Events Manager guest bookings can expose database secrets
Events Manager before 7.3.7 stores attacker-controlled registration data as booking metadata when No-User-Account Booking Mode is enabled, then deserializes it without restricting object classes. An unauthenticated booking can trigger a PHP object-injection gadget chain when later loaded, enabling database reads that may expose password hashes and secret keys.
- Component
- Events Manager
- Plugin slug
events-manager- Affected
- < 7.3.7
- Safe version
7.3.7- Published
- Jul 22, 2026
This CVE was published Jul 22, 2026 and is one of 32 known issues for this plugin.
Update, patch or deactivate.
Update Events Manager to 7.3.7 or later. Until patched, disable No-User-Account Booking Mode. Review guest bookings created while a vulnerable version was active and rotate credentials or secret keys if database data may have been exposed.
A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.
Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.
Technical description
The Events Manager WordPress plugin before 7.3.7 does not safely handle booking-registration data on sites using No-User-Account Booking Mode: a booker-supplied registration field is stored as booking meta and later deserialized without restricting allowed classes, enabling PHP object injection. The resulting gadget chain reaches a database query that is built without parameterisation, so an unauthenticated attacker can read arbitrary database data (e.g. user password hashes, secret keys) when the booking is later loaded.
CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N