The Formidable Digital Signatures plugin for WordPress is vulnerable to file deletion due to insufficient file path validation in the delete_file function in all versions up to, and including, 3.0.6. This makes it possible for unauthenticated attackers to delete files on the server by supplying an attacker-controlled filename in the item_meta[field_id][content] parameter alongside the delete_saved_image flag during the standard entry-creation POST flow on any form that accepts anonymous submissions.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Formidable Signature Plugin | — | Update formidable-signature plugin to version 3.1, or a newer patched version | Aug 12, 2026 | Aug 11, 2026 |
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