CVE-2026-108123 Missing authorization in WP Booking System – Booking Calendar
Unauthenticated attackers can read sensitive customer PII from booking notification emails due to missing authorization checks in the WP Booking System plugin.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-108123?
CVE-2026-108123 is a high-severity missing authorization vulnerability in murgroland WP Booking System – Booking Calendar, published on 17 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-862
Which versions are affected by CVE-2026-108123?
How do I fix CVE-2026-108123?
No fix has been published for CVE-2026-108123 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-108123 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-108123 exists.
Public exploit code: 1 Nuclei template.
Sources
Also known as GHSA-2wvw-mp72-5fwj.