---
id: CVE-2026-104012
title: >-
  Rox Appointment Booking <= 1.3.1 - Unauthenticated Privilege Escalation via
  Mass Assignment to Mass Assignment via '/public/booking' Endpoint
summary: >-
  The Rox Appointment Booking – Appointment Booking Scheduling Solution plugin
  for WordPress is vulnerable to Privilege Escalation via Mass Assignment in all
  versions up to, and including, 1.3.1 This is due to the public
  `/rox-appointment-…
severity: high
cvss: 8.8
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H'
cvssSource: cna
cwe:
  - CWE-269
vendor: roxnor
product: 'Rox Appointment Booking – Event, Calendar & Appointment Scheduling'
affected:
  - rox_appointment_booking_event_calendar_appointment_scheduling <= 1.3.1
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-11-02T14:50:55.700006Z'
published: '2026-10-31'
updated: '2026-11-02'
sourceUpdated: '2026-11-02T14:51:04.867Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-104012'
references:
  - url: >-
      https://www.wordfence.com/threat-intel/vulnerabilities/id/2a32f428-fa6e-469b-b004-e80a1029af80?source=cve
  - url: >-
      https://plugins.trac.wordpress.org/browser/rox-appointment-booking/tags/1.3.0/src/Modules/Customer/REST/SaveCustomer.php#L262
  - url: >-
      https://plugins.trac.wordpress.org/browser/rox-appointment-booking/tags/1.3.0/src/Modules/FrontendBookingPanel/Services/CustomerService.php#L74
  - url: >-
      https://plugins.trac.wordpress.org/browser/rox-appointment-booking/tags/1.3.0/src/Modules/Customer/Data/CustomerModel.php#L38
  - url: >-
      https://plugins.trac.wordpress.org/browser/rox-appointment-booking/tags/1.3.0/src/Modules/FrontendBookingPanel/REST/BookingConfirm.php#L61
  - url: 'https://downloads.wordpress.org/plugin/rox-appointment-booking.1.3.2.zip'
tags:
  - cve.org
epss: 0.00281
epssPercentile: 0.2072
ingestedAt: '2026-11-05T19:30:42.673Z'
---

## Overview

The Rox Appointment Booking – Appointment Booking Scheduling Solution plugin for WordPress is vulnerable to Privilege Escalation via Mass Assignment in all versions up to, and including, 1.3.1 This is due to the public `/rox-appointment-booking/v1/public/booking` REST endpoint performing mass-assignment of the raw request body into a new customer row while `CustomerModel::$fillable` includes the internal `wp_user_id` column, allowing an unauthenticated attacker to persist an arbitrary WordPress user ID alongside an attacker-controlled email address with no authorization check. When an administrator subsequently opens the poisoned customer record and clicks Update Customer, `SaveCustomer::handleRequest()` passes the stored `wp_user_id` and attacker-supplied email to `wp_update_user()` — succeeding because `LinkedAccount::canChange()` unconditionally returns true when the acting user holds the `edit_users` capability — thereby overwriting the targeted administrator's email address and enabling full account takeover via a standard WordPress password-reset request. Successful exploitation requires an administrator to open and save the poisoned record, and the attacker must know or guess a valid administrator user ID (such as the default user ID 1).

## Affected

- `rox_appointment_booking_event_calendar_appointment_scheduling <= 1.3.1`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.