CVE-2023-38393

Ninja Forms <= 3.6.25 - Missing Authorization to Form Submission Export

2023-07-25 00:00
Rafie Muhammad

Strategic Overview

Status
Patched in 3.6.26
Affected Plugin
Ninja Forms – The Contact Form Builder That Grows With You
Affected Version
<= 3.6.25
CVSS
4.3Medium
Weakness type
CWE-862 · Missing Authorization
CVE
CVE-2023-38393
View all Ninja Forms – The Contact Form Builder That Grows With You vulnerabilities

At a glance

CVE-2023-38393 is a medium-severity Missing Authorization vulnerability in the Ninja Forms WordPress plugin, affecting versions <= 3.6.25. It carries a CVSS score of 4.3 (reachable over the network; low attack complexity). The root cause is a missing authorization check on a reachable function. The issue is fixed in version 3.6.26; sites on affected versions should update now. Disclosed July 2023, reported by Rafie Muhammad.

Vulnerability Overview

The Ninja Forms plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the processing() function in versions up to, and including, 3.6.25. This makes it possible for authenticated attackers, with subscriber-level access and above, to export form submissions via the nf_download_all_subs AJAX action.

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 interaction from a victim user.

CWE-862: Missing Authorization

Ninja Forms <= 3.6.25 carries this weakness at processing(), and reaching it takes a caller who can reach the endpoint. A missing authorization check means a function is reachable by anyone who can reach the endpoint, because the code never asks whether the caller is allowed to perform the action.

Any user who can reach the endpoint gets to run an action reserved for higher-privileged roles, from reading protected data to changing settings or content. For Ninja Forms the fix is 3.6.26: builds <= 3.6.25 are affected, anything from 3.6.26 onward is not.

Remediation

Update to version 3.6.26, or a newer patched version

How does WordSec protect against this?

Because it turns on account access, WordSec's login security is the relevant layer: role-based two-factor, captcha and brute-force limits raise the cost of getting the account this needs. None of that substitutes for the fix: Ninja Forms 3.6.26 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2023-38393https://www.wordfence.com/threat-intel/vulnerabilities/id/d7befdf6-07d7-42c9-876a-abb8f8f9c3dfhttps://nvd.nist.gov/vuln/detail/CVE-2023-38393

Related records

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