Events Manager – Calendar, Bookings, Tickets, Appointments and more! <= 7.4.12 - Unauthenticated Insecure Direct Object Reference to Booking Withdrawal Declaration
- ID
- WPSEC-2026-2635
- Plugin
- Events Manager – Calendar, Bookings, Tickets, Appointments and more! (events-manager)
- Affected
- from 7.3.6 before 7.4.13
- Remediation
- Update to 7.4.13 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:H/PR:N/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 right-of-withdrawal form ([em_withdrawal_form]) lookup, select and confirm steps in versions 7.3.6 up to, and including, 7.4.12. This is due to the plugin accepting a sequential booking ID as the booking reference and trusting the booking ID and email address posted in form fields, instead of requiring the unguessable booking UUID or a verified emailed link. This makes it possible for unauthenticated attackers who know a booking's email address to file withdrawal declarations on other users' bookings, when the withdrawal feature is enabled.
References
- https://wpsec.com/vuln/WPSEC-2026-2635/
- https://plugins.svn.wordpress.org/events-manager/tags/7.4.13/
- https://wordpress.org/plugins/events-manager/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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