Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress <= 3.8.0 - Cross-Site Request Forgery to Publicly Accessible Form Submission Export
Strategic Overview
- Status
- Patched in 3.8.1
- Affected Plugin
- Ninja Forms – The Contact Form Builder That Grows With You
- Affected Version
<= 3.8.0- CVSS
- 4.3Medium
- Weakness type
- CWE-352 · Cross-Site Request Forgery (CSRF)
- CVE
CVE-2024-2113
At a glance
CVE-2024-2113 is a medium-severity Cross-Site Request Forgery (CSRF) vulnerability in the Ninja Forms WordPress plugin, affecting versions <= 3.8.0. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 3.8.1; sites on affected versions should update now. Disclosed March 2024, reported by Tobias Weißhaar (kun_19).
Vulnerability Overview
The Ninja Forms Contact Form – The Drag and Drop Form Builder for WordPress plugin for WordPress is vulnerable to Cross-Site Request Forgery in all versions up to, and including, 3.8.0. This is due to missing or incorrect nonce validation on the nf_download_all_subs AJAX action. This makes it possible for unauthenticated attackers to trigger an export of a form's submission to a publicly accessible location via a forged request granted they can trick a site administrator into performing an action such as clicking on a link.
Technical Analysis
The vector marks this flaw as remotely reachable over the network, with low attack complexity — no special timing or configuration is needed, and no privileges on the target site.
CWE-352: Cross-Site Request Forgery (CSRF)
Reaching this weakness in Ninja Forms <= 3.8.0 takes a caller who can reach the endpoint. Cross-site request forgery abuses the fact that browsers attach a victim's cookies to any request, so a state-changing action that only checks who you are, not whether you meant to act, can be triggered from another site.
An attacker who gets a logged-in user to load a crafted page can perform that action as them, with the impact scaling to whatever the victim's role is allowed to do. For Ninja Forms the fix is 3.8.1: builds <= 3.8.0 are affected, anything from 3.8.1 onward is not.
Remediation
Update to version 3.8.1, 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 3.8.1 closes this, and updating the plugin is the step that ends it.
- Firewall
- Alerts
External References
Related records
Same weakness class
Other vulnerabilities in Ninja Forms – The Contact Form Builder That Grows With You
- 9.8Ninja Forms Contact Form Code Injection
- 9.8CVE-2019-15025: Ninja Forms Contact Form <= 3.3.21.1 SQL Injection
CVE-2019-15025 - 9.8CVE-2016-1209: Ninja Forms Contact Form… Arbitrary File Upload
CVE-2016-1209 - 9.1CVE-2018-20981: Ninja Forms Insufficient Restrictions during Export
CVE-2018-20981 - 8.8CVE-2021-24163: Ninja Forms Contact Form SendWP Plugin Installation
CVE-2021-24163 - 8.8Ninja Forms Contact Form <= 2.9.55.1 SQL Injection
- 8.6CVE-2018-16308: Ninja Forms Contact Form <= 3.3.13 CSV Injection
CVE-2018-16308 - 8.4Ninja Forms Contact Form <= 2.9.27 CSV Injection
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