Description
The Database Addon for Contact Form 7 – CFDB7 plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.4.1. This is due to the plugin storing arbitrary (non-form-tag) submission fields in its db7_forms row and the process_bulk_action() delete handler then matching any stored key whose name contains the substring 'cfdb7_file' and passing the stored value directly to unlink() without validating that the file actually belongs to the submission being deleted or constraining the filename with basename()/realpath(). This makes it possible for unauthenticated attackers to inject a crafted multipart field.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
arshidkv12 Database Addon for Contact Form 7 – CFDB7
Default version status: unaffected
0 to ≤ 1.4.1affected
References
- https://www.wordfence.com/threat-intel/vulnerabilities/id/7de3606a-254c-4e5f-9499-b1cc79dce7c8?source=cve ↗
- https://plugins.trac.wordpress.org/browser/contact-form-cfdb7/tags/1.4.0/inc/admin-subpage.php#L329 ↗
- https://plugins.trac.wordpress.org/browser/contact-form-cfdb7/tags/1.4.0/inc/admin-subpage.php#L325 ↗
- https://plugins.trac.wordpress.org/browser/contact-form-cfdb7/tags/1.4.0/contact-form-cfdb-7.php#L170 ↗
- https://plugins.trac.wordpress.org/changeset?reponame=&old=3737068%40contact-form-cfdb7&new=3737068%40contact-form-cfdb7 ↗