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
937 results · Clear filters · Feed
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Medium 6.8CVE-2023-32562 EPSS 46%
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OpenRapid RapidCMS upload.php unrestricted upload
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Dahua Smart Park Management unrestricted upload
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Medium 6.3
SourceCodester House Rental and Property Listing System btn_functions.php unrestricted upload
A vulnerability, which was classified as critical, was found in SourceCodester House Rental and Property Listing System 1.0. Affected is an unknown function of the file btn_functions.php. The manipulation leads to unrestricted upload. It is possible to launch…
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Medium 5.5
Chengdu Flash Flood Disaster Monitoring and Warning System FileHandler.ashx unrestricted upload
A vulnerability classified as problematic was found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0. This vulnerability affects unknown code of the file /Service/FileHandler.ashx. The manipulation of the argument userFile leads to unrestrict…
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Medium 5.5
Chengdu Flash Flood Disaster Monitoring and Warning System Ajaxfileupload.ashx unrestricted upload
A vulnerability was found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0. It has been rated as problematic. Affected by this issue is some unknown functionality of the file /Controller/Ajaxfileupload.ashx. The manipulation of the argument f…
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Medium 5.5
Chengdu Flash Flood Disaster Monitoring and Warning System upload.aspx unrestricted upload
A vulnerability has been found in Chengdu Flash Flood Disaster Monitoring and Warning System 2.0 and classified as critical. This vulnerability affects unknown code of the file /App_Resource/UEditor/server/upload.aspx. The manipulation of the argument file le…
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Medium 5.5
Gen Technology Four Mountain Torrent Disaster Prevention and Control of Monitoring and Early Warning System UploadFloodPlanFileUpdate.ashx unrestricted upload
A vulnerability, which was classified as critical, was found in Gen Technology Four Mountain Torrent Disaster Prevention and Control of Monitoring and Early Warning System up to 20230712. This affects an unknown part of the file /Duty/AjaxHandle/UploadFloodPl…
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Medium 4.3
Bug Finder Foody Friend Profile Picture profile unrestricted upload
A vulnerability, which was classified as problematic, has been found in Bug Finder Foody Friend 1.0. Affected by this issue is some unknown functionality of the file /user/profile of the component Profile Picture Handler. The manipulation of the argument prof…
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Medium 5.5
Pygments vulnerable to ReDoS
A ReDoS issue was discovered in pygments/lexers/smithy.py in pygments through 2.15.0 via SmithyLexer.
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Medium 6.7
Unrestricted Upload of File with Dangerous Type in admidio/admidio
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Medium 6.3
Suncreate Mountain Flood Disaster Prevention Monitoring and Early Warning System UpLoadFloodPlanFile UpLoadFloodPlanFile.ashx unrestricted upload
A vulnerability, which was classified as critical, has been found in Suncreate Mountain Flood Disaster Prevention Monitoring and Early Warning System up to 20230706. This issue affects some unknown processing of the file /Duty/AjaxHandle/UpLoadFloodPlanFile.a…
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Medium 6.3
Suncreate Mountain Flood Disaster Prevention Monitoring and Early Warning System Duty Write-UploadFile UploadFile.ashx unrestricted upload
A vulnerability classified as critical was found in Suncreate Mountain Flood Disaster Prevention Monitoring and Early Warning System up to 20230706. This vulnerability affects unknown code of the file /Duty/AjaxHandle/Write/UploadFile.ashx of the component Du…
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Medium 6.3
Suncreate Mountain Flood Disaster Prevention Monitoring and Early Warning System Duty Module UploadHandler.ashx unrestricted upload
A vulnerability was found in Suncreate Mountain Flood Disaster Prevention Monitoring and Early Warning System up to 20230704. It has been rated as critical. Affected by this issue is some unknown functionality of the file /Duty/AjaxHandle/UploadHandler.ashx o…
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Medium 6.3
SmartWeb Infotech Job Board My Profile Page account unrestricted upload
A vulnerability was found in SmartWeb Infotech Job Board 1.0 and classified as critical. Affected by this issue is some unknown functionality of the file /settings/account of the component My Profile Page. The manipulation of the argument filename leads to un…
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Medium 6.3
SourceCodester Shopping Website insert-product.php unrestricted upload
A vulnerability has been found in SourceCodester Shopping Website 1.0 and classified as critical. Affected by this vulnerability is an unknown functionality of the file insert-product.php. The manipulation leads to unrestricted upload. The attack can be launc…
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Medium 6.5
jeecg-boot unrestricted file upload vulnerability
jjeecg-boot V3.5.0 has an unauthorized arbitrary file upload in /jeecg-boot/jmreport/upload interface.
