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.
6247 vulnerabilities reference this CWE, most recent first.
CVE-2026-40262 (GCVE-0-2026-40262)
Vulnerability from cvelistv5 – Published: 2026-04-16 23:51 – Updated: 2026-04-18 02:51
VLAI
EPSS
VEX
Title
Note Mark has Stored XSS via Unrestricted Asset Upload
Summary
Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the asset delivery handler serves uploaded files inline and relies on magic-byte detection for content type, which does not identify text-based formats such as HTML, SVG, or XHTML. These files are served with an empty Content-Type, no X-Content-Type-Options: nosniff header, and inline disposition, allowing browsers to sniff and render active content. An authenticated user can upload an HTML or SVG file containing JavaScript as a note asset, and when a victim navigates to the asset URL, the script executes under the application's origin with access to the victim's authenticated session and API actions. This issue has been fixed in version 0.19.2.
Severity
8.7 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-18 02:50 UTC
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/enchant97/note-mark/security/a… | x_refsource_CONFIRM |
| https://github.com/enchant97/note-mark/commit/6bb… | x_refsource_MISC |
| https://github.com/enchant97/note-mark/releases/t… | x_refsource_MISC |
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CVE-2026-40040 (GCVE-0-2026-40040)
Vulnerability from cvelistv5 – Published: 2026-04-13 18:10 – Updated: 2026-05-12 01:46
VLAI
EPSS
VEX
Title
Pachno 1.0.6 Unrestricted File Upload Remote Code Execution
Summary
Pachno 1.0.6 contains an unrestricted file upload vulnerability that allows authenticated users to upload arbitrary file types by bypassing ineffective extension filtering to the /uploadfile endpoint. Attackers can upload executable files .php5 scripts to web-accessible directories and execute them to achieve remote code execution on the server.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-14 13:08 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.zeroscience.mk/en/vulnerabilities/ZSL… | third-party-advisory |
| https://www.vulncheck.com/advisories/pachno-unres… | third-party-advisory |
Impacted products
Date Public
2026-04-12 00:00
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CVE-2026-39931 (GCVE-0-2026-39931)
Vulnerability from cvelistv5 – Published: 2026-08-03 15:54 – Updated: 2026-08-14 16:49 X_Open Source
VLAI
EPSS
VEX
Title
OpenEMR Authenticated SQL Injection via backup.php Import Feature
Summary
OpenEMR through 8.2.0 contains an authenticated SQL injection vulnerability in the backup configuration import feature that allows administrators with admin or super ACL privileges to execute arbitrary DDL and DML statements against the application database by uploading a crafted SQL file at the form_step=202 parameter in backup.php. Attackers can exploit the unfiltered shell_exec invocation of the mysql command-line client to extract credential hashes, modify access control tables, inject backdoor accounts, create persistent triggers or stored procedures, and write arbitrary files to the filesystem where MySQL FILE privileges and permissive secure_file_priv settings are configured.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 20:09 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://jivasecurity.com/writeups/openemr-backup-… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/openemr-auth… | third-party-advisory |
Impacted products
Date Public
2026-08-02 00:00
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CVE-2026-39598 (GCVE-0-2026-39598)
Vulnerability from cvelistv5 – Published: 2026-06-16 21:24 – Updated: 2026-06-17 10:35
VLAI
EPSS
VEX
Title
WordPress Academy LMS Pro plugin < 3.5.2 - Arbitrary File Upload vulnerability
Summary
Unrestricted Upload of File with Dangerous Type vulnerability in Kodezen LLC Academy LMS Pro allows Upload a Web Shell to a Web Server.
