Events Manager – Calendar, Bookings, Tickets, Appointments and more! <= 7.4.10 - Authenticated (Contributor+) Insecure Direct Object Reference to Booking Takeover

Medium 5.4 CWE-639Fixed in 7.4.11
ID
WPSEC-2026-1659
Plugin
Events Manager – Calendar, Bookings, Tickets, Appointments and more! (events-manager)
Affected
all versions before 7.4.11
Remediation
Update to 7.4.11 or later.
CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-639
Usage
Plugin Medium · Affected versions Medium among sites WPSec scans, 2026-10-26
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 booking_add action in all versions up to, and including, 7.4.10. This is due to the handler loading an existing booking from the user-supplied booking_id and then letting EM_Booking::get_post() reassign it to the event_id in the request, while the only authorization check, in EM_Booking::save(), is made against that new event. This makes it possible for authenticated attackers with contributor-level access and above who own a published event to move another user's booking onto their own event and then view the booker's personal details.

References

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