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-2026-3797 (GCVE-0-2026-3797)
Vulnerability from cvelistv5 – Published: 2026-03-09 02:32 – Updated: 2026-03-10 20:17
VLAI
EPSS
VEX
Title
Tiandy Video Surveillance System 视频监控平台 CLS_REST_File.java uploadFile unrestricted upload
Summary
A security vulnerability has been detected in Tiandy Video Surveillance System 视频监控平台 7.17.0. The impacted element is the function uploadFile of the file /src/com/tiandy/easy7/core/rest/CLS_REST_File.java. The manipulation of the argument fileName leads to unrestricted upload. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. 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 2026-03-10 20:16 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.349764 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.349764 | signaturepermissions-required |
| https://vuldb.com/?submit.766386 | third-party-advisory |
| https://my.feishu.cn/docx/P3Bgdl9BHocn66xCMpCcgCD… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Tiandy | Video Surveillance System 视频监控平台 |
Affected:
7.17.0
|
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CVE-2026-3749 (GCVE-0-2026-3749)
Vulnerability from cvelistv5 – Published: 2026-03-08 16:02 – Updated: 2026-03-11 19:39 X_Open Source
VLAI
EPSS
VEX
Title
Bytedesk SVG File UploadRestService.java handleFileUpload unrestricted upload
Summary
A weakness has been identified in Bytedesk up to 1.3.9. This vulnerability affects the function handleFileUpload of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestService.java of the component SVG File Handler. Executing a manipulation can lead to unrestricted upload. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 1.4.5.1 is able to resolve this issue. This patch is called 975e39e4dd527596987559f56c5f9f973f64eff7. It is recommended to upgrade the affected component.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 19:39 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.349727 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.349727 | signaturepermissions-required |
| https://vuldb.com/?submit.768030 | third-party-advisory |
| https://github.com/Bytedesk/bytedesk/issues/19 | issue-tracking |
| https://github.com/Bytedesk/bytedesk/issues/19#is… | issue-tracking |
| https://github.com/Bytedesk/bytedesk/issues/19#is… | exploitissue-tracking |
| https://github.com/Bytedesk/bytedesk/commit/975e3… | patch |
| https://github.com/Bytedesk/bytedesk/releases/tag… | patch |
| https://github.com/Bytedesk/bytedesk/ | product |
Impacted products
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CVE-2026-3748 (GCVE-0-2026-3748)
Vulnerability from cvelistv5 – Published: 2026-03-08 16:02 – Updated: 2026-03-11 19:34 X_Open Source
VLAI
EPSS
VEX
Title
Bytedesk SVG File UploadRestController.java uploadFile unrestricted upload
Summary
A security flaw has been discovered in Bytedesk up to 1.3.9. This affects the function uploadFile of the file source-code/src/main/java/com/bytedesk/core/upload/UploadRestController.java of the component SVG File Handler. Performing a manipulation results in unrestricted upload. Remote exploitation of the attack is possible. The exploit has been released to the public and may be used for attacks. Upgrading to version 1.4.5.1 is able to mitigate this issue. The patch is named 975e39e4dd527596987559f56c5f9f973f64eff7. Upgrading the affected component is recommended.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 19:34 UTC
Assigner
References
9 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.349726 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.349726 | signaturepermissions-required |
| https://vuldb.com/?submit.768028 | third-party-advisory |
| https://github.com/Bytedesk/bytedesk/issues/18 | issue-tracking |
| https://github.com/Bytedesk/bytedesk/issues/18#is… | issue-tracking |
| https://github.com/Bytedesk/bytedesk/issues/18#is… | exploitissue-tracking |
| https://github.com/Bytedesk/bytedesk/commit/975e3… | patch |
| https://github.com/Bytedesk/bytedesk/releases/tag… | patch |
| https://github.com/Bytedesk/bytedesk/ | product |
Impacted products
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"url": "https://github.com/Bytedesk/bytedesk/commit/975e39e4dd527596987559f56c5f9f973f64eff7"
},
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],
"url": "https://github.com/Bytedesk/bytedesk/releases/tag/v1.4.5.1"
},
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],
"url": "https://github.com/Bytedesk/bytedesk/"
}
],
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],
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CVE-2026-3535 (GCVE-0-2026-3535)
Vulnerability from cvelistv5 – Published: 2026-04-08 06:43 – Updated: 2026-04-08 18:04
VLAI
EPSS
VEX
Title
DSGVO Google Web Fonts GDPR <= 1.1 - Unauthenticated Arbitrary File Upload via 'fonturl' Parameter
Summary
The DSGVO Google Web Fonts GDPR plugin for WordPress is vulnerable to arbitrary file upload due to missing file type validation in the `DSGVOGWPdownloadGoogleFonts()` function in all versions up to, and including, 1.1. The function is exposed via a `wp_ajax_nopriv_` hook, requiring no authentication. It fetches a user-supplied URL as a CSS file, extracts URLs from its content, and downloads those files to a publicly accessible directory without validating the file type. This makes it possible for unauthenticated attackers to upload arbitrary files including PHP webshells, leading to remote code execution. The exploit requires the site to use one of a handful of specific themes (twentyfifteen, twentyseventeen, twentysixteen, storefront, salient, or shapely).
