Vulnerabilities / Events Manager – Calendar, Bookings, Tickets, Appointments and more! / WPSEC-2026-2639
Events Manager – Calendar, Bookings, Tickets, Appointments and more! <= 7.4.12 - Authenticated (Contributor+) Insecure Direct Object Reference to Ticket Overwrite via Event Save
Medium 4.3
CWE-639Fixed in 7.4.13
- ID
- WPSEC-2026-2639
- Plugin
- Events Manager – Calendar, Bookings, Tickets, Appointments and more! (events-manager)
- Affected
- all versions before 7.4.13
- Remediation
- Update to 7.4.13 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- Weakness
- CWE-639
- Usage
- Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-11-06
- Attack surface
- Events Manager – Calendar, Bookings, Tickets, Appointments and more! on WPSec AttackSurface
- Fix released
- Published
Description
The Events Manager plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'em_tickets' ticket data submitted when saving an event in all versions up to, and including, 7.4.12. This is due to EM_Tickets::get_post() keeping the request-supplied 'ticket_id' on a new EM_Ticket when that ID does not belong to the event being saved. EM_Ticket::save() then updates that ticket row and moves it to the attacker's event. This makes it possible for authenticated attackers, with Contributor-level access and above, to overwrite and take over tickets that belong to other users' events.
References
- https://wpsec.com/vuln/WPSEC-2026-2639/
- https://plugins.svn.wordpress.org/events-manager/tags/7.4.13/
- https://wordpress.org/plugins/events-manager/
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