CVE-2017-20194

Formidable Form Builder < 2.05.03 - Unauthenticated Information Disclosure

2017-11-12 00:00
Jouko Pynnöne

Strategic Overview

Status
Patched in 2.05.03
Affected Plugin
Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More
Affected Version
< 2.05.03
CVSS
5.3Medium
Weakness type
CWE-200 · Exposure of Sensitive Information to an Unauthorized Actor
CVE
CVE-2017-20194
View all Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More vulnerabilities

At a glance

CVE-2017-20194 is a medium-severity Exposure of Sensitive Information to an Unauthorized Actor vulnerability in the Formidable Forms WordPress plugin, affecting versions < 2.05.03. It carries a CVSS score of 5.3 (reachable over the network; low attack complexity). Exploitation requires no authentication. The issue is fixed in version 2.05.03; sites on affected versions should update now. Disclosed November 2017, reported by Jouko Pynnöne.

Vulnerability Overview

The Formidable Form Builder plugin for WordPress is vulnerable to Sensitive Data Exposure in versions up to, and including, 2.05.03 via the frm_forms_preview AJAX action. This makes it possible for unauthenticated attackers to export all of the form entries for a given form.

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.

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Reaching this weakness in Formidable Forms < 2.05.03 takes no account at all. Sensitive information exposure means data the application intended to keep internal is returned to a caller who should not be able to see it.

The disclosed data — credentials, tokens, customer records or internal paths — is usually worth more as material for a follow-up attack than as an end in itself. For Formidable Forms the fix is 2.05.03: builds < 2.05.03 are affected, anything from 2.05.03 onward is not.

Remediation

Update to version 2.05.03, or a newer patched version

How does WordSec protect against this?

This one needs no account at all, which puts it outside what login hardening can reach; WordSec's login security narrows the account-level paths around it, and the firewall is what inspects the request itself. None of that substitutes for the fix: Formidable Forms 2.05.03 closes this, and updating the plugin is the step that ends it.

  • Login Security
  • Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2017-20194https://www.wordfence.com/threat-intel/vulnerabilities/id/c7600fe1-94e4-4e3e-a9a6-ff3589813715https://nvd.nist.gov/vuln/detail/CVE-2017-20194

Related records

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