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-08 18:03 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mlfactory | DSGVO Google Web Fonts GDPR |
Affected:
0 , ≤ 1.1
(semver)
|
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CVE-2026-3533 (GCVE-0-2026-3533)
Vulnerability from cvelistv5 – Published: 2026-03-23 23:25 – Updated: 2026-04-08 17:00
VLAI
EPSS
VEX
Title
JupiterX Core <= 4.14.1 - Authenticated (Subscriber+) Missing Authorization To Limited File Upload via Popup Template Import
Summary
The Jupiter X Core plugin for WordPress is vulnerable to limited file uploads due to missing authorization on import_popup_templates() function as well as insufficient file type validation in the upload_files() function in all versions up to, and including, 4.14.1. This makes it possible for Authenticated attackers with Subscriber-level access and above, to upload files with dangerous types that can lead to Remote Code Execution on servers configured to handle .phar files as executable PHP (e.g., Apache+mod_php), or Stored Cross-Site Scripting via .svg, .dfxp, or .xhtml files upload on any server configuration
Severity
8.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-24 13:33 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| artbees | Jupiter X Core |
Affected:
0 , ≤ 4.14.1
(semver)
|
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CVE-2026-3459 (GCVE-0-2026-3459)
Vulnerability from cvelistv5 – Published: 2026-03-05 18:25 – Updated: 2026-04-08 16:45
VLAI
EPSS
VEX
Title
Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.5 - Unauthenticated Arbitrary File Upload
Summary
The Drag and Drop Multiple File Upload - Contact Form 7 plugin for WordPress is vulnerable to arbitrary file uploads due to insufficient file type validation in the 'dnd_upload_cf7_upload' function in versions up to, and including, 1.3.7.3. This makes it possible for unauthenticated attackers to upload arbitrary files on the affected site's server which may make remote code execution possible. This can be exploited if the form includes a multiple file upload field with ‘*’ as the accepted file type.
Severity
8.1 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 18:15 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| glenwpcoder | Drag and Drop Multiple File Upload for Contact Form 7 |
Affected:
0 , ≤ 1.3.9.5
(semver)
|
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CVE-2026-3418 (GCVE-0-2026-3418)
Vulnerability from cvelistv5 – Published: 2026-08-06 17:32 – Updated: 2026-08-07 17:47
VLAI
EPSS
VEX
Title
Arbitrary File Upload via System REST API in Multiple WSO2 Products Allows Remote Code Execution
Summary
The System REST API accepts user-supplied file uploads without enforcing sufficient validation on the file type or destination, allowing files to be written to arbitrary server-accessible locations. Exploitation requires authenticated administrative access with publisher privileges.
Successful exploitation permits an authenticated publisher to upload files to server-accessible locations. Depending on the deployment environment and how uploaded files are handled, this could lead to the execution of uploaded content, potentially resulting in remote code execution.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 17:46 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://security.docs.wso2.com/en/latest/security… | vendor-advisory |
Impacted products
7 products
| Vendor | Product | Version | |
|---|---|---|---|
| WSO2 | WSO2 API Manager |
Affected:
4.4.0 , < 4.4.0.67
(custom)
Affected: 4.5.0 , < 4.5.0.52 (custom) Affected: 4.6.0 , < 4.6.0.16 (custom) cpe:2.3:a:wso2:wso2_api_manager:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_api_manager:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_api_manager:*:*:*:*:*:*:*:* |
|
| WSO2 | WSO2 Traffic Manager |
Affected:
4.5.0 , < 4.5.0.51
(custom)
Affected: 4.6.0 , < 4.6.0.16 (custom) cpe:2.3:a:wso2:wso2_traffic_manager:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_traffic_manager:*:*:*:*:*:*:*:* |
|
| WSO2 | WSO2 API Control Plane |
Affected:
4.5.0 , < 4.5.0.53
(custom)
Affected: 4.6.0 , < 4.6.0.17 (custom) cpe:2.3:a:wso2:wso2_api_control_plane:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_api_control_plane:*:*:*:*:*:*:*:* |
|
| WSO2 | WSO2 Universal Gateway |
Affected:
4.5.0 , < 4.5.0.52
(custom)
Affected: 4.6.0 , < 4.6.0.16 (custom) cpe:2.3:a:wso2:wso2_universal_gateway:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_universal_gateway:*:*:*:*:*:*:*:* |
|
| WSO2 | WSO2 Carbon API Management Implementation |
Affected:
9.30.67 , < 9.30.67.156
(custom)
Affected: 9.31.86 , < 9.31.86.141 (custom) Affected: 9.32.147 , < 9.32.147.44 (custom) Unaffected: 9.33.104 , ≤ * (custom) cpe:2.3:a:wso2:wso2_carbon_api_management_implementation:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_carbon_api_management_implementation:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_carbon_api_management_implementation:*:*:*:*:*:*:*:* |
