---
id: "CVE-2026-108123"
kind: "vulnerability"
aliases: ["CVE-2026-108123"]
title: "WP Booking System plugin: authorization bypass exposes customer booking emails"
severity: "high"
cvss: 7.5
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["booking-calendar", "package", "pii", "wordpress", "wordpress-plugin"]
not_affected_if: ["plugin-not-installed"]
published_at: "2026-10-17T04:16:48+00:00"
first_seen_at: "2026-10-23T21:57:14+00:00"
updated_at: "2026-10-25T03:24:47+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-108123", "first_seen_at": "2026-10-23T21:57:14+00:00"}]
---

# WP Booking System plugin: authorization bypass exposes customer booking emails

The WP Booking System – Booking Calendar WordPress plugin, in all versions up to and including 2.1.0.3, does not check whether a user is allowed to read notification email logs. An unauthenticated attacker can iterate booking_id and email_log_id values to read customer names, email addresses, phone numbers, messages and booking dates.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Look at the installed version of the WP Booking System – Booking Calendar plugin in the WordPress admin plugins list and compare it with `2.1.0.3`
- unknown for any other check, as the sources do not give one

## Fix

- Update the WP Booking System – Booking Calendar plugin to a version later than `2.1.0.3`; the sources do not name the fixed version
- unknown for further action, as the sources do not say

## Timeline

- 2026-10-23T21:57:14+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-108123

## From the sources

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.

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