Formidable Forms <= 6.0.1 - IP Spoofing via HTTP header

2023-03-06 00:00

Daniel Ruf

Strategic Overview

Status

Patched in 6.1

Affected PluginFormidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More

Affected Version<= 6.0.1

CVSS5.3Medium

CVECVE-2023-0816

View all Formidable Forms – WordPress Form Builder for Contact Forms, Calculators, Quizzes & More vulnerabilities

Vulnerability Overview

The Formidable Forms plugin for WordPress is vulnerable to IP Spoofing in versions up to, and including, 6.0.1 due to a reliance on various untrusted headers (e.g., 'Client-Ip', 'CF-CONNECTING-IP', etc.) to retrieve the IP address of a client performing a form submission. This makes it possible for unauthenticated users to bypass the plugin's anti-spam protections.

Technical Analysis

REMEDIATION: Update to version 6.1, or a newer patched version --- IDENTIFIER: CWE-807 (Reliance on Untrusted Inputs in a Security Decision) The product uses a protection mechanism that relies on the existence or values of an input, but the input can be modified by an untrusted actor in a way that bypasses the protection mechanism.

External References

https://www.cve.org/CVERecord?id=CVE-2023-0816 https://www.wordfence.com/threat-intel/vulnerabilities/id/909b5421-210d-427a-94a0-e1ea25880cec

CVSS Vector

5.3

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

Base

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityNone
IntegrityLow
AvailabilityNone

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