CVE-2026-108123

The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to authorization bypass…

Risk score: 55/100
CVSS: 7.5 v3.1
Exploit chance (30 days): 0.3%
Published: 17 Oct 2026

Open in the live forecast Today's forecast

What to know

What it is: The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.1.0.3 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to read the stored noti…
Affected: See advisory
Fix: Apply the vendor's security update; see the linked advisory.
Exploitation: No known exploitation

Why it is Yellow

CVSS 7.5 high
Remotely exploitable without logging in

References

Original description

The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.1.0.3 This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for unauthenticated attackers to read the stored notification email body of any booking by iterating booking_id and email_log_id, exposing customer PII including names, email addresses, phone numbers, messages, and booking dates intended to be visible only to administrators. This is exploitable by any Subscriber-level user because admin_init fires on profile.php, a wp-admin page accessible to all authenticated users.

Last activity 17 Oct 2026. Patch Forecast updates every hour.