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-2020-36897 (GCVE-0-2020-36897)
Vulnerability from cvelistv5 – Published: 2025-12-10 21:02 – Updated: 2025-12-11 18:52
VLAI
Title
QiHang Media Web Digital Signage 3.0.9 Unauthenticated Remote Code Execution
Summary
QiHang Media Web Digital Signage 3.0.9 contains an unauthenticated remote code execution vulnerability in the QH.aspx file that allows attackers to upload malicious ASPX scripts. Attackers can exploit the file upload functionality by using the 'remotePath' and 'fileToUpload' parameters to write and execute arbitrary system commands on the server.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48751 | exploit |
| http://www.howfor.com | product |
| https://www.zeroscience.mk/en/vulnerabilities/ZSL… | vendor-advisory |
| https://www.vulncheck.com/advisories/qihang-media… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Shenzhen Xingmeng Qihang Media Co., Ltd. Guangzhou Hefeng Automation Technology Co., Ltd. | QiHang Media Web Digital Signage |
Affected:
3.0.9
|
Date Public
2020-08-12 00:00
Credits
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CVE-2020-36942 (GCVE-0-2020-36942)
Vulnerability from cvelistv5 – Published: 2026-01-27 15:23 – Updated: 2026-01-27 21:37
VLAI
Title
Victor CMS 1.0 - File Upload To RCE
Summary
Victor CMS 1.0 contains a file upload vulnerability that allows authenticated users to upload malicious PHP files through the profile image upload feature. Attackers can upload a PHP shell to the /img directory and execute system commands by accessing the uploaded file via web browser.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/49310 | exploit |
| https://github.com/VictorAlagwu/CMSsite | product |
| https://www.vulncheck.com/advisories/victor-cms-f… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| VictorAlagwu | CMSsite |
Affected:
1.0
|
Date Public
2020-12-20 00:00
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CVE-2020-36973 (GCVE-0-2020-36973)
Vulnerability from cvelistv5 – Published: 2026-01-28 17:35 – Updated: 2026-01-28 21:12
VLAI
Title
PDW File Browser 1.3 - Remote Code Execution
Summary
PDW File Browser 1.3 contains a remote code execution vulnerability that allows authenticated users to upload and rename webshell files to arbitrary web server locations. Attackers can upload a .txt webshell, rename it to .php, and move it to accessible directories using double-encoded path traversal techniques.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48987 | exploit |
| https://github.com/michalc/PDW-File-Browser | product |
| https://www.vulncheck.com/advisories/pdw-file-bro… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| michalc | PDW File Browser |
Affected:
<=1.3
|
Date Public
2020-10-24 00:00
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CVE-2020-37009 (GCVE-0-2020-37009)
Vulnerability from cvelistv5 – Published: 2026-01-29 14:28 – Updated: 2026-03-05 01:27
VLAI
Title
MedDream PACS Server 6.8.3.751 - Remote Code Execution
Summary
MedDream PACS Server 6.8.3.751 contains an authenticated remote code execution vulnerability that allows authorized users to upload malicious PHP files. Attackers can exploit the uploadImage.php endpoint by authenticating and uploading a PHP shell to execute arbitrary system commands with elevated privileges.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48853 | exploit |
| https://meddream.com/products/meddream-pacs-server/ | product |
| https://www.vulncheck.com/advisories/meddream-pac… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| MedDream | MedDream PACS Server |
Affected:
6.8.3.751
|
Date Public
2020-10-01 00:00
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CVE-2020-37023 (GCVE-0-2020-37023)
Vulnerability from cvelistv5 – Published: 2026-01-30 22:07 – Updated: 2026-02-03 20:35
VLAI
Title
Koken CMS 0.22.24 - Arbitrary File Upload
Summary
Koken CMS 0.22.24 contains a file upload vulnerability that allows authenticated attackers to bypass file extension restrictions by renaming malicious PHP files. Attackers can upload PHP files with system command execution capabilities by manipulating the file upload request through a web proxy and changing the file extension.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48706 | exploit |
| http://koken.me/ | product |
| https://www.softaculous.com/apps/cms/Koken | product |
| https://github.com/V1n1v131r4/Bypass-File-Upload-… | technical-descriptionexploit |
| https://www.vulncheck.com/advisories/koken-cms-ar… | third-party-advisory |
Date Public
2020-07-15 00:00
Credits
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CVE-2020-37073 (GCVE-0-2020-37073)
