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.
6278 vulnerabilities reference this CWE, most recent first.
CVE-2026-1813 (GCVE-0-2026-1813)
Vulnerability from cvelistv5 – Published: 2026-02-03 23:32 – Updated: 2026-02-23 09:16
VLAI
EPSS
VEX
Title
bolo-blog bolo-solo FreeMarker Template PicUploadProcessor.java unrestricted upload
Summary
A vulnerability was found in bolo-blog bolo-solo up to 2.6.4. Affected is an unknown function of the file src/main/java/org/b3log/solo/bolo/pic/PicUploadProcessor.java of the component FreeMarker Template Handler. The manipulation of the argument File results in unrestricted upload. It is possible to launch the attack remotely. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 14:18 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.343981 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.343981 | signaturepermissions-required |
| https://vuldb.com/?submit.743402 | third-party-advisory |
| https://github.com/bolo-blog/bolo-solo/issues/329 | exploitissue-tracking |
| https://github.com/bolo-blog/bolo-solo/ | product |
Impacted products
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CVE-2026-1791 (GCVE-0-2026-1791)
Vulnerability from cvelistv5 – Published: 2026-02-04 03:11 – Updated: 2026-02-04 20:19
VLAI
EPSS
VEX
Title
Arbitrary File Upload Vulnerability in Operation and Maintenance Security Gateway
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in Hillstone Networks Operation and Maintenance Security Gateway on Linux allows Upload a Web Shell to a Web Server.This issue affects Operation and Maintenance Security Gateway: V5.5ST00001B113.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 20:19 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Hillstone Networks | Operation and Maintenance Security Gateway |
Affected:
V5.5ST00001B113
cpe:2.3:a:hillstone_networks:operation_and_maintenance_security_gateway:v5.5st00001b113:*:linux:*:*:*:*:* |
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CVE-2026-1756 (GCVE-0-2026-1756)
Vulnerability from cvelistv5 – Published: 2026-02-04 06:42 – Updated: 2026-04-08 17:24
VLAI
EPSS
VEX
Title
WP FOFT Loader <= 2.1.39 - Authenticated (Author+) Arbitrary File Upload
Summary
The WP FOFT Loader plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'WP_FOFT_Loader_Mimes::file_and_ext' function in all versions up to, and including, 2.1.39. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-04 16:59 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| seezee | WP FOFT Loader |
Affected:
0 , ≤ 2.1.39
(semver)
|
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CVE-2026-1742 (GCVE-0-2026-1742)
Vulnerability from cvelistv5 – Published: 2026-02-02 03:32 – Updated: 2026-02-23 09:13
VLAI
EPSS
VEX
Title
EFM ipTIME A8004T VPN Service timepro.cgi commit_vpncli_file_upload unrestricted upload
Summary
A vulnerability was identified in EFM ipTIME A8004T 14.18.2. Affected by this vulnerability is the function commit_vpncli_file_upload of the file /cgi/timepro.cgi of the component VPN Service. Such manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-02 14:09 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.343641 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.343641 | signaturepermissions-required |
| https://vuldb.com/?submit.741450 | third-party-advisory |
| https://github.com/LX-LX88/cve/issues/29 | broken-linkexploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EFM | ipTIME A8004T |
Affected:
14.18.2
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CVE-2026-1730 (GCVE-0-2026-1730)
Vulnerability from cvelistv5 – Published: 2026-02-03 07:31 – Updated: 2026-04-08 17:20
VLAI
EPSS
VEX
Title
OS DataHub Maps <= 1.8.3 - Authenticated (Author+) Arbitrary File Upload
Summary
The OS DataHub Maps plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'OS_DataHub_Maps_Admin::add_file_and_ext' function in all versions up to, and including, 1.8.3. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-03 15:44 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| skirridsystems | OS DataHub Maps |
Affected:
0 , ≤ 1.8.3
(semver)
|
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CVE-2026-1565 (GCVE-0-2026-1565)
Vulnerability from cvelistv5 – Published: 2026-02-26 19:23 – Updated: 2026-04-08 16:43
VLAI
EPSS
VEX
Title
User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration <= 4.2.8 - Authenticated (Author+) Arbitrary File Upload
Summary
