CVE-2026-16230

Critical

Description

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.

SeverityCritical
CVSS9.8
Exploit probability—
ProductFormidable Digital Signatures
PublishedAug 11, 2026
First seenAug 11, 2026
Weakness typeCWE-23CWE-23

How to fix

Sources list no fixed version or patch link for this vulnerability.

Affected products

ProductAffected versionsFixed in
Strategy11 Formidable Digital Signaturesv ≤ 3.0.6—

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