CVE-2026-15450
HighCVSS 8.1Exploitation Probability (EPSS)
Low risk31th percentile - higher than 31% of all known CVEs
Summary
The Nex Forms – Ultimate Form Builder – Lite plugin for WordPress is vulnerable to arbitrary file deletion via path traversal. Authenticated attackers with admin-level access can delete arbitrary files on the server, including wp-config.php, by manipulating a database value.
Risk Assessment
An attacker with admin privileges can delete critical files, leading to complete site takeover.
Recommendation
Update the Nex Forms plugin to a version that introduces path validation and permission checks.
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Original NVD description (English source)
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.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS