CWE-434
Unrestricted Upload of File with Dangerous Type
The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.
CVE-2026-4875 (GCVE-0-2026-4875)
Vulnerability from cvelistv5 – Published: 2026-03-26 12:23 – Updated: 2026-03-28 02:17 X_Freeware
VLAI
Title
itsourcecode Free Hotel Reservation System index.php unrestricted upload
Summary
A vulnerability was determined in itsourcecode Free Hotel Reservation System 1.0. The affected element is an unknown function of the file /admin/mod_amenities/index.php?view=add. This manipulation of the argument image causes unrestricted upload. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.353558 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.353558 | signaturepermissions-required |
| https://vuldb.com/?submit.776245 | third-party-advisory |
| https://github.com/bybinyu/Vulnerability-Practice… | exploitissue-tracking |
| https://itsourcecode.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| itsourcecode | Free Hotel Reservation System |
Affected:
1.0
cpe:2.3:a:itsourcecode:free_hotel_reservation_system:*:*:*:*:*:*:*:* |
Credits
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CVE-2026-4882 (GCVE-0-2026-4882)
Vulnerability from cvelistv5 – Published: 2026-05-02 04:27 – Updated: 2026-05-04 13:33
VLAI
Title
User Registration Advanced Fields <= 1.6.20 - Unauthenticated Arbitrary File Upload
Summary
The User Registration Advanced Fields plugin for WordPress is vulnerable to arbitrary file uploads due to missing file type validation in the 'URAF_AJAX::method_upload' function in all versions up to, and including, 1.6.20. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The vulnerability can only be exploited if a "Profile Picture" field is added to the form.
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
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| WPEverest | User Registration Advanced Fields |
Affected:
0 , ≤ 1.6.20
(semver)
|
Credits
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CVE-2026-4883 (GCVE-0-2026-4883)
Vulnerability from cvelistv5 – Published: 2026-05-19 11:18 – Updated: 2026-05-19 13:44
VLAI
Title
Piotnet Forms <= 2.1.40 - Unauthenticated Arbitrary File Upload via Form File Upload
Summary
The Piotnet Forms plugin for WordPress is vulnerable to arbitrary file upload due to missing file type validation in the 'piotnetforms_ajax_form_builder' function in all versions up to, and including, 2.1.40. The plugin uses an incomplete extension blacklist that only blocks php, phpt, php5, php7, and exe extensions, while allowing dangerous extensions such as .phar or .phtml to be uploaded. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The exploit can only be exploited if a file field is added to the form.
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
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Piotnet | Piotnet Forms |
Affected:
0 , ≤ 2.1.40
(semver)
|
Credits
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CVE-2026-4885 (GCVE-0-2026-4885)
Vulnerability from cvelistv5 – Published: 2026-05-19 06:46 – Updated: 2026-05-19 12:28
VLAI
Title
Piotnet Addons for Elementor Pro <= 7.1.70 - Unauthenticated Arbitrary File Upload via Form File Upload
Summary
The Piotnet Addons for Elementor Pro plugin for WordPress is vulnerable to arbitrary file upload due to missing file type validation in the 'pafe_ajax_form_builder' function in all versions up to, and including, 7.1.70. The plugin uses an incomplete extension blacklist that only blocks php, phpt, php5, php7, and exe extensions, while allowing dangerous extensions such as .phar or .phtml to be uploaded. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. Note: The exploit can only be exploited if a file field is added to the form.
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
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Piotnet | Piotnet Addons For Elementor Pro |
Affected:
0 , ≤ 7.1.70
(semver)
|
Credits
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CVE-2026-5001 (GCVE-0-2026-5001)
Vulnerability from cvelistv5 – Published: 2026-03-28 16:00 – Updated: 2026-03-30 14:38
VLAI
Title
PromtEngineer localGPT server.py do_POST unrestricted upload
Summary
A flaw has been found in PromtEngineer localGPT up to 4d41c7d1713b16b216d8e062e51a5dd88b20b054. The affected element is the function do_POST of the file backend/server.py. This manipulation causes unrestricted upload. The attack is possible to be carried out remotely. The exploit has been published and may be used. This product adopts a rolling release strategy to maintain continuous delivery. Therefore, version details for affected or updated releases cannot be specified. The vendor was contacted early about this disclosure but did not respond in any way.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/353888 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/353888/cti | signaturepermissions-required |
| https://vuldb.com/submit/778316 | third-party-advisory |
| https://github.com/August829/CVEP/issues/7 | exploitissue-tracking |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PromtEngineer | localGPT |
Affected:
4d41c7d1713b16b216d8e062e51a5dd88b20b054
|
Credits
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CVE-2026-5181 (GCVE-0-2026-5181)
Vulnerability from cvelistv5 – Published: 2026-03-31 04:45 – Updated: 2026-03-31 15:36 X_Freeware
VLAI
Title
SourceCodester Simple Doctors Appointment System ajax.php unrestricted upload
Summary
A vulnerability has been found in SourceCodester Simple Doctors Appointment System up to 1.0. This issue affects some unknown processing of the file /doctors_appointment/admin/ajax.php?action=save_category. Such manipulation of the argument img leads to unrestricted upload. The attack may be performed from remote. The exploit has been disclosed to the public and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/354249 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/354249/cti | signaturepermissions-required |
| https://vuldb.com/submit/780375 | third-party-advisory |
| https://github.com/dyh1213-wq/cve/issues/5 | exploitissue-tracking |
| https://www.sourcecodester.com/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SourceCodester | Simple Doctors Appointment System |
Affected:
1.0
|
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CVE-2026-5261 (GCVE-0-2026-5261)
Vulnerability from cvelistv5 – Published: 2026-04-01 08:15 – Updated: 2026-04-03 19:45
VLAI
Title
Shandong Hoteam InforCenter PLM BaseHandler.ashx uploadFileToIIS unrestricted upload
Summary
A vulnerability was identified in Shandong Hoteam InforCenter PLM up to 8.3.8. The impacted element is the function uploadFileToIIS of the file /Base/BaseHandler.ashx. The manipulation of the argument File leads to unrestricted upload. It is possible to initiate 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: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/354450 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/354450/cti | signaturepermissions-required |
| https://vuldb.com/submit/780725 | third-party-advisory |
| https://my.feishu.cn/docx/ToGkdd5jwokb4PxEMkHcKrf… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Shandong Hoteam | InforCenter PLM |
Affected:
8.3.0
Affected: 8.3.1 Affected: 8.3.2 Affected: 8.3.3 Affected: 8.3.4 Affected: 8.3.5 Affected: 8.3.6 Affected: 8.3.7 Affected: 8.3.8 |
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CVE-2026-5364 (GCVE-0-2026-5364)
Vulnerability from cvelistv5 – Published: 2026-04-24 05:29 – Updated: 2026-04-24 18:30
VLAI
Title
Drag and Drop File Upload for Contact Form 7 <= 1.1.3 - Unauthenticated Arbitrary File Upload via sanitize_file_name Bypass
Summary
The Drag and Drop File Upload for Contact Form 7 plugin for WordPress is vulnerable to arbitrary file upload in versions up to, and including, 1.1.3. This is due to the plugin extracting the file extension before sanitization occurs and allowing the file type parameter to be controlled by the attacker rather than being restricted to administrator-configured values, which when combined with the fact that validation occurs on the unsanitized extension while the file is saved with a sanitized extension, allows special characters like '$' to be stripped during the save process. This makes it possible for unauthenticated attackers to upload arbitrary PHP files and potentially achieve remote code execution, however, an .htaccess file and name randomization is in place which restricts real-world exploitability.
Severity
8.1 (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
10 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| addonsorg | Drag and Drop File Upload for Contact Form 7 |
Affected:
0 , ≤ 1.1.3
(semver)
|
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CVE-2026-53724 (GCVE-0-2026-53724)
Vulnerability from cvelistv5 – Published: 2026-06-12 18:34 – Updated: 2026-06-12 20:01
VLAI
Title
Parse Server: Stored XSS via trailing-dot filename bypassing file upload extension blocklist
Summary
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.79 and 9.9.1-alpha.4, the default file upload extension blocklist can be bypassed by appending a trailing dot to a filename whose extension would otherwise be blocked (e.g. poc.svg.). The trailing dot causes the extension parser to extract an empty string, which short-circuits the blocklist check, and the attacker-controlled Content-Type is forwarded to the storage adapter unchanged. Storage adapters that persist and serve the provided Content-Type (such as S3 or GCS) then serve the file with an active type such as image/svg+xml, enabling stored XSS when a victim opens the file URL. The default GridFS adapter is not affected because it sets X-Content-Type-Options: nosniff on responses. This issue has been patched in versions 8.6.79 and 9.9.1-alpha.4.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/parse-community/parse-server/s… | x_refsource_CONFIRM |
| https://github.com/parse-community/parse-server/p… | x_refsource_MISC |
| https://github.com/parse-community/parse-server/p… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| parse-community | parse-server |
Affected:
< 8.6.79
Affected: >= 9.0.0, < 9.9.1-alpha.4 |
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CVE-2026-53787 (GCVE-0-2026-53787)
Vulnerability from cvelistv5 – Published: 2026-06-12 13:52 – Updated: 2026-06-13 03:01
VLAI
Title
Amasty Order Attributes for Magento 2 < 4.0.0 Unauthenticated Arbitrary File Upload
Summary
Amasty Order Attributes for Magento 2 before version 4.0.0 contains an unauthenticated arbitrary file upload vulnerability that allows unauthenticated attackers to write arbitrary files to the store's media directory by submitting files of any type or name to the upload endpoint without authentication, session validation, or cart context. Attackers can upload PHP files to achieve remote code execution on servers where the media directory permits PHP execution, or alternatively enable malware hosting, stored cross-site scripting via HTML or SVG uploads, and path traversal to write files outside the intended upload directory.
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
3 references
| URL | Tags |
|---|---|
| https://sansec.io/research/amasty-order-attribute… | technical-description |
| https://amasty.com/order-attributes-for-magento-2.html | productrelease-notes |
| https://www.vulncheck.com/advisories/amasty-order… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Amasty | Order Attributes for Magento 2 |
Affected:
0 , < 4.0.0
(semver)
|
Date Public
2026-06-12 00:00
Credits
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Mitigation
Phase: Architecture and Design
Description:
- 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 ID: MIT-21
Phase: Architecture and Design
Strategy: Enforcement by Conversion
Description:
- 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
Phase: Architecture and Design
Description:
- Consider storing the uploaded files outside of the web document root entirely. Then, use other mechanisms to deliver the files dynamically. [REF-423]
Mitigation ID: MIT-5
Phase: Implementation
Strategy: Input Validation
Description:
- 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
Phase: Architecture and Design
Description:
- 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
Phase: Implementation
Strategy: Input Validation
Description:
- 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
Phase: Implementation
Description:
- When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
Mitigation ID: MIT-15
Phase: Architecture and Design
Description:
- 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
Phase: Implementation
Description:
- 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
Phase: Implementation
Description:
- 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 ID: MIT-17
Phases: Architecture and Design, Operation
Strategy: Environment Hardening
Description:
- 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 ID: MIT-22
Phases: Architecture and Design, Operation
Strategy: Sandbox or Jail
Description:
- 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.