CVE-2026-0633

MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor <= 4.1.0 - Unauthenticated Form Submission Exposure via Forgeable Cookie Value

2026-01-23 19:35

Strategic Overview

Status: Patched in 4.1.1
Affected Plugin: MetForm – Contact Form, Survey, Quiz, Conditional Forms, Form Templates & Custom Form Builder for Elementor
Affected Version: <= 4.1.0
CVSS: 3.7Low
Weakness type: CWE-287 · Improper Authentication
CVE: CVE-2026-0633

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

At a glance

CVE-2026-0633 is a low-severity Improper Authentication vulnerability in the MetForm WordPress plugin, affecting versions <= 4.1.0. It carries a CVSS score of 3.7 (reachable over the network). Exploitation requires no authentication. The issue is fixed in version 4.1.1; sites on affected versions should update now. Disclosed January 2026, reported by type5afe.

Vulnerability Overview

The MetForm – Contact Form, Survey, Quiz, & Custom Form Builder for Elementor plugin for WordPress is vulnerable to Sensitive Information Exposure in versions up to, and including, 4.1.0. This is due to the use of a forgeable cookie value derived only from the entry ID and current user ID without a server-side secret. This makes it possible for unauthenticated attackers to access form submission entry data via MetForm shortcodes for entries created within the transient TTL (default is 15 minutes).

Technical Analysis

The vector marks this flaw as remotely reachable over the network, and no privileges on the target site, and no interaction from a victim user.

CWE-287: Improper Authentication

Reaching this weakness in MetForm <= 4.1.0 takes no account at all. Improper authentication means the mechanism that proves who a caller is can be satisfied without the secret it was supposed to require.

An attacker authenticates as another user — administrators included — without ever knowing a password, so password policies and login rate limits never come into play. For MetForm the fix is 4.1.1: builds <= 4.1.0 are affected, anything from 4.1.1 onward is not.

Remediation

Update to version 4.1.1, 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: MetForm 4.1.1 closes this, and updating the plugin is the step that ends it.

Login Security
Alerts

External References

https://www.cve.org/CVERecord?id=CVE-2026-0633 https://www.wordfence.com/threat-intel/vulnerabilities/id/d72cc420-1ff5-403b-b4ea-7c820fdebcf3 https://nvd.nist.gov/vuln/detail/CVE-2026-0633

Related records

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

CVSS Vector

3.7

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

Base

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
ConfidentialityLow
IntegrityNone
AvailabilityNone

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