CVE-2023-35909 MEDIUM

CVE-2023-35909: WordPress Ninja Forms Plugin <= 3.6.25 is vulnerable to Denial of Service Attack

Vendor Saturday Drive
Product Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress
Weakness CWE-400
Published December 7, 2023
Last update April 28, 2026
View on NVD All CVEs

CVSS base score

5.3/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

Uncontrolled Resource Consumption vulnerability in Saturday Drive Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress leading to DoS.This issue affects Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress: from n/a through 3.6.25.

Explanation of Vulnerability in Simple Terms

02Summary

Ninja Forms Contact Form versions up to 3.6.25 do not properly limit resource consumption when processing form submissions. An attacker can send a large number of requests to exhaust server resources and cause the site to become slow or unresponsive. No authentication is required. Update to a version newer than 3.6.25.

What an attacker can do

03Attacker Capabilities

Send many requests to overload the server and make the site slow or unavailable.

Potential impact on your site

04Site Impact

Your site may become slow or unresponsive during a resource exhaustion attack.

Conditions required to exploit

05Prerequisites

Network access to the site; no authentication or user interaction required.

Key dates

06Disclosure timeline

December 7, 2023 CVE published
April 28, 2026 Record updated