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Medium

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

  • Disclosed: 17.08.2026
  • Updated: 11.10.2026 10:22

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.

Affected software

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PlatformPackageVulnerable versionsFixed in
WordPress plugin Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.20 4.1.21

References

CVSS score 4.3/10
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness (CWE)
CWE-639
Platform
WordPress
Package
Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce
Disclosed
17.08.2026
Updated
11.10.2026 10:22

Sources and licenses

Wordfence Intelligence - a2e2bd61-3187-4992-a3ae-1b5d88d1b90f - Wordfence Intelligence

Copyright 1999-2026 The MITRE Corporation

Copyright 2012-2026 Defiant Inc.

This record contains material that is subject to copyright

Copyright 1999-2026 The MITRE Corporation

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Copyright 2012-2026 Defiant Inc.

Defiant hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute this software vulnerability information. Any copy of the software vulnerability information you make for such purposes is authorized provided that you include a hyperlink to this vulnerability record and reproduce Defiant's copyright designation and this license in any such copy.

https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/
Wordfence Intelligence
Wordfence Intelligence - Defiant, Inc.
Copyright Defiant, Inc. All rights reserved except as granted below.
License grant, section 3.1 of the Wordfence Intelligence Terms and Conditions (January 26, 2026):

Subject to this Agreement, Company hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute the Service. Any copy you make for such purposes is authorized provided that you reproduce Company’s copyright designation, this license, and the license of any disclosed Company licensor in any such copy.

Full applicable Agreement: https://www.wordfence.com/wordfence-intelligence-terms-and-conditions/

Vulnerability history: Eventin – Events Calendar, Tickets, Registration, Booking & WooCommerce

All published vulnerabilities of this package (WordPress plugin), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (55) in the archive
Total entries
55
First → latest
02.2024 10.2026
Without a fix
0
Exploited in attacks
0

Severity breakdown

  • Critical 1
  • High 14
  • Medium 40

Disclosures per year

Severity:
  1. Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.23 - Authenticated (Subscriber+) Privilege Escalation via map_meta_cap Filter
    High · 7.5 CVE-2026-75983 <= 4.1.23 4.1.24
  2. Eventin <= 4.1.22 - Authenticated (Contirbutor+) Local File Inclusion via 'event_layout' Parameter
    High · 7.5 CVE-2026-15667 <= 4.1.22 4.1.23
  3. Eventin <= 4.1.22 - Authenticated (Custom+) Local File Inclusion via 'event_layout' Parameter
    High · 7.5 CVE-2026-15406 <= 4.1.22 4.1.23
  4. Eventin <= 4.1.20 - Authenticated (Contributor+) Insecure Direct Object Reference to Speaker Account Deletion this entry
    Medium · 4.3 CVE-2026-13174 <= 4.1.20 4.1.21
  5. Eventin <= 4.1.3 - Authenticated (Contributor+) PHP Object Injection
    High · 7.5 CVE-2025-68047 <= 4.1.3 4.1.4
  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'
    High · 7.2 CVE-2025-14657 <= 4.0.51 4.0.52
  7. Event Manager, Events Calendar, Booking, Registrations and Tickets – Eventin <= 4.0.37 - Unauthenticated Server-Side Request Forgery
    High · 7.2 CVE-2025-7813 <= 4.0.37 4.0.38
  8. Eventin <= 4.0.31 - Authenticated (Contributor+) PHP Object Injection
    High · 7.5 CVE-2025-49869 <= 4.0.31 4.0.32
  9. Eventin <= 4.0.34 - Authenticated (Contributor+) Privilege Escalation via User Email Change/Account Takeover
    High · 8.8 CVE-2025-4796 <= 4.0.34 4.0.35
  10. Event Manager, Events Calendar, Tickets, Registrations – Eventin <= 4.0.26 - Unauthenticated Arbitrary File Read
    High · 7.5 CVE-2025-3419 <= 4.0.26 4.0.27
  11. Eventin <= 4.0.26 - Missing Authorization to Unauthenticated Privilege Escalation
    Critical · 9.8 CVE-2025-47539 <= 4.0.26 4.0.27
  12. Eventin <= 4.0.25 - Authenticated (Contributor+) Local File Inclusion
    High · 8.8 CVE-2025-39584 <= 4.0.25 4.0.26
  13. Event Manager, Events Calendar, Tickets, Registrations – Eventin <= 4.0.24 - Authenticated (Contributor+) Local File Inclusion
    High · 8.8 CVE-2025-1770 <= 4.0.24 4.0.25
  14. Eventin <= 4.0.20 - Authenticated (Contributor+) Local File Inclusion
    High · 8.8 CVE-2025-26964 <= 4.0.20 4.0.21
  15. Eventin <= 4.0.7 - Authenticated (Contributor+) Local File Inclusion
    High · 8.8 CVE-2024-56213 <= 4.0.7 4.0.9
  16. Event Manager, Events Calendar, Tickets, Registrations – Eventin <= 4.0.8 - Authenticated (Contributor+) Local File Inclusion
    High · 8.8 CVE-2024-7149 <= 4.0.8 4.0.9

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