|
| WSO2 | WSO2 API Manager Publisher REST API V4 |
Affected:
9.30.67 , < 9.30.67.156
(custom)
Affected: 9.31.86 , < 9.31.86.141 (custom) Affected: 9.32.147 , < 9.32.147.44 (custom) Unaffected: 9.33.104 , ≤ * (custom) cpe:2.3:a:wso2:wso2_api_manager_publisher_rest_api_v4:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_api_manager_publisher_rest_api_v4:*:*:*:*:*:*:*:* cpe:2.3:a:wso2:wso2_api_manager_publisher_rest_api_v4:*:*:*:*:*:*:*:* |
|
| WSO2 | WSO2 Carbon API Management API |
Affected:
9.30.67 , < 9.30.67.156
(custom)
Unaffected: 9.33.104 , ≤ * (custom) cpe:2.3:a:wso2:wso2_carbon_api_management_api:*:*:*:*:*:*:*:* |
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CVE-2026-3187 (GCVE-0-2026-3187)
Vulnerability from cvelistv5 – Published: 2026-02-25 14:32 – Updated: 2026-02-25 20:55 X_Open Source
VLAI
EPSS
VEX
Title
feiyuchuixue sz-boot-parent API Endpoint upload unrestricted upload
Summary
A vulnerability was identified in feiyuchuixue sz-boot-parent up to 1.3.2-beta. Affected by this issue is some unknown functionality of the file /api/admin/sys-file/upload of the component API Endpoint. Such manipulation leads to unrestricted upload. The attack may be launched remotely. The exploit is publicly available and might be used. Upgrading to version 1.3.3-beta can resolve this issue. The name of the patch is aefaabfd7527188bfba3c8c9eee17c316d094802. Upgrading the affected component is recommended. The project was informed beforehand and acted very professional: "We have introduced a whitelist restriction on the /api/admin/sys-file/upload endpoint via the oss.allowedExts and oss.allowedMimeTypes configuration options, allowing the specification of permitted file extensions and MIME types for uploads."
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-25 20:55 UTC
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.347745 | vdb-entry |
| https://vuldb.com/?ctiid.347745 | signaturepermissions-required |
| https://vuldb.com/?submit.754038 | third-party-advisory |
| https://github.com/yuccun/CVE/blob/main/sz-boot-p… | exploit |
| https://github.com/feiyuchuixue/sz-boot-parent/co… | patch |
| https://github.com/feiyuchuixue/sz-boot-parent/re… | patch |
| https://github.com/feiyuchuixue/sz-boot-parent/ | product |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| feiyuchuixue | sz-boot-parent |
Affected:
1.3.2-beta
Unaffected: 1.3.3-beta |
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CVE-2026-3025 (GCVE-0-2026-3025)
Vulnerability from cvelistv5 – Published: 2026-02-23 20:02 – Updated: 2026-02-25 15:02
VLAI
EPSS
VEX
Title
ShuoRen Smart Heating Integrated Management Platform ExampleNodeService.asmx unrestricted upload
Summary
A flaw has been found in ShuoRen Smart Heating Integrated Management Platform 1.0.0. Affected by this vulnerability is an unknown functionality of the file /MP/Service/Webservice/ExampleNodeService.asmx. Executing a manipulation of the argument File can lead to unrestricted upload. It is possible to launch the attack remotely. The exploit has been published and may be used. 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 · CISA-ADP (v2.0.3)
Decision recorded 2026-02-25 15:02 UTC
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.347381 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.347381 | signaturepermissions-required |
| https://vuldb.com/?submit.756376 | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ShuoRen | Smart Heating Integrated Management Platform |
Affected:
1.0.0
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CVE-2026-2979 (GCVE-0-2026-2979)
Vulnerability from cvelistv5 – Published: 2026-02-23 08:02 – Updated: 2026-02-23 13:07
VLAI
EPSS
VEX
Title
FastApiAdmin Scheduled Task API controller.py user_avatar_upload_controller unrestricted upload
Summary
A flaw has been found in FastApiAdmin up to 2.2.0. This issue affects the function user_avatar_upload_controller of the file /backend/app/api/v1/module_system/user/controller.py of the component Scheduled Task API. Executing a manipulation can lead to unrestricted upload. The attack can be launched remotely. The exploit has been published and may be used.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-02-23 13:06 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://vuldb.com/?id.347363 | vdb-entrytechnical-description |
| https://vuldb.com/?ctiid.347363 | signaturepermissions-required |
| https://vuldb.com/?submit.756156 | third-party-advisory |
| https://github.com/CC-T-454455/Vulnerabilities/tr… | exploit |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | FastApiAdmin |
Affected:
2.0
Affected: 2.1 Affected: 2.2.0 |
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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.