WordPress security changelog
MEDIUM CVE-2026-15663 Deferred

Ninja Forms import metadata keys permit SQL injection

Ninja Forms through 3.14.9 lets an administrator import a crafted form whose attacker-controlled settings object contains malicious metadata keys. The normal import listener reads the uploaded file and the nf_batch_process action accepts the decoded import data after manage_options and nonce checks. Those keys can reach SQL assembled by _save_setting() in Model.php and the batch importer's insert_form_meta() while only the metadata values are escaped, allowing additional SQL to be appended to existing database queries. This record received deeper review despite its 4.9 score because the primitive is SQL injection.

CVE / CNA score 4.9 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
Ninja Forms – The Contact Form Builder That Grows With You
Plugin slug
ninja-forms
Affected
<= 3.14.9
Safe version
3.14.10
Published
Jul 24, 2026
Weakness
CWE-89 — Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')

This CVE was published Jul 24, 2026 and is one of 66 known issues for this plugin.

What to do

Update, patch or deactivate.

Update Ninja Forms to 3.14.10 or later and import forms only from trusted sources. The public 3.14.10 release escapes metadata keys in the batch importer's form, action and field insertion loops. The CNA also identifies the legacy Model.php _save_setting() query as a sink, but that file is unchanged between the official 3.14.9 and 3.14.10 packages and the public record does not explain why the legacy path is no longer reachable; administrators should retain the trusted-import restriction.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The Ninja Forms – The Contact Form Builder That Grows With You plugin for WordPress is vulnerable to generic SQL Injection via Import File 'settings' Key in all versions up to, and including, 3.14.9 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This makes it possible for authenticated attackers, with administrator-level access and above, to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. The vulnerable keys originate from the 'settings' object in an attacker-controlled import file processed via file_get_contents() or base64-decoded/JSON-decoded blobs, bypassing wp_magic_quotes protections entirely; two distinct sinks are affected — _save_setting() in Model.php and insert_form_meta() in ImportForm.php — as only the value side is escaped while the key side receives no sanitization or parameterization at any point in the call chain.

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

References

Primary and upstream sources