third-party-advisory |
| https://vuldb.com/submit/897168 | third-party-advisory |
| https://github.com/yingxiujie/cve/issues/10 | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| anirbandutta9 | College-Notes-Gallery |
Affected:
8c1cf3d98f30982d069c88ca172612c001eb39f6
cpe:2.3:a:anirbandutta9:college-notes-gallery:*:*:*:*:*:*:*:* |
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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.