CVE-2026-5192

Forminator Forms – Contact Form, Payment Form & Custom Form Builder <= 1.52.1 - Unauthenticated Arbitrary File Read via 'upload-1[file][file_path]'

2026-05-04 17:49
daroo

Strategic Overview

Status
Patched in 1.52.2
Affected Plugin
Forminator Forms – Contact Form, Payment Form & Custom Form Builder
Affected Version
<= 1.52.1
CVSS
7.5High
Weakness type
CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CVE
CVE-2026-5192
View all Forminator Forms – Contact Form, Payment Form & Custom Form Builder vulnerabilities

At a glance

CVE-2026-5192 is a high-severity Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability in the Forminator Forms WordPress plugin, affecting versions <= 1.52.1. It carries a CVSS score of 7.5 (reachable over the network; low attack complexity; high confidentiality impact). Exploitation requires no authentication. The issue is fixed in version 1.52.2; sites on affected versions should update now. Disclosed May 2026, reported by daroo.

Vulnerability Overview

The Forminator Forms – Contact Form, Payment Form & Custom Form Builder plugin for WordPress is vulnerable to Path Traversal in versions up to, and including, 1.52.1 via the 'upload-1[file][file_path]' parameter. This makes it possible for unauthenticated attackers to read the contents of arbitrary files on the server, which can contain sensitive information. Successful exploitation requires a publicly accessible form with a File Upload field where Save and Continue is enabled in that form's Behavior settings and the Save and Continue email notification is configured to attach uploaded files in Email Notifications.

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, and no interaction from a victim user. A successful exploit has high impact on confidentiality.

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Forminator Forms <= 1.52.1 carries this weakness at upload-1[file][file_path], and reaching it takes no account at all. Path traversal happens when user-controlled text is used to build a filesystem path without being constrained to an intended directory, so sequences like ../ walk the resolved path somewhere else.

Depending on the operation, it means reading files outside the intended folder — wp-config.php being the usual target — or writing to and deleting paths the web server can touch. For Forminator Forms the fix is 1.52.2: builds <= 1.52.1 are affected, anything from 1.52.2 onward is not.

Remediation

Update to version 1.52.2, or a newer patched version

How does WordSec protect against this?

Requests carrying this pattern arrive without a session, so nothing upstream of the firewall gets a chance to reject them: WordSec's web application firewall inspects request payloads before WordPress loads them. None of that substitutes for the fix: Forminator Forms 1.52.2 closes this, and updating the plugin is the step that ends it.

  • Firewall
  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-5192https://www.wordfence.com/threat-intel/vulnerabilities/id/788422c4-e070-48aa-a85d-a5d5a25a6a1dhttps://nvd.nist.gov/vuln/detail/CVE-2026-5192

Related records

Vulnerability data © Defiant, Inc., provided under the Wordfence Intelligence T&C