Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) <= 4.1.8 - Missing Authorization

5.3
Missing Authorization
CVE CVE-2026-40776
CVSS 5.3 (Medium)
Publicly Published April 29, 2026
Last Updated May 4, 2026
Researcher Lorenzo Fradeani

Description

The Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) plugin for WordPress is vulnerable to unauthorized access due to a missing capability check on a function in versions up to, and including, 4.1.8. This makes it possible for unauthenticated attackers to perform an unauthorized action.

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Vulnerability Details for Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce

Software Type Plugin
Software Slug wp-event-solution (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.1.9, or a newer patched version
Affected Version
  • <= 4.1.8
Patched Version
  • 4.1.9

Recent vulnerabilities in Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce

# Title CVE ID CVSS Researchers Date
1 Eventin <= 4.1.15 - Authenticated (Contributor+) Stored Cross-Site Scripting via 'etn_faq_content' Parameter CVE-2026-12924 6.4 Wordfence PRISM July 9, 2026
2 Eventin 4.0.26 - 4.1.15 - Missing Authorization to Unauthenticated Payment Bypass via REST API CVE-2026-13039 5.3 Niv Kochan July 9, 2026
3 Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) <= 4.1.12 - Missing Authorization CVE-2025-68045 5.3 l3m3s June 15, 2026
4 Eventin – Events Calendar, Event Booking, Ticket & Registration (AI Powered) <= 4.1.8 Missing Authorization to Authenticated (Subscriber+) Order Information Exposure CVE-2026-4109 4.3 Supakiad S. (m3ez) April 13, 2026
5 Eventin <= 4.1.3 - Authenticated (Contributor+) PHP Object Injection CVE-2025-68047 7.5 w41bu1 January 22, 2026
6 Eventin – Event Manager, Event Booking, Calendar, Tickets and Registration Plugin (AI Powered) <= 4.0.51 - Missing Authorization to Unauthenticated Stored Cross-Site Scripting via 'post_settings' CVE-2025-14657 7.2 Sarawut Poolkhet (MisterHelloz) January 8, 2026
7 Event Manager, Events Calendar, Booking, Registrations and Tickets – Eventin <= 4.0.37 - Unauthenticated Server-Side Request Forgery CVE-2025-7813 7.2 Gai Tanaka (63n0) August 22, 2025
8 Eventin <= 4.0.31 - Authenticated (Contributor+) PHP Object Injection CVE-2025-49869 7.5 Nguyen Ngoc Quang Bach (maysbachs) August 13, 2025
9 Eventin <= 4.0.34 - Authenticated (Contributor+) Privilege Escalation via User Email Change/Account Takeover CVE-2025-4796 8.8 István Márton August 8, 2025
10 Eventin <= 4.0.28 - Reflected Cross-Site Scripting CVE-2025-49321 6.1 Nguyen Ngoc Quang Bach (maysbachs) June 23, 2025

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