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)
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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]
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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.
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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]
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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.
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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.
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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]
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Implementation
When running on a web server that supports case-insensitive filenames, perform case-insensitive evaluations of the extensions that are provided.
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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
3,441 results · Feed
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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 …
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Critical 9.1CVE-2023-28725 EPSS 21%
General Bytes Crypto Application Server (CAS) 20230120, as distributed with General Bytes BATM devices, allows remote a…
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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 …
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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…
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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. …
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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…
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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 …
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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…
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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-…
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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…
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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 …
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High 7.2CVE-2023-26262 Public exploit
An issue was discovered in Sitecore XP/XM 10.3. As an authenticated Sitecore user, a unrestricted language file upload …
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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 …
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High 7.2
Unrestricted Upload of File with Dangerous Type in cockpit-hq/cockpit
Unrestricted Upload of File with Dangerous Type in GitHub repository cockpit-hq/cockpit prior to 2.4.1.
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High 8.8
A File Upload vulnerability exists in AvantFAX 3.3.7. An authenticated user can bypass PHP file type validation in File…
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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…
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High 7.5
SmartBear Zephyr Enterprise through 7.15.0 allows unauthenticated users to upload large files, which could exhaust the …
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Critical 9.8
An issue in Wyomind Help Desk Magento 2 extension v.1.3.6 and before fixed in v.1.3.7 allows attacker to execute arbitr…
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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…
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High 8.8
Envato Elements <= 2.0.10 & Template Kit <= 1.0.13 - Authenticated (Contributor+) Arbitrary File Upload
The Envato Elements & Download and Template Kit – Import plugins for WordPress are vulnerable to arbitrary file uploads due to insufficient validation of file type upon extracting uploaded Zip files in the installFreeTemplateKit and uploadTemplateKitZipFile f…
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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…
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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…
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High 7.5
CleverStupidDog yf-exam 1.8.0 is vulnerable to File Upload. There is no restriction on the suffix of the uploaded file,…
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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…
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High 7.2CVE-2023-24249 Public exploit
laravel-admin has Arbitrary File Upload vulnerability
An arbitrary file upload vulnerability in laravel-admin v1.8.19 allows attackers to execute arbitrary code via a crafted PHP file.
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Critical 9.8
Cloudflow - Unauthenticated file upload vulnerability
Cloudflow contains a unauthenticated file upload vulnerability, which makes it possible for an attacker to upload malicious files to the CLOUDFLOW PROOFSCOPE built-in storage.
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High 7.5
In affected versions of Octopus Deploy it is possible to upload a zipbomb file as a task which results in Denial of Ser…
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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…
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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…
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Critical 9.8
File Upload Vulnerability in Yupoxion BearAdmin before commit 10176153528b0a914eb4d726e200fd506b73b075 allows attacker …
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High 8.4
SAP BusinessObjects Business Intelligence Platform (CMC) - versions 420, 430, allows an authenticated admin user to upl…
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Medium 5.4
SAP Business Planning and Consolidation - versions 200, 300, allows an attacker with business authorization to upload a…
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Critical 9.8
An arbitrary file upload vulnerability in the component /fos/admin/ajax.php of Food Ordering System v2.0 allows attacke…
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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…
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Critical 9.8
File upload vulnerability in Future-Depth Institutional Management Website (IMS) 1.0, allows unauthorized attackers to …
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Critical 9.8
Raffle Draw System v1.0 was discovered to contain a local file inclusion vulnerability via the page parameter in index.…
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High 8.2
Missing file upload type validation in pimcore/pimcore
Pimcore is an Open Source Data & Experience Management Platform: PIM, MDM, CDP, DAM, DXP/CMS & Digital Commerce. The upload functionality for updating user profile does not properly validate the file content-type, allowing any authenticated user to bypass thi…
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High 8.8
File Upload vulnerability in phpwcms 1.9.25 allows remote attackers to run arbitrary code via crafted file upload to in…
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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 …
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Critical 9.8
Monnai aaPanel host system v1.5 contains an access control issue which allows attackers to escalate privileges and exec…