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Ninja Forms CVE-2018-16308

HIGH
Improper Neutralization of Formula Elements in a CSV File (CWE-1236)
2018-09-01 cve@mitre.org
8.6
CVSS 3.0 · NVD
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Vulnerability Assessment

Weakness
CWE
ASVS 5.0
V1 - Encoding and Sanitization CSV injection prevention
Impact

CVSS score of 8.6 (HIGH). Attack characteristics: local attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available.

Exploit ScenarioDerived

Successful exploitation could compromise the high-severity affected system.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 1.8% exploitation probability (EPSS)

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AnalysisAI

The Ninja Forms plugin before 3.3.14.1 for WordPress allows CSV injection. Rated high severity (CVSS 8.6), this vulnerability is no authentication required, low attack complexity. Public exploit code available and no vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

This vulnerability is classified under CWE-1236. The Ninja Forms plugin before 3.3.14.1 for WordPress allows CSV injection. Affected products include: Ninjaforms Ninja Forms. Version information: before 3.3.14.1.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 8.6 HIGH
AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

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

Threat Intelligence Overview

EPSS Score
1.8%
Top 24% exploitable
Exploit
POC
Public exploit code exists
Data Quality
3 sources
Confidence: Low

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC Yes
EPSS 1.8%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
Poc
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

65
Low Medium High Critical
KEV: 0
EPSS: +2
CVSS: +43
PoC: +20
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Code Injection CRITICAL

Code injection occurs when an application accepts user input and passes it directly into a language interpreter or evaluator without proper sanitization.

Affected Products (CPE)NVD

cpe:2.3:a:ninjaforms:ninja_forms:*:*:*:*:*:wordpress:*:*
CVE-2016-1209 CRITICAL POC
9.8 May 14

The Ninja Forms plugin before 2.9.42.1 for WordPress allows remote attackers to conduct PHP object injection attacks via

CVE-2026-92438 HIGH POC
8.8 Sep 22

Stored cross-site scripting in the Ninja Forms WordPress plugin 3.15.3 lets an unauthenticated visitor plant a script pa

CVE-2021-24163 HIGH POC
8.8 Apr 05

The AJAX action, wp_ajax_ninja_forms_sendwp_remote_install_handler, did not have a capability check on it, nor did it ha

CVE-2026-91827 HIGH POC
7.5 Sep 22

PHP Object Injection in the Ninja Forms WordPress plugin 3.15.3 allows unauthenticated attackers to plant serialized pay

CVE-2022-2903 HIGH POC
7.2 Sep 26

The Ninja Forms Contact Form WordPress plugin before 3.6.13 unserialises the content of an imported file, which could le

CVE-2021-24889 HIGH POC
7.2 Nov 29

The Ninja Forms Contact Form WordPress plugin before 3.6.4 does not escape keys of the fields POST parameter, which coul

CVE-2021-34647 MEDIUM POC
6.5 Sep 22

The Ninja Forms WordPress plugin is vulnerable to sensitive information disclosure via the bulk_export_submissions funct

CVE-2024-7354 MEDIUM POC
6.1 Sep 02

The Ninja Forms WordPress plugin before 3.8.11 does not escape an URL before outputting it back in an attribute, leading

CVE-2023-37979 MEDIUM POC
6.1 Jul 27

Unauth. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low at

CVE-2023-1835 MEDIUM POC
6.1 May 15

The Ninja Forms Contact Form WordPress plugin before 3.6.22 does not properly escape user input before outputting it bac

CVE-2021-24165 MEDIUM POC
6.1 Apr 05

In the Ninja Forms Contact Form WordPress plugin before 3.4.34, the wp_ajax_nf_oauth_connect AJAX action was vulnerable

CVE-2018-19796 MEDIUM POC
6.1 Dec 03

An open redirect in the Ninja Forms plugin before 3.3.19.1 for WordPress allows Remote Attackers to redirect a user via

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