Weakness (CWE)
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.
How to prevent it (8 mitigations)
-
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]
-
Architecture and Design
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.
-
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]
-
Implementation
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.
-
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.
-
Implementation
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]
-
Implementation
When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
-
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.
Source: MITRE CWE-434
937 results · Clear filters · Feed
-
Medium 6.3
OTCMS unrestricted upload
A vulnerability classified as critical was found in OTCMS 6.0.1. Affected by this vulnerability is an unknown functionality of the file sysCheckFile.php?mudi=sql. The manipulation leads to unrestricted upload. The attack can be launched remotely. The exploit …
-
Medium 6.3
IBOS htaccess unrestricted upload
A vulnerability classified as critical was found in IBOS 4.5.5. This vulnerability affects unknown code of the component htaccess Handler. The manipulation leads to unrestricted upload. The attack can be initiated remotely. The exploit has been disclosed to t…
-
Medium 6.3
SourceCodester Simple and Beautiful Shopping Cart System upload.php unrestricted upload
A vulnerability was found in SourceCodester Simple and Beautiful Shopping Cart System 1.0 and classified as critical. This issue affects some unknown processing of the file upload.php. The manipulation leads to unrestricted upload. The attack may be initiated…
-
Medium 4.7
HadSky unrestricted upload
A vulnerability was found in HadSky 7.7.16. It has been classified as problematic. This affects an unknown part of the file upload/index.php?c=app&a=superadmin:index. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotel…
-
Medium 5.9
WordPress Embed Any Document – Embed PDF, Word, PowerPoint and Excel Files Plugin <= 2.7.1 is vulnerable to Cross Site Scripting (XSS)
Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), Unrestricted Upload of File with Dangerous Type vulnerability in Awsm Innovations Embed Any Document – Embed PDF, Word, PowerPoint and Excel Files allows Stored XSS via uplo…
-
Medium 6.3
code-projects Simple Online Hotel Reservation System add_room.php unrestricted upload
A vulnerability, which was classified as critical, was found in code-projects Simple Online Hotel Reservation System 1.0. Affected is an unknown function of the file add_room.php. The manipulation leads to unrestricted upload. It is possible to launch the att…
-
Medium 4.7
SourceCodester Storage Unit Rental Management System unrestricted upload
A vulnerability classified as problematic was found in SourceCodester Storage Unit Rental Management System 1.0. This vulnerability affects unknown code of the file classes/Users.php?f=save. The manipulation leads to unrestricted upload. The attack can be ini…
-
Medium 6.3
Simple and Beautiful Shopping Cart System uploadera.php unrestricted upload
A vulnerability classified as critical has been found in Simple and Beautiful Shopping Cart System 1.0. This affects an unknown part of the file uploadera.php. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely. The …
-
Medium 6.3
RockOA acloudCosAction.php.SQL runAction unrestricted upload
A vulnerability, which was classified as critical, was found in RockOA 2.3.2. This affects the function runAction of the file acloudCosAction.php.SQL. The manipulation of the argument fileid leads to unrestricted upload. It is possible to initiate the attack …
-
Medium 6.3
SourceCodester Simple and Nice Shopping Cart Script uploaderm.php unrestricted upload
A vulnerability was found in SourceCodester Simple and Nice Shopping Cart Script 1.0. It has been rated as critical. This issue affects some unknown processing of the file uploaderm.php. The manipulation of the argument submit leads to unrestricted upload. Th…
-
Medium 6.3
xzjie cms upload unrestricted upload
A vulnerability was found in xzjie cms up to 1.0.3 and classified as critical. This issue affects some unknown processing of the file /api/upload. The manipulation of the argument uploadFile leads to unrestricted upload. The attack may be initiated remotely. …
-
Medium 6.3
SourceCodester Simple Music Player save_music.php unrestricted upload
A vulnerability classified as critical has been found in SourceCodester Simple Music Player 1.0. Affected is an unknown function of the file save_music.php. The manipulation of the argument filename leads to unrestricted upload. It is possible to launch the a…
-
Medium 4.7
Meizhou Qingyunke QYKCMS Update api.php unrestricted upload
A vulnerability was found in Meizhou Qingyunke QYKCMS 4.3.0. It has been classified as problematic. This affects an unknown part of the file /admin_system/api.php of the component Update Handler. The manipulation of the argument downurl leads to unrestricted …
-
Medium 4.7
SourceCodester Gadget Works Online Ordering System Products unrestricted upload
A vulnerability was found in SourceCodester Gadget Works Online Ordering System 1.0. It has been classified as problematic. This affects an unknown part of the file admin/products/controller.php?action=add of the component Products Handler. The manipulation o…
-
Medium 6.3
Simple Art Gallery adminHome.php sliderPicSubmit unrestricted upload
A vulnerability was found in Simple Art Gallery 1.0. It has been declared as critical. This vulnerability affects the function sliderPicSubmit of the file adminHome.php. The manipulation leads to unrestricted upload. The attack can be initiated remotely. VDB-…
-
Medium 6.3
SourceCodester Online Pizza Ordering System save_menu unrestricted upload
A vulnerability has been found in SourceCodester Online Pizza Ordering System 1.0 and classified as critical. Affected by this vulnerability is the function save_menu. The manipulation leads to unrestricted upload. The attack can be launched remotely. The exp…
-
Medium 4.7
SourceCodester Online Tours & Travels Management System ab.php unrestricted upload
