CVE-2026-67187

Ninja Forms plugin for WordPress before 3.15.4 contains an incomplete server-side validation vulnerability that allows unauthenticated attackers to submit arbitrary values to Checkbox List, Multi-Select List, Image List, Country, and State fields because NF_Abstracts_List falls through to a validate() method that only checks required-field presence. Attackers can submit crafted formula payloads through the unauthenticated nf_ajax_submit endpoint that bypass CSV escaping applied only to Textbox and Textarea fields, resulting in CSV injection when an administrator downloads and opens the exported submissions file.

CVSS v3 7.1 HIGH

7.1^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 3.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact LOW

Scope CHANGED

References

Link	Resource
https://wordpress.org/plugins/ninja-forms/#developers
https://www.vulncheck.com/advisories/ninja-forms-wordpress-plugin-server-side-validation-bypass-via-list-fields

Configurations

No configuration.

History

28 Oct 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-28 16:17

Updated : 2026-10-29 16:19

NVD link : CVE-2026-67187

Mitre link : CVE-2026-67187

CVE.ORG link : CVE-2026-67187

JSON object : View

Products Affected

No product.

CWE

CWE-1236

Improper Neutralization of Formula Elements in a CSV File

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