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.
5965 vulnerabilities reference this CWE, most recent first.
CVE-2026-26984 (GCVE-0-2026-26984)
Vulnerability from cvelistv5 – Published: 2026-02-25 21:15 – Updated: 2026-02-25 21:42
VLAI
EPSS
VEX
Title
LORIS media module vulnerable to remote code execution
Summary
LORIS (Longitudinal Online Research and Imaging System) is a self-hosted web application that provides data- and project-management for neuroimaging research. Prior to versions 26.0.5, 27.0.2, and 28.0.0, an authenticated user with sufficient privileges can exploit a path traversal vulnerability to upload a malicious file to an arbitrary location on the server. Once uploaded, the file can be used to achieve remote code execution (RCE). An attacker must be authenticated and have the appropriate permissions to exploit this issue. If the server is configured as read-only, remote code execution (RCE) is not possible; however, the malicious file upload may still be achievable. This problem is fixed in LORIS v26.0.5 and above, v27.0.2 and above, and v28.0.0 and above. As a workaround, LORIS administrators can disable the media module if it is not being used.
Severity
8.7 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/aces/Loris/security/advisories… | x_refsource_CONFIRM |
| https://github.com/aces/Loris/releases/tag/v26.0.5 | x_refsource_MISC |
| https://github.com/aces/Loris/releases/tag/v27.0.2 | x_refsource_MISC |
Impacted products
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CVE-2026-26975 (GCVE-0-2026-26975)
Vulnerability from cvelistv5 – Published: 2026-02-20 00:49 – Updated: 2026-02-20 15:35
VLAI
EPSS
VEX
Title
Music Assistant Server Path Traversal in Playlist Update API Allows Remote Code Execution
Summary
Music Assistant is an open-source media library manager that integrates streaming services with connected speakers. Versions 2.6.3 and below allow unauthenticated network-adjacent attackers to execute arbitrary code on affected installations. The music/playlists/update API allows users to bypass the .m3u extension enforcement and write files anywhere on the filesystem, which is exacerbated by the container running as root. This can be exploited to achieve Remote Code Execution by writing a malicious .pth file to the Python site-packages directory, which will execute arbitrary commands when Python loads. This issue has been fixed in version 2.7.0.
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/music-assistant/server/securit… | x_refsource_CONFIRM |
| https://github.com/music-assistant/server/pull/2684 | x_refsource_MISC |
| https://github.com/music-assistant/server/release… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| music-assistant | server |
Affected:
< 2.7.0
|
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CVE-2026-25923 (GCVE-0-2026-25923)
Vulnerability from cvelistv5 – Published: 2026-02-09 21:56 – Updated: 2026-02-11 21:20
VLAI
EPSS
VEX
Title
Phar Deserialization leading to Arbitrary File Deletion in my little forum
Summary
my little forum is a PHP and MySQL based internet forum that displays the messages in classical threaded view. Prior to 20260208.1, the application fails to filter the phar:// protocol in URL validation, allowing attackers to upload a malicious Phar Polyglot file (disguised as JPEG) via the image upload feature, trigger Phar deserialization through BBCode [img] tag processing, and exploit Smarty 4.1.0 POP chain to achieve arbitrary file deletion. This vulnerability is fixed in 20260208.1.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/My-Little-Forum/mylittleforum/… | x_refsource_CONFIRM |
| https://github.com/My-Little-Forum/mylittleforum/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| My-Little-Forum | mylittleforum |
Affected:
< 20260208.1
|
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CVE-2026-25648 (GCVE-0-2026-25648)
Vulnerability from cvelistv5 – Published: 2026-02-23 21:01 – Updated: 2026-02-25 15:17
VLAI
EPSS
VEX
Title
Traccar Vulnerable to Stored Cross-Site Scripting (XSS) via Malicious SVG File Upload
Summary
Versions of the Traccar open-source GPS tracking system starting with 6.11.1 contain an issue in which authenticated users can execute arbitrary JavaScript in the context of other users' browsers by uploading malicious SVG files as device images. The application accepts SVG file uploads without sanitization and serves them with the `image/svg+xml` Content-Type, allowing embedded JavaScript to execute when victims view the image. As of time of publication, it is unclear whether a fix is available.