A vulnerability, which was classified as problematic, was found in SourceCodester Online Tours & Travels Management System 1.0. Affected is an unknown function of the file admin/ab.php. The manipulation of the argument img leads to unrestricted upload. It is …
-
Medium 4.7
Guizhou 115cms index unrestricted upload
A vulnerability was found in Guizhou 115cms 4.2. It has been classified as problematic. Affected is an unknown function of the file /admin/content/index. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit …
-
Medium 6.3
UCMS System File Management Module fileedit.php unrestricted upload
A vulnerability was found in UCMS 1.6 and classified as critical. This issue affects some unknown processing of the file sadmin/fileedit.php of the component System File Management Module. The manipulation of the argument file leads to unrestricted upload. Th…
-
Medium 6.3
UpThemes Theme DesignFolio Plus unrestricted upload
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability has been found in UpThemes Theme DesignFolio Plus 1.2 on WordPress and classified as problematic. Affected by this vulnerability is an unknown functionality. The manipulation leads to unrestricted upload. The at…
-
Medium 4.7
ECshop New Product unrestricted upload
A vulnerability, which was classified as problematic, was found in ECshop up to 4.1.8. This affects an unknown part of the component New Product Handler. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely. The exploi…
-
Medium 4.7
ECshop Backup Database database.php unrestricted upload
A vulnerability, which was classified as problematic, has been found in ECshop up to 4.1.8. Affected by this issue is some unknown functionality of the file admin/database.php of the component Backup Database Handler. The manipulation leads to unrestricted up…
-
Medium 6.5
In Dataiku DSS 11.2.1, an attacker can download other Dataiku files that were uploaded to the myfiles section by specif…
-
Medium 4.7CVE-2023-0943 Public exploit
SourceCodester Best POS Management System Image save_settings unrestricted upload
A vulnerability, which was classified as problematic, has been found in SourceCodester Best POS Management System 1.0. This issue affects the function save_settings of the file index.php?page=site_settings of the component Image Handler. The manipulation of t…
-
Medium 6.3
codeprojects Pharmacy Management System Avatar Image add.php unrestricted upload
A vulnerability has been found in codeprojects Pharmacy Management System 1.0 and classified as critical. This vulnerability affects unknown code of the file add.php of the component Avatar Image Handler. The manipulation leads to unrestricted upload. The att…
-
Medium 5.4
SAP Business Planning and Consolidation - versions 200, 300, allows an attacker with business authorization to upload a…
-
Medium 4.7
EcShop PHP File template.php unrestricted upload
A vulnerability was found in EcShop 4.1.5. It has been classified as critical. This affects an unknown part of the file /ecshop/admin/template.php of the component PHP File Handler. The manipulation leads to unrestricted upload. It is possible to initiate the…
-
Medium 6.3
FastCMS Template Management unrestricted upload
A vulnerability was found in FastCMS 0.1.0. It has been classified as critical. Affected is an unknown function of the component Template Management. The manipulation leads to unrestricted upload. It is possible to launch the attack remotely. The exploit has …
-
Medium 5.9
Path Traversal leading to Local File Inclusion
There is a Path Traversal that leads to a Local File Inclusion in Pandora FMS v764. A function is called to check that the parameter that the user has inserted does not contain malicious characteres, but this check is insufficient. An attacker could insert an…
-
Medium 4.3
An issue has been discovered in GitLab affecting all versions starting from 12.8 before 15.4.6, all versions starting f…
-
Medium 4.7
SourceCodester Online Food Ordering System Menu Form unrestricted upload
A vulnerability was found in SourceCodester Online Food Ordering System 2.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /fos/admin/index.php?page=menu of the component Menu Form. The manipulation o…
-
Medium 4.7CVE-2022-4732 EPSS 38%
Unrestricted Upload of File with Dangerous Type in microweber/microweber
Unrestricted Upload of File with Dangerous Type in GitHub repository microweber/microweber prior to 1.3.2.
-
Medium 5.4
FeehiCMS Unrestricted Upload vulnerability
File Upload vulnerability in Feehi CMS thru 2.1.1 allows attackers to run arbitrary code via crafted image upload.
-
Medium 5.9
Emerson Electric's Proficy Machine Edition Version 9.00 and prior is vulnerable to CWE-434 Unrestricted Upload of File …
-
Medium 6.7
An arbitrary file upload vulnerability in the component /dede/file_manage_control.php of Dedecms v5.7.101 allows attack…
-
Medium 5.9
ETIC Telecom Remote Access Server Unrestricted Upload of File with Dangerous Type
All versions of ETIC Telecom Remote Access Server (RAS) 4.5.0 and prior is vulnerable to malicious file upload. An attacker could take advantage of this to store malicious files on the server, which could override sensitive and useful existing files on the fi…
-
Medium 6.3
Broken access controls on PDFtron WebviewerUI in M-Files Hubshare
Broken access controls on PDFtron WebviewerUI in M-Files Hubshare before 3.3.11.3 allows unauthenticated attackers to upload malicious files to the application server.
-
Medium 6.3
easyii CMS File Upload Management Upload.php file unrestricted upload
A vulnerability, which was classified as critical, has been found in easyii CMS. This issue affects the function file of the file helpers/Upload.php of the component File Upload Management. The manipulation leads to unrestricted upload. The attack may be init…
-
Medium 5.5
wasm2c v1.0.29 was discovered to contain an abort in CWriter::Write.
-
Medium 6.5
WordPress WPide plugin <= 2.6 - Authenticated Arbitrary File Edit/Upload vulnerability
Authenticated (admin+) Arbitrary File Edit/Upload vulnerability in XplodedThemes WPide plugin <= 2.6 at WordPress.