CVE-2018-16308

Ninja Forms Contact Form <= 3.3.13 - CSV Injection

2018-08-19 00:00

Strategic Overview

Status: Patched in 3.3.14
Affected Plugin: Ninja Forms – The Contact Form Builder That Grows With You
Affected Version: <= 3.3.13
CVSS: 8.6High
Weakness type: CWE-74 · Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CVE: CVE-2018-16308

View all Ninja Forms – The Contact Form Builder That Grows With You vulnerabilities

At a glance

CVE-2018-16308 is a high-severity Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') vulnerability in the Ninja Forms WordPress plugin, affecting versions <= 3.3.13. It carries a CVSS score of 8.6 (low attack complexity; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.3.14; sites on affected versions should update now. Disclosed August 2018.

Vulnerability Overview

The Ninja Forms plugin before 3.3.14.1 for WordPress allows CSV injection.

Technical Analysis

The vector marks this flaw as requiring local or adjacent access, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component.

Remediation

Update to version 3.3.14, or a newer patched version

How does WordSec protect against this?

The attempt arrives as an ordinary request to Ninja Forms: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Ninja Forms 3.3.14 closes this, and updating the plugin is the step that ends it.

Firewall
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2018-16308 https://www.wordfence.com/threat-intel/vulnerabilities/id/44158748-798e-4b17-9deb-f54520779c62 https://nvd.nist.gov/vuln/detail/CVE-2018-16308

Related records

Same weakness class

8.4Ninja Forms Contact Form <= 2.9.27 CSV Injection

Other vulnerabilities in Ninja Forms – The Contact Form Builder That Grows With You

CVSS Vector

8.6

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Base

Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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