CVE-2025-3515
BaseFortify
Publication date: 2025-06-17
Last updated on: 2025-08-11
Assigner: Wordfence
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| codedropz | drag_and_drop_multiple_file_upload_-_contact_form_7 | to 1.3.9.0 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-434 | The product allows the upload or transfer of dangerous file types that are automatically processed within its environment. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability exists in the Drag and Drop Multiple File Upload for Contact Form 7 WordPress plugin (versions up to 1.3.8.9). It allows unauthenticated attackers to bypass the plugin's file type blacklist and upload arbitrary files, including dangerous .phar files. Because some server configurations (especially default Apache+mod_php) treat .phar files as executable PHP scripts, this can enable remote code execution on the affected server. The root cause is insufficient validation of uploaded file types, allowing malicious files to be uploaded and potentially executed. [1]
How can this vulnerability impact me? :
If exploited, this vulnerability can allow attackers to upload malicious files that may be executed on the server, leading to remote code execution. This can result in full compromise of the affected website and server, including unauthorized access, data theft, defacement, or further attacks. Since the vulnerability requires no authentication, any attacker can exploit it remotely, making it a critical security risk. [1]
How can this vulnerability be detected on my network or system? Can you suggest some commands?
Detection of this vulnerability involves checking if the affected WordPress site is running the vulnerable versions (up to 1.3.8.9) of the Drag and Drop Multiple File Upload for Contact Form 7 plugin. You can detect attempts to exploit this vulnerability by monitoring for uploads of .phar files or other suspicious file types through the plugin's upload endpoints. Network or web server logs can be searched for POST requests to the plugin's AJAX upload handler (e.g., requests containing "dnd_codedropz_upload") with filenames ending in .phar or other disallowed extensions. Example commands for detection include using grep on web server logs: 1. To find .phar upload attempts in Apache logs: `grep -i ".phar" /var/log/apache2/access.log` 2. To find POST requests to the upload AJAX endpoint: `grep "POST" /var/log/apache2/access.log | grep "dnd_codedropz_upload"` 3. To combine both filters: `grep "POST" /var/log/apache2/access.log | grep "dnd_codedropz_upload" | grep ".phar"` Additionally, checking the installed plugin version via the WordPress admin dashboard or by inspecting the plugin files can help detect vulnerable installations. [2]
What immediate steps should I take to mitigate this vulnerability?
The immediate mitigation step is to update the Drag and Drop Multiple File Upload for Contact Form 7 plugin to version 1.3.9.0 or later, which contains the security fix for this vulnerability. This update improves file validation and sanitization to prevent malicious PHAR file uploads and remote code execution. If updating immediately is not possible, consider temporarily disabling the plugin or restricting file uploads via web server or application-level controls to block .phar and other dangerous file types. Additionally, ensure that your server configuration does not execute .phar files as PHP scripts, and apply strict file extension validation and sanitization. Monitoring and restricting access to the plugin's upload endpoints can also help reduce risk until the patch is applied. [1]