Eventin <= 4.1.20 - Authenticated (Contributor+) Insecure Direct Object Reference to Speaker Account Deletion

4.3
Authorization Bypass Through User-Controlled Key
CVE CVE-2026-13174
CVSS 4.3 (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 preferring the `ids` body parameter over the URL path `id`, allowing the check to pass against the attacker's own account while the deletion executed against the victim's account in the path. This makes it possible for authenticated attackers, with contributor-level access and above, to delete arbitrary speaker or organizer user accounts by supplying their own user ID in the request body `ids` parameter while targeting a victim's account ID in the URL path.

References

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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 – 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
2 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
3 Eventin <= 4.1.23 - Missing Authorization CVE-2026-84907 5.3 Karthik Ramakrishnan September 14, 2026
4 Eventin <= 4.1.23 - Unauthenticated Payment Bypass CVE-2026-84906 5.3 cyberkareem September 14, 2026
5 Eventin <= 4.1.23 - Missing Authorization CVE-2026-84905 4.3 Karthik Ramakrishnan September 14, 2026
6 Eventin <= 4.1.23 - Missing Authorization CVE-2026-77702 5.3 Nir Yehoshua September 14, 2026
7 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
8 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
9 Eventin <= 4.1.22 - Authenticated (Contirbutor+) Local File Inclusion via 'event_layout' Parameter CVE-2026-15667 7.5 Wordfence PRISM September 8, 2026
10 Eventin <= 4.1.22 - Authenticated (Custom+) Local File Inclusion via 'event_layout' Parameter CVE-2026-15406 7.5 Wordfence PRISM September 8, 2026

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