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Vulnerability record · CVE-2026-16230 · published 11 August 2026

CVE-2026-16230: Relative path traversal vulnerability

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.

9.8 CVSS 3.1 Critical EPSS 0.67% · top 49.8% CWE-23 · Relative path traversal Deferred
9.8CVSS 3.1 base score
0.67%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
12 Aug 2026Last modified by NVD

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.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://formidableforms.com/
https://formidableforms.com/changelog/digital-signature-forms-3-1/
https://www.wordfence.com/threat-intel/vulnerabilities/id/c9a5f8ca-7efc-401b-8a93-07fbe7204dce?source=cve

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Source: NIST National Vulnerability Database (record CVE-2026-16230), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.