NEX-Forms <= 9.2.3 — Authenticated (Admin+) Arbitrary File Deletion via Path Traversal via 'location' Parameter

Am I affected?

• Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under NEX-Forms – Ultimate Forms Plugin for WordPress.
• No admin access? Run a passive check of your site. It reads public files only.

What to do

1. Update to version 9.2.4, or a newer patched version
2. Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
3. Watch NEX-Forms – Ultimate Forms Plugin for WordPress to get an email when the next vulnerability is published.

Advisory

Source description from Wordfence Intelligence, credited to Wordfence PRISM.

The Nex Forms – Ultimate Form Builder – Lite plugin for WordPress is vulnerable to arbitrary file deletion via path traversal in versions up to, and including, 9.2.3. This is due to the delete_file() AJAX handler retrieving a file path from the database and passing it directly to unlink() with no validation (no realpath(), basename(), or allowlist check), combined with the insert_record() AJAX handler that lets the same authenticated user store an arbitrary value in the target 'location' column (wp_kses() only strips HTML tags and does not neutralize path traversal or absolute paths). This makes it possible for authenticated attackers, with admin-level access and above, to delete arbitrary files on the affected site's server, including wp-config. When the plugin's user-level option is configured to something else, this may be exploitable with lower privileges.

Exploits & references

Proof-of-concept & detection

No public proof-of-concept or detection template is known for this vulnerability.

Advisories & patches

• Advisorywordfence.com

Related CVEs

Timeline

1. Jul 31, 2026

   CVE published

   Severity high, CVSS 8.1

2. Nov 13, 2026

   Record last updated