by Kastro
Paper/Archive/CVE-2026-16230

CVE-2026-16230

Strategy11 Formidable Digital Signatures — Formidable Digital Signatures <= 3.0.6 - Unauthenticated Arbitrary File Deletion via Signature Field

EPSS 0.7%CVSS 9.8
critical.is priorityof 100
40
CVSS 9.8 (CNA)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 52.2.522 × 2010.4No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
Formidable Digital Signatures≤ 3.0.6–CNA

Scores by source

Wordfence (CNA)9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refwordfence.com/threat-intel/vulnerabilities/id/c9a5f8ca-7efc-401b-8a93-07fbe7204dce?source=cverefformidableforms.comrefformidableforms.com/changelog/digital-signature-forms-3-1