Medium severity · published Jul 24, 2026
CVE-2026-15663
Ninja Forms <= 3.14.9 - Authenticated (Administrator+) SQL Injection via Import File 'settings' Key
4.9
CVSS
0.5%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
NF
Ninja Forms – The Contact Form Builder That Grows With You · kstover
through 3.14.9 · source: vendor
Affected product
NF
Ninja Forms – The Contact Form Builder That Grows With You
kstover
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-15663
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-15663
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.14.9/includes/AJAX/REST/BatchProcess.php#L41
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.14.9/includes/Abstracts/Model.php#L714
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.14.9/includes/Admin/Menus/ImportExport.php#L63
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/browser/ninja-forms/tags/3.14.9/includes/Admin/Processes/ImportForm.php#L357
plugins.trac.wordpress.org
https://plugins.trac.wordpress.org/changeset?reponame=&old=3614986%40ninja-forms&new=3614986%40ninja-forms
www.wordfence.com
https://www.wordfence.com/threat-intel/vulnerabilities/id/2fda47d8-8e8c-4103-aabb-c70935e13450?source=cve
More from Ninja Forms – The Contact Form Builder That Grows With You
7.5
CVE-2026-1239
Ninja Forms <= 3.14.1 - Missing Authorization to Unauthenticated Sensitive Information Disclosure via token/refresh REST Endpoint
7.5
CVE-2026-2268
Ninja Forms <= 3.14.0 - Unauthenticated Information Disclosure in nf_ajax_submit AJAX Action
7.5
CVE-2025-11924
Ninja Forms – The Contact Form Builder That Grows With You <= 3.13.2 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Exposure via Unscoped Bearer Token
7.2
CVE-2026-19769
Ninja Forms <= 3.15.1 - Unauthenticated Stored Cross-Site Scripting via Repeater Child 'type' Confusion via Unmatched Array Key
6.6
CVE-2026-11363
Ninja Forms <= 3.14.6 - Authenticated (Administrator+) PHP Object Injection via Form Import
