The Drag and Drop Multiple File Upload for Contact Form 7 plugin for WordPress is vulnerable to Path Traversal leading to Arbitrary File Read in versions up to and including 1.3.9.6. This is due to the plugin using client-supplied mfile[] POST values as the source of truth for email attachment selection without performing any server-side upload provenance check, path canonicalization, or directory containment boundary enforcement. In dnd_wpcf7_posted_data(), each user-submitted filename is directly appended to the plugin's upload URL without sanitization. In dnd_cf7_mail_components(), the URL is converted back to a filesystem path using str_replace() and only file_exists() is used as the acceptance check before attaching the file to the outgoing CF7 email. This makes it possible for unauthenticated attackers to read and exfiltrate arbitrary files readable by the web server process via path traversal sequences in the mfile[] parameter, with files being disclosed as email attachments. Note: This vulnerability is limited to the 'wp-content' folder due to the wpcf7_is_file_path_in_content_dir() function in the Contact Form 7 plugin.
CVE-2026-5710 is a high severity with CVSS 7.5 File Upload issue affecting the Plugin Drag and Drop Multiple File Upload for Contact Form 7. It affects Versions up to 1.3.9.6 and is fixed in 1.3.9.7.
CVE-2026-5710 is tracked for the Plugin Drag and Drop Multiple File Upload for Contact Form 7 as high severity with CVSS 7.5. The affected range is Versions up to 1.3.9.6. Update Drag and Drop Multiple File Upload for Contact Form 7 to 1.3.9.7 or newer where that version is compatible with the site.
| Software Type | Plugin |
|---|---|
| Software Slug |
drag-and-drop-multiple-file-upload-contact-form-7
View on wordpress.org
|
| CVE | CVE-2026-5710 |
| Patched Versions |
1.3.9.7
|
| Affected Versions |
Versions up to 1.3.9.6
|
These internal links group the same WordPress plugin by CVE, issue type, severity, and patch status so operators and search engines can connect the full vulnerability cluster.
Drag and Drop Multiple File Upload - Contact Form 7 <= 1.3.3.2 - Arbitrary File Upload
Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.8.7 - Unauthenticated Arbitrary File Deletion
Drag and Drop Multiple File Upload – Contact Form 7 <= 1.3.6.5 - Cross-Site Request Forgery in dnd_upload_cf7_upload and dnd_codedropz_upload_delete
Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.6 - Unauthenticated Arbitrary File Upload via Non-ASCII Filename Blacklist Bypass
Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.9.5 - Unauthenticated Arbitrary File Upload
Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.8.9 - Unauthenticated Arbitrary File Upload via Insufficient Blacklist Checks
Drag and Drop Multiple File Upload - Contact Form 7 <= 1.3.7.3 - Unauthenticated Arbitrary File Upload
Drag and Drop Multiple File Upload for Contact Form 7 <= 1.3.8.7 - Unauthenticated PHP Object Injection via PHAR to Arbitrary File Deletion
This record contains material that is subject to copyright
License: Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy. Read more
License: CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE®). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy. Read more