The User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration plugin for WordPress is vulnerable to arbitrary file uploads due to incorrect file type validation in the 'WPUF_Admin_Settings::check_filetype_and_ext' function and in the 'Admin_Tools::check_filetype_and_ext' function in all versions up to, and including, 4.2.8. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files on the affected site's server which may make remote code execution possible.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-26 20:45 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
6 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| wedevs | User Frontend: AI Powered Frontend Posting, User Directory, Profile, Membership & User Registration |
Affected:
0 , ≤ 4.2.8
(semver)
|
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CVE-2026-1555 (GCVE-0-2026-1555)
Vulnerability from cvelistv5 – Published: 2026-04-15 03:37 – Updated: 2026-04-15 15:53
VLAI
EPSS
VEX
Title
WebStack <= 1.2024 - Unauthenticated Arbitrary File Upload
Summary
The WebStack theme for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the io_img_upload() function in all versions up to, and including, 1.2024. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-15 15:52 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
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CVE-2026-1445 (GCVE-0-2026-1445)
Vulnerability from cvelistv5 – Published: 2026-01-26 22:02 – Updated: 2026-02-23 08:58
VLAI
EPSS
VEX
Title
iJason-Liu Books_Manager upload_bookCover.php unrestricted upload
Summary
A vulnerability was found in iJason-Liu Books_Manager up to 298ba736387ca37810466349af13a0fdf828e99c. This vulnerability affects unknown code of the file controllers/books_center/upload_bookCover.php. Performing a manipulation of the argument book_cover results in unrestricted upload. The attack may be initiated remotely. The exploit has been made public and could be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 21:38 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.342874 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.342874 | signaturepermissions-required |
| https://vuldb.com/?submit.736971 | third-party-advisory |
| https://blog.y1fan.work/2026/01/13/%E4%BB%BB%E6%8… | broken-linkexploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| iJason-Liu | Books_Manager |
Affected:
298ba736387ca37810466349af13a0fdf828e99c
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CVE-2026-1424 (GCVE-0-2026-1424)
Vulnerability from cvelistv5 – Published: 2026-01-26 07:02 – Updated: 2026-02-23 08:57 X_Freeware
VLAI
EPSS
VEX
Title
PHPGurukul News Portal Profile Pic unrestricted upload
Summary
A vulnerability was identified in PHPGurukul News Portal 1.0. This affects an unknown part of the component Profile Pic Handler. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-26 14:18 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.342840 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.342840 | signaturepermissions-required |
| https://vuldb.com/?submit.736637 | third-party-advisory |
| https://github.com/rsecroot/News-Portal/blob/main… | exploit |
| https://phpgurukul.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PHPGurukul | News Portal |
Affected:
1.0
cpe:2.3:a:phpgurukul:news_portal:*:*:*:*:*:*:*:* |
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CVE-2026-1423 (GCVE-0-2026-1423)
Vulnerability from cvelistv5 – Published: 2026-01-26 06:32 – Updated: 2026-02-23 08:57 X_Freeware
VLAI
EPSS
VEX
Title
code-projects Online Examination System admin_pic.php unrestricted upload
Summary
A vulnerability was determined in code-projects Online Examination System 1.0. Affected by this issue is some unknown functionality of the file /admin_pic.php. Executing a manipulation can lead to unrestricted upload. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-26 14:25 UTC
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.342839 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.342839 | signaturepermissions-required |
| https://vuldb.com/?submit.736607 | third-party-advisory |
| https://github.com/geo-chen/code-projects/blob/ma… | exploit |
| https://code-projects.org/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| code-projects | Online Examination System |
Affected:
1.0
|
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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.