Vulnerability from cvelistv5 – Published: 2026-02-03 22:01 – Updated: 2026-02-04 19:00
VLAI
Title
Victor CMS 1.0 - Authenticated Arbitrary File Upload
Summary
Victor CMS 1.0 contains an authenticated file upload vulnerability that allows administrators to upload PHP files with arbitrary content through the user_image parameter. Attackers can upload a malicious PHP shell to the /img/ directory and execute system commands by accessing the uploaded file with a 'cmd' parameter.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48490 | exploit |
| https://github.com/VictorAlagwu/CMSsite | product |
| https://www.vulncheck.com/advisories/victor-cms-a… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| VictorAlagwu | CMSsite |
Affected:
1.0
|
Date Public
2020-05-19 00:00
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CVE-2020-37084 (GCVE-0-2020-37084)
Vulnerability from cvelistv5 – Published: 2026-02-03 22:09 – Updated: 2026-03-05 01:27
VLAI
Title
School ERP Pro 1.0 Admin Profile Photo Upload Remote Code Execution Vulnerability
Summary
School ERP Pro 1.0 contains a remote code execution vulnerability that allows authenticated admin users to upload arbitrary PHP files as profile photos by bypassing file extension checks. Attackers can exploit improper file validation in pre-editstudent.inc.php to execute arbitrary code on the server.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48392 | exploittechnical-description |
| https://web.archive.org/web/20200129123503/http:/… | product |
| https://web.archive.org/web/20190612111732/https:… | product |
| https://www.vulncheck.com/advisories/school-erp-p… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Arox | School ERP Pro |
Affected:
1.0
|
Date Public
2020-04-28 00:00
Credits
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CVE-2020-37090 (GCVE-0-2020-37090)
Vulnerability from cvelistv5 – Published: 2026-02-03 22:01 – Updated: 2026-03-05 01:27
VLAI
Title
School ERP Pro 1.0 - Remote Code Execution
Summary
School ERP Pro 1.0 contains a file upload vulnerability that allows students to upload arbitrary PHP files to the messaging system. Attackers can upload malicious PHP scripts through the message attachment feature, enabling remote code execution on the server.
Severity
9.8 (Critical)
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48392 | exploit |
| https://web.archive.org/web/20200129123503/http:/… | product |
| https://web.archive.org/web/20190612111732/https:… | product |
| https://www.vulncheck.com/advisories/school-erp-p… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Arox | School ERP Pro |
Affected:
1.0
|
Date Public
2020-04-28 00:00
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CVE-2020-37113 (GCVE-0-2020-37113)
Vulnerability from cvelistv5 – Published: 2026-02-03 16:52 – Updated: 2026-02-06 19:30
VLAI
Title
GUnet OpenEclass 1.7.3 E-learning platform - File Upload Extension Bypass
Summary
GUnet OpenEclass 1.7.3 allows authenticated users to bypass file extension restrictions when uploading files. By renaming a PHP file to .php3 or .PhP, an attacker can upload a web shell and execute arbitrary code on the server. This vulnerability enables remote code execution by bypassing the intended file type checks in the exercise submission feature.
Severity
CWE
- CWE-434 - Improper Neutralization of Special Elements in a File Name or Extension (File Upload)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48163 | exploit |
| https://www.openeclass.org/ | product |
| https://download.openeclass.org/files/docs/1.7/CH… | patch |
| https://www.vulncheck.com/advisories/gunet-openec… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Openeclass | GUnet OpenEclass |
Affected:
1.7.3 (2007)
|
Date Public
2020-03-02 00:00
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CVE-2020-37117 (GCVE-0-2020-37117)
Vulnerability from cvelistv5 – Published: 2026-02-05 16:13 – Updated: 2026-03-05 01:28
VLAI
Title
jizhiCMS 1.6.7 - Arbitrary File Download
Summary
jizhiCMS 1.6.7 contains a file download vulnerability in the admin plugins update endpoint that allows authenticated administrators to download arbitrary files. Attackers can exploit the vulnerability by sending crafted POST requests with malicious filepath and download_url parameters to trigger unauthorized file downloads.
Severity
CWE
- CWE-434 - Unrestricted Upload of File with Dangerous Type
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://www.exploit-db.com/exploits/48361 | exploit |
| https://www.jizhicms.cn/ | product |
| https://www.vulncheck.com/advisories/jizhicms-arb… | third-party-advisory |
Date Public
2020-04-18 00:00
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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.