CVE-2023-0721

Metform Elementor Contact Form Builder <= 3.3.0 - Unauthenticated CSV Injection

2023-06-08 00:00

Strategic Overview

Status: Patched in 3.3.1
Affected Plugin: MetForm – Contact Form, Survey, Quiz, Conditional Forms, Form Templates & Custom Form Builder for Elementor
Affected Version: <= 3.3.0
CVSS: 8.3High
Weakness type: CWE-1236 · Improper Neutralization of Formula Elements in a CSV File
CVE: CVE-2023-0721

View all MetForm – Contact Form, Survey, Quiz, Conditional Forms, Form Templates & Custom Form Builder for Elementor vulnerabilities

At a glance

CVE-2023-0721 is a high-severity Improper Neutralization of Formula Elements in a CSV File vulnerability in the MetForm WordPress plugin, affecting versions <= 3.3.0. It carries a CVSS score of 8.3 (reachable over the network; high confidentiality, integrity, availability impact). Exploitation requires no authentication. The issue is fixed in version 3.3.1; sites on affected versions should update now. Disclosed June 2023, reported by Ram.

Vulnerability Overview

The Metform Elementor Contact Form Builder plugin for WordPress is vulnerable to CSV injection in versions up to, and including, 3.3.0. This allows unauthenticated attackers to embed untrusted input into exported CSV files, which can result in code execution when these files are downloaded and opened on a local system with a vulnerable configuration.

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no privileges on the target site. A successful exploit has high impact on confidentiality, integrity, availability — full site compromise territory.

CWE-1236: Improper Neutralization of Formula Elements in a CSV File

The product saves user-provided information into a Comma-Separated Value (CSV) file, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as a command when the file is opened by a spreadsheet product.

Remediation

Update to version 3.3.1, 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: MetForm 3.3.1 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-2023-0721 https://www.wordfence.com/threat-intel/vulnerabilities/id/ccd85a72-1872-4c4f-8ba7-7f91b0b37d4a https://nvd.nist.gov/vuln/detail/CVE-2023-0721

Related records

Other vulnerabilities in MetForm – Contact Form, Survey, Quiz, Conditional Forms, Form Templates & Custom Form Builder for Elementor

CVSS Vector

8.3

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionRequired
ScopeChanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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