Ninja Forms Contact Form <= 2.9.27 — CSV Injection
39b6a1c7-2f8a-49e9-8807-a53a25524018Published · Updated Action summary
Affected: ≤2.9.27Update to 2.9.28 or newer
All remediation steps- Severity
- High8.4
- CVSS
- 8.4CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:HPrivileges required- High
UI:RUser interaction- Required
S:CScope- Changed
C:HConfidentiality- High
I:HIntegrity- High
A:HAvailability- High
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder ninja-forms
- Affected≤ 2.9.27
- Patched in2.9.28
Update to 2.9.28 or newer.
You are affected if you run ≤ 2.9.27. Version 2.9.28 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.9.28, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Smit B. Shah, Hely H. Shah.
The Ninja Forms Contact Form plugin for WordPress is vulnerable to CSV Injection in versions up to, and including, 2.9.27 via the export() function. This allows authenticated attackers to embed untrusted input into exported CSV files, which can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in Ninja Forms – Contact Form Builder with Calculators, Quizzes, Signatures & AI Form Builder
All 95| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium6.1 | Reflected DOM-Based Cross-Site Scripting via 'querystring:<key>' URL Parameter ≤3.15.5Update to 3.15.6 | CVE-2026-100151 | |
| Medium6.5 | Unauthenticated Arbitrary Shortcode Execution via 'formData' Field Value via Success Message Merge Tag ≤3.15.5Update to 3.15.6 | CVE-2026-100155 | |
| Medium5.4 | Authenticated (Subscriber+) Arbitrary Shortcode Execution via '{wp:user_display_name}' Merge Tag via display_name ≤3.15.5Update to 3.15.6 | CVE-2026-101326 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting via 'extra' Parameter via Metadata Key Normalization ≤3.15.5Update to 3.15.6 | CVE-2026-109997 | |
| Medium5.8 | Unauthenticated CSV Injection ≤3.15.3Update to 3.15.4 | CVE-2026-67187 |
- Medium6.1Reflected DOM-Based Cross-Site Scripting via 'querystring:<key>' URL Parameter
≤3.15.5Update to 3.15.6
- Medium6.5Unauthenticated Arbitrary Shortcode Execution via 'formData' Field Value via Success Message Merge Tag
≤3.15.5Update to 3.15.6
- Medium5.4Authenticated (Subscriber+) Arbitrary Shortcode Execution via '{wp:user_display_name}' Merge Tag via display_name
≤3.15.5Update to 3.15.6
- High7.2Unauthenticated Stored Cross-Site Scripting via 'extra' Parameter via Metadata Key Normalization
≤3.15.5Update to 3.15.6
- Medium5.8Unauthenticated CSV Injection
≤3.15.3Update to 3.15.4
Timeline
CVE published
Severity high, CVSS 8.4
Record last updated
Sources & licenses
- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.