This issue affects Academy LMS Pro: from n/a before 3.5.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 10:23 UTC
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 | |
|---|---|---|---|
| Kodezen LLC | Academy LMS Pro |
Affected:
n/a , < 3.5.2
(custom)
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CVE-2026-39591 (GCVE-0-2026-39591)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:18 – Updated: 2026-06-16 14:29
VLAI
EPSS
VEX
Title
WordPress WP-BusinessDirectory plugin <= 4.0.0 - Arbitrary File Upload vulnerability
Summary
Subscriber Arbitrary File Upload in WP-BusinessDirectory <= 4.0.0 versions.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-16 14:28 UTC
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 | |
|---|---|---|---|
| CMSJunkie – WordPress Business Directory Plugins | WP-BusinessDirectory |
Affected:
n/a , ≤ 4.0.0
(custom)
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CVE-2026-39589 (GCVE-0-2026-39589)
Vulnerability from cvelistv5 – Published: 2026-06-17 09:50 – Updated: 2026-06-17 12:35
VLAI
EPSS
VEX
Title
WordPress Webenvo theme <= 0.0.6 - Arbitrary File Upload vulnerability
Summary
Subscriber Arbitrary File Upload in Webenvo <= 0.0.6 versions.
Severity
9.9 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-17 12:34 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://patchstack.com/database/wordpress/theme/w… | vdb-entry |
Impacted products
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CVE-2026-39527 (GCVE-0-2026-39527)
Vulnerability from cvelistv5 – Published: 2026-06-15 20:18 – Updated: 2026-06-15 22:20
VLAI
EPSS
VEX
Title
WordPress WpStream plugin < 4.11.2 - Arbitrary File Upload vulnerability
Summary
Subscriber Arbitrary File Upload in WpStream < 4.11.2 versions.
Severity
5.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-15 22:20 UTC
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 | |
|---|---|---|---|
| sc Internet Vivoo | WpStream |
Affected:
n/a , < 4.11.2
(custom)
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CVE-2026-35573 (GCVE-0-2026-35573)
Vulnerability from cvelistv5 – Published: 2026-04-07 17:06 – Updated: 2026-04-08 18:49
VLAI
EPSS
VEX
Title
ChurchCRM has a Path traversal leads to RCE
Summary
ChurchCRM is an open-source church management system. Prior to 6.5.3, a path traversal vulnerability in ChurchCRM's backup restore functionality allows authenticated administrators to upload arbitrary files and achieve remote code execution by overwriting Apache .htaccess configuration files. The vulnerability exists in src/ChurchCRM/Backup/RestoreJob.php. The $rawUploadedFile['name'] parameter is user-controlled and allows uploading files with arbitrary names to /var/www/html/tmp_attach/ChurchCRMBackups/. This vulnerability is fixed in 6.5.3.
Severity
9.1 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-08 18:49 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/ChurchCRM/CRM/security/advisor… | x_refsource_CONFIRM |
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CVE-2026-35174 (GCVE-0-2026-35174)
Vulnerability from cvelistv5 – Published: 2026-04-06 17:50 – Updated: 2026-04-07 14:38
VLAI
EPSS
VEX
Title
Chyrp Lite has a Path Traversal to Remote Code Execution
Summary
Chyrp Lite is an ultra-lightweight blogging engine. Prior to 2026.01, a path traversal vulnerability exists in the administration console that allows an administrator or a user with Change Settings permission to change the uploads path to any folder. This vulnerability allows the user to download any file on the server, including config.json.php with database credentials and overwrite critical system files, leading to remote code execution. This vulnerability is fixed in 2026.01.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-07 14:38 UTC
CWE
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/xenocrat/chyrp-lite/security/a… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| xenocrat | chyrp-lite |
Affected:
< 2026.01
|
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CVE-2026-35164 (GCVE-0-2026-35164)
Vulnerability from cvelistv5 – Published: 2026-04-06 17:33 – Updated: 2026-04-07 14:07
VLAI
EPSS
VEX
Title
Brave CMS Sffected by Unrestricted File Upload via CKEditor Endpoint
Summary
Brave CMS is an open-source CMS. Prior to 2.0.6, an unrestricted file upload vulnerability exists in the CKEditor upload functionality. It is found in app/Http/Controllers/Dashboard/CkEditorController.php within the ckupload method. The method fails to validate uploaded file types and relies entirely on user input. This allows an authenticated user to upload executable PHP scripts and gain Remote Code Execution. This vulnerability is fixed in 2.0.6.
Severity
8.8 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-07 14:06 UTC
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://github.com/Ajax30/BraveCMS-2.0/security/a… | x_refsource_CONFIRM |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Ajax30 | BraveCMS-2.0 |
Affected:
< 2.0.6
|
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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.