Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce < 4.1.16 - Unauthenticated Payment Bypass

5.3
Missing Authorization
CVE CVE-2026-13178
CVSS 5.3 (Medium)
Publicly Published August 4, 2026
Last Updated August 14, 2026
Researcher Haitam Lazaar

Description

The Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce plugin for WordPress is vulnerable to Payment Bypass in all versions up to 4.1.16 (exclusive). This makes it possible for unauthenticated attackers to bypass payments by manipulating order statuses.

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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 4.1.16, or a newer patched version
Affected Version
  • < 4.1.16
Patched Version
  • 4.1.16

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

# Title CVE ID CVSS Researchers Date
1 Eventin – Event Calendar, Event Registration, Tickets & Booking (AI Powered) <= 4.1.22 - Authenticated (Subscriber+) Missing Authorization to Order Completion / Free Ticket Redemption CVE-2026-15398 4.3 Wordfence PRISM September 8, 2026
2 Eventin <= 4.1.17 - Missing Authorization to Authenticated (Subscriber+) Notification Flow Management via notification-flow REST API Endpoint CVE-2026-11821 5.4 Sushi Com Abacate September 8, 2026
3 Eventin <= 4.1.22 - Authenticated (Contirbutor+) Local File Inclusion via 'event_layout' Parameter CVE-2026-15667 7.5 Wordfence PRISM September 8, 2026
4 Eventin <= 4.1.22 - Authenticated (Custom+) Local File Inclusion via 'event_layout' Parameter CVE-2026-15406 7.5 Wordfence PRISM September 8, 2026
5 Eventin <= 4.1.22 - Missing Authorization to Unauthenticated Arbitrary Order Creation and Status Manipulation via 'status' Parameter CVE-2026-12956 5.3 Wordfence PRISM September 8, 2026
6 Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce < 4.1.21 - Authenticated (Contributor+) Path Traversal CVE-2026-84898 6.5 Sai Praneeth Koti September 5, 2026
7 Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce < 4.1.22 - Missing Authorization CVE-2026-84901 4.3 Sai Praneeth Koti September 5, 2026
8 Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.22 - Missing Authorization CVE-2026-82223 5.3 20kilograma September 1, 2026
9 Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce < 4.1.22 - Unauthenticated Information Exposure CVE-2026-13172 5.3 Meher Sudhakar Abbireddi August 26, 2026
10 Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce < 4.1.21 - Authenticated (Contributor+) Server-Side Request Forgery CVE-2026-13176 6.4 Yaswanth Reddy Sunkara August 24, 2026

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