CVE-2026-67187

Ninja Forms WordPress Plugin < 3.15.4 Server-Side Validation Bypass via List Fields

HIGH
7.1
CVSS Score
Published: October 28, 2026 at 03:19 PM UTC
Updated: October 29, 2026 at 04:19 PM UTC
1 product affected across 1 vendorNinjaforms

Using Ninja Forms by Saturday Drive?

Get instant alerts when new vulnerabilities affect Ninja Forms - before attackers find them.

Real-time alertsTrack your software stackFree plan available
Severity
HIGH7.1
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Ninjaforms· Ninjaformswordpress-plugin
90%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

CVSS

7.1HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
LOW
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-1236

Get alerted

Stop reading CVE feeds looking for your own stack

Track the products you run and VulnTracker tells you when a new CVE affects them — with what is known about fixing it, and nothing about the rest.

Free plan, no card