No VulnCrest analysis published for this CVE yet. Below is the original CNA/NVD description, unmodified.
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.
Exploits & detection
No public PoC or detection template found yet.
Timeline
- Published: 28 Oct 2026
- Last modified upstream: 04 Nov 2026
Sources & licenses
- Vulnerability data
- Wordfence Intelligence — record ↗ · Copyright Defiant Inc.
- CVE / CVSS / CWE
- NVD record ↗ (unmodified). This product uses the NVD API but is not endorsed or certified by the NVD. CVE® © The MITRE Corporation.
- Exploitation
- CISA KEV (CC0) · EPSS by FIRST.org
- References used for the analysis
- wordfence Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder <= 3.15.3 - Unauthenticated CSV Injection
- https://wordpress.org/plugins/ninja-forms/#developers
- https://www.vulncheck.com/advisories/ninja-forms-wordpress-plugin-server-side-validation-bypass-via-list-fields
- Analysis, summary and remediation
- © VulnCrest