---
id: "CVE-2026-105257"
kind: "vulnerability"
aliases: ["CVE-2026-105257"]
title: "Appointment Booking WordPress plugin: agents can read every customer's record"
severity: "low"
cvss: 2.7
epss: 0.00227
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["appointment-booking-plugin", "package", "self-hosted", "wordpress"]
not_affected_if: ["no-agent-role-users", "plugin-version-5.7.5-or-later"]
published_at: "2026-10-21T06:16:45+00:00"
first_seen_at: "2026-10-23T21:57:28+00:00"
updated_at: "2026-10-25T04:48:01+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-105257", "first_seen_at": "2026-10-23T21:57:28+00:00"}, {"source": "epss", "url": "https://api.first.org/data/v1/epss?cve=CVE-2026-105257", "first_seen_at": "2026-10-24T13:15:55+00:00"}]
---

# Appointment Booking WordPress plugin: agents can read every customer's record

The Appointment Booking Plugin for WordPress, before version 5.7.5, does not check whether an authenticated agent is assigned to a customer before returning that customer's record. Any logged-in agent can read and enumerate personal data for all customers on the site, including those managed by other agents.

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

## How to check

- Check the installed plugin version in the WordPress admin under Plugins; affected if below `5.7.5`.
- Review the plugin's customer lookup and search endpoints for an assignment check before returning records (unknown if sources give file names).

## Fix

- Update the Appointment Booking Plugin to `5.7.5` or later.
- Until updated, restrict agent-level accounts to trusted staff.

## Timeline

- 2026-10-23T21:57:28+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-105257
- 2026-10-24T13:15:55+00:00 epss https://api.first.org/data/v1/epss?cve=CVE-2026-105257

## From the sources

The Appointment Booking Plugin  WordPress plugin before 5.7.5 does not verify that an authenticated agent-level user is assigned to a customer before returning or searching that customer's record, allowing any agent to read and enumerate the personal information of every customer on the site, including those managed by other agents.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_