CVE-2026-109368

MediumCVSS 6.5

Published: 17/10/2026(UTC)Updated: 19/10/2026(UTC)Translated: 17/10/2026(UTC)NVD NIST

Exploitation Probability (EPSS)

Low risk

0.26%

17th percentile - higher than 17% of all known CVEs

Summary

The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 2.1.0.3 via the 'id' parameter. This makes it possible for authenticated attackers, with subscriber-level access and above, to extract private per-event booking descriptions and booking IDs from any calendar managed by the site.

Risk Assessment

An attacker with a basic account can access private booking data, potentially compromising customer and booking information confidentiality.

Recommendation

Update the WP Booking System plugin to a version newer than 2.1.0.3 that fixes this vulnerability. If updating is not possible, restrict access to calendars and monitor for unusual requests with the 'id' parameter.

Other vulnerabilities in WP Booking System – Booking Calendar

CVE-2026-107712Medium
The WP Booking System – Booking Calendar plugin for WordPress is vulnerable to time-based SQL Injection via the 'current_month' parameter in all versions up to and including 2.1.0.1 due to insufficient escaping on the user supplied parameter and lack of sufficient preparation on the existing SQL query. This allows authenticated attackers with subscriber-level access and above to append additional SQL queries into already existing queries that can be used to extract sensitive information from the database. This is a regression vulnerability — a capability check introduced in versions 2.0.19.11–2.0.19.14 to address CVE-2024-50425 was removed in version 2.1, meaning any authenticated subscriber-level account can reach the vulnerable handler with no nonce validation required.

Original NVD description (English source)

Vulnerability data from NVD (NIST) · CISA KEV · EPSS