Eventin <= 4.1.20 - Insecure Direct Object Reference to Authenticated (Contributor+) Schedule Deletion and Modification

6.3
Authorization Bypass Through User-Controlled Key
CVE CVE-2026-13175
CVSS 6.3 (Medium)
Publicly Published August 17, 2026
Last Updated August 20, 2026
Researcher Muni Nitish Kumar Yaddala

Description

The Eventin plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 4.1.20. This is due to the permission check reading the subject ID from the request body parameter `ids` while the handler read it from the URL parameter `id`, allowing an attacker to authorize against their own schedule and execute against a victim's. This makes it possible for authenticated attackers, with contributor-level access and above, to delete or modify schedules belonging to other users by supplying a victim's schedule ID in the URL path while carrying their own schedule ID in the request body to pass the ownership check.

References

Share

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

Software Type Plugin
Software Slug wp-event-solution (view on wordpress.org)
Patched? Yes
Remediation Update to version 4.1.21, or a newer patched version
Affected Version
  • <= 4.1.20
Patched Version
  • 4.1.21

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

# Title CVE ID CVSS Researchers Date
1 Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.25 - Missing Authorization CVE-2026-109898 5.3 Charles Vosburgh October 13, 2026
2 Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.25 - Missing Authorization CVE-2026-97300 5.3 Ratchanon Chamnankit October 5, 2026
3 Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.25 - Missing Authorization CVE-2026-103684 5.3 Peter Tang October 5, 2026
4 Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.25 - Unauthenticated Information Exposure CVE-2026-105073 5.3 Peter Tang October 5, 2026
5 Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.23 - Authenticated (Subscriber+) Privilege Escalation via map_meta_cap Filter CVE-2026-75983 7.5 Wordfence PRISM September 14, 2026
6 Eventin <= 4.1.23 - Authenticated (Custom+) Stored Cross-Site Scripting via 'etn_shedule_objective' schedule_slot Parameter CVE-2026-15402 6.4 Wordfence PRISM September 14, 2026
7 Eventin <= 4.1.23 - Unauthenticated Payment Bypass CVE-2026-84906 5.3 cyberkareem September 14, 2026
8 Eventin <= 4.1.23 - Missing Authorization CVE-2026-77702 5.3 Nir Yehoshua September 14, 2026
9 Eventin <= 4.1.23 - Missing Authorization CVE-2026-84905 4.3 Karthik Ramakrishnan September 14, 2026
10 Eventin <= 4.1.23 - Missing Authorization CVE-2026-84907 5.3 Karthik Ramakrishnan September 14, 2026

Did you know Wordfence Intelligence provides free personal and commercial API access to our comprehensive WordPress vulnerability database, along with a free webhook integration to stay on top of the latest vulnerabilities added and updated in the database? Get started today!

Learn more

Want to get notified of the latest vulnerabilities that may affect your WordPress site?
Install Wordfence on your site today to get notified immediately if your site is affected by a vulnerability that has been added to our database.

Get Wordfence

The Wordfence Intelligence WordPress vulnerability database is completely free to access and query via API. Please review the documentation on how to access and consume the vulnerability data via API.

Documentation