Severity
8.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/traccar/traccar/security/advis… | x_refsource_CONFIRM |
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CVE-2026-25510 (GCVE-0-2026-25510)
Vulnerability from cvelistv5 – Published: 2026-02-03 21:17 – Updated: 2026-02-04 16:29
VLAI
EPSS
VEX
Title
CI4MS Vulnerable to Remote Code Execution (RCE) via Arbitrary File Creation and Save in File Editor
Summary
CI4MS is a CodeIgniter 4-based CMS skeleton that delivers a production-ready, modular architecture with RBAC authorization and theme support. Prior to version 0.28.5.0, an authenticated user with file editor permissions can achieve Remote Code Execution (RCE) by leveraging the file creation and save endpoints, an attacker can upload and execute arbitrary PHP code on the server. This issue has been patched in version 0.28.5.0.
Severity
10 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/ci4-cms-erp/ci4ms/security/adv… | x_refsource_CONFIRM |
| https://github.com/ci4-cms-erp/ci4ms/commit/86be2… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ci4-cms-erp | ci4ms |
Affected:
< 0.28.5.0
|
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CVE-2026-25446 (GCVE-0-2026-25446)
Vulnerability from cvelistv5 – Published: 2026-06-17 09:50 – Updated: 2026-06-17 15:31
VLAI
EPSS
VEX
Title
WordPress WishList Member X plugin <= 3.29.0 - Arbitrary File Upload vulnerability
Summary
Subscriber Arbitrary File Upload in WishList Member X <= 3.29.0 versions.
Severity
9.9 (Critical)
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
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WishList Products, LLC. | WishList Member X |
Affected:
n/a , ≤ 3.29.0
(custom)
|
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CVE-2026-25413 (GCVE-0-2026-25413)
Vulnerability from cvelistv5 – Published: 2026-03-25 16:14 – Updated: 2026-04-28 16:14
VLAI
EPSS
VEX
Title
WordPress WPBookit Pro plugin <= 1.6.18 - Arbitrary File Upload vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in iqonicdesign WPBookit Pro wpbookit-pro allows Using Malicious Files.This issue affects WPBookit Pro: from n/a through <= 1.6.18.
Severity
9.9 (Critical)
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
| URL | Tags |
|---|---|
| https://patchstack.com/database/Wordpress/Plugin/… | vdb-entry |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| iqonicdesign | WPBookit Pro |
Affected:
0 , ≤ 1.6.18
(custom)
|
Date Public
2026-04-22 14:18
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CVE-2026-25201 (GCVE-0-2026-25201)
Vulnerability from cvelistv5 – Published: 2026-02-02 04:49 – Updated: 2026-02-26 15:04
VLAI
EPSS
VEX
Summary
An unauthenticated user can upload arbitrary files to execute remote code, leading to privilege escalation in MagicInfo9 Server.
This issue affects MagicINFO 9 Server: less than 21.1090.1.
Severity
8.8 (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 | |
|---|---|---|---|
| Samsung Electronics | MagicINFO 9 Server |
Affected:
21.1090.1
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CVE-2026-25200 (GCVE-0-2026-25200)
Vulnerability from cvelistv5 – Published: 2026-02-02 04:49 – Updated: 2026-02-26 15:04
VLAI
EPSS
VEX
Summary
A vulnerability in MagicInfo9 Server allows authorized users to upload HTML files without authentication, leading to Stored XSS, which can result in account takeover
This issue affects MagicINFO 9 Server: less than 21.1090.1.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
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 | |
|---|---|---|---|
| Samsung Electronics | MagicINFO 9 Server |
Affected:
21.1090.1
|
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CVE-2026-25099 (GCVE-0-2026-25099)
Vulnerability from cvelistv5 – Published: 2026-03-27 11:55 – Updated: 2026-03-27 12:42 X_Open Source
VLAI
EPSS
VEX
Title
Remote Code Execution via Unrestricted File Upload in Bludit
Summary
Bludit’s API plugin allows an authenticated attacker with a valid API token to upload files of any type and extension without restriction, which can then be executed, leading to Remote Code Execution.
This issue was fixed in 3.18.4.
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
2 references
| URL | Tags |
|---|---|
| https://cert.pl/posts/2026/03/CVE-2026-25099 | third-party-advisory |
| https://github.com/bludit/bludit/releases/tag/3.18.4 | release-notes |
Date Public
2026-03-26 10:55
Credits
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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.