CVE-2026-108123

7.5High

Published 17 Oct 2026 · NVD status: Received · AI triage by gemini-3.8-flash

7.5High

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None
Impact: High impact on confidentiality
Weakness: CWE-862

Impact

Attackers can read stored notification emails for any booking by iterating IDs, exposing customer PII such as names, emails, phone numbers, and booking dates. The vulnerability requires network access to the WordPress site, targeting exposed admin endpoints accessible to low-privilege users or unauthenticated attackers.

Root cause

The plugin fails to verify user authorization checks inside admin_init hooks triggered on accessible administrative pages.

Affected systems

WP Booking System – Booking Calendar plugin for WordPress versions up to and including 2.1.0.3

CVSS v3.1 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Fix & remediation

Upgrade the WP Booking System plugin to a version newer than 2.1.0.3, or deactivate the plugin immediately if an update cannot be applied.

shell

$ wp plugin update wp-booking-system

AI-suggested. Run it in staging first and check it against the vendor advisory. Why?

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NVD 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.

References

Source: nvd.nist.gov/vuln/detail/CVE-2026-108123