---
id: "CVE-2026-57639"
kind: "vulnerability"
aliases: ["CVE-2026-57639"]
title: "WP Booking System WordPress plugin: reflected XSS through version 2.1.0.6"
severity: "high"
cvss: 7.1