CVE-2026-13171

Deferred Deferred - Pending Action

Unauthenticated User Account Creation in Eventin WordPress Plugin

Publication date: 2026-08-12

Last updated on: 2026-08-26

Assigner: WPScan

Description

The Eventin WordPress plugin before 4.1.20 does not perform an authorization check on its waiting-list registration handler, allowing unauthenticated users to create WordPress user accounts for arbitrary email addresses and inject order records.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-12

Last Modified

2026-08-26

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-31

NVD

CVE-2026-13171

EUVD

EUVD-2026-57074

Affected Vendors & Products

Vendor	Product	Version / Range
eventin	eventin_wordpress_plugin	to 4.1.20 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-284	The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

Attack-Flow Graph

Executive Summary

The Eventin WordPress plugin before version 4.1.20 has a vulnerability where unauthenticated users can create WordPress user accounts for arbitrary email addresses by exploiting the waiting-list registration endpoint. This happens because the plugin does not perform proper authorization checks, allowing attackers to inject order records without validation.

Detection Guidance

Check if your Eventin WordPress plugin version is below 4.1.20. Look for unauthorized user accounts or unexpected order records in WordPress admin panels.

Impact Analysis

Attackers could exploit this to create unauthorized user accounts, potentially leading to unauthorized access to the WordPress site. They might also inject fake order records, which could disrupt site operations or be used for further attacks.

Compliance Impact

This vulnerability could lead to unauthorized user account creation, potentially violating data protection requirements under GDPR or HIPAA. Unauthorized access may result in unauthorized data exposure or processing, which could breach compliance.

Mitigation Strategies

Update the Eventin plugin to version 4.1.20 or later immediately. Review WordPress user accounts and order records for unauthorized entries.

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