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Medium 6.3
code-projects Supplier Management System Picture btn_functions.php unrestricted upload
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Medium 6.3CVE-2023-3187 Public exploit
PHPGurukul Teachers Record Management System Profile Picture changeimage.php unrestricted upload
A vulnerability, which was classified as critical, has been found in PHPGurukul Teachers Record Management System 1.0. Affected by this issue is some unknown functionality of the file /changeimage.php of the component Profile Picture Handler. The manipulation…
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Medium 6.3
code-projects Agro-School Management System Attachment Image btn_functions.php unrestricted upload
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Medium 6.3
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Unrestricted Upload of File with Dangerous Type vulnerability in FTP function on Mitsubishi Electric Corporation MELSEC iQ-R Series EtherNet/IP module RJ71EIP91 and MELSEC iQ-F Series EtherNet/IP module FX5-ENET/IP allows a remote unauthenticated attacker to …
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Medium 6.8
ITPison OMICARD EDM - Arbitrary File Upload
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Medium 6.3
VaultPress Plugin MailPoet Plugin class.vaultpress-hotfixes.php protect_aioseo_ajax unrestricted upload
A vulnerability was found in VaultPress Plugin up to 1.6.0 on WordPress. It has been declared as critical. Affected by this vulnerability is the function protect_aioseo_ajax of the file class.vaultpress-hotfixes.php of the component MailPoet Plugin. The manip…
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Medium 6.3
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Medium 4.7CVE-2023-2924 EPSS 24%
Supcon SimField reportupload.aspx unrestricted upload
A vulnerability, which was classified as critical, has been found in Supcon SimField up to 1.80.00.00. Affected by this issue is some unknown functionality of the file /admin/reportupload.aspx. The manipulation of the argument files[] leads to unrestricted up…
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Medium 4.7
PHPOK unrestricted upload
A vulnerability, which was classified as problematic, was found in PHPOK 6.4.100. This affects an unknown part of the file /admin.php?c=upload&f=zip&_noCache=0.1683794968. The manipulation leads to unrestricted upload. It is possible to initiate the attack re…
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Medium 6.3
code-projects Simple Photo Gallery unrestricted upload
A vulnerability was found in code-projects Simple Photo Gallery 1.0. It has been declared as critical. This vulnerability affects unknown code. The manipulation leads to unrestricted upload. The attack can be initiated remotely. VDB-229282 is the identifier a…
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Medium 6.3
Tongda OA GatewayController.php actionGetdata unrestricted upload
A vulnerability classified as critical has been found in Tongda OA 11.10. This affects the function actionGetdata of the file GatewayController.php. The manipulation leads to unrestricted upload. It is possible to initiate the attack remotely. The exploit has…
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Medium 6.3
Weaver E-Office uploadify.php unrestricted upload
A vulnerability was found in Weaver E-Office 9.5. It has been classified as critical. This affects an unknown part of the file /inc/jquery/uploadify/uploadify.php. The manipulation of the argument Filedata leads to unrestricted upload. It is possible to initi…
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Medium 6.3
DedeCMS config.php UpDateMemberModCache unrestricted upload
A vulnerability was found in DedeCMS 5.7.106 and classified as critical. Affected by this issue is the function UpDateMemberModCache of the file uploads/dede/config.php. The manipulation leads to unrestricted upload. The attack may be launched remotely. The e…
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Medium 4.7
Zhong Bang CRMEB SystemAttachmentServices.php videoUpload unrestricted upload
A vulnerability was found in Zhong Bang CRMEB 4.6.0. It has been declared as critical. This vulnerability affects the function videoUpload of the file \crmeb\app\services\system\attachment\SystemAttachmentServices.php. The manipulation of the argument filenam…
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Medium 6.3CVE-2023-2246 Public exploit
SourceCodester Online Pizza Ordering System unrestricted upload
A vulnerability has been found in SourceCodester Online Pizza Ordering System 1.0 and classified as critical. This vulnerability affects unknown code of the file admin/ajax.php?action=save_settings. The manipulation of the argument img leads to unrestricted u…
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Medium 6.3CVE-2023-2245 Public exploit
hansunCMS unrestricted upload
A vulnerability was found in hansunCMS 1.4.3. It has been declared as critical. This vulnerability affects unknown code of the file /ueditor/net/controller.ashx?action=catchimage. The manipulation leads to unrestricted upload. The attack can be initiated remo…
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Medium 6.3
yuan1994 tpAdmin Upload.php Upload unrestricted upload
** UNSUPPORTED WHEN ASSIGNED ** A vulnerability, which was classified as problematic, has been found in yuan1994 tpAdmin 1.3.12. This issue affects the function Upload of the file application\admin\controller\Upload.php. The manipulation of the argument file …
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Medium 6.3
SourceCodester Online Computer and Laptop Store Avatar unrestricted upload
A vulnerability has been found in SourceCodester Online Computer and Laptop Store 1.0 and classified as critical. Affected by this vulnerability is an unknown functionality of the file /admin/?page=user of the component Avatar Handler. The manipulation leads …
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Medium 5.3
Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers Arbitrary File Upload Vulnerability
A vulnerability in the web-based management interface of Cisco RV340, RV340W, RV345, and RV345P Dual WAN Gigabit VPN Routers could allow an unauthenticated, remote attacker to upload arbitrary files to an affected device. This vulnerability is due to insuffic…
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