CVE-2026-16230 Formidable Digital Signatures <= 3.0.6 - Unauthenticated Arbitrary File Deletion via Signature Field
Unauthenticated attackers can delete arbitrary files on the server via path traversal in the Formidable Digital Signatures WordPress plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16230?
CVE-2026-16230 is a critical path traversal vulnerability in Strategy11 Formidable Digital Signatures, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-23
Which versions are affected by CVE-2026-16230?
How do I fix CVE-2026-16230?
No fix has been published for CVE-2026-16230 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2026-16230 being exploited?
There is no known exploitation of CVE-2026-16230 in the wild and no public exploit code.
Sources
Also known as GHSA-vgm7-9pjc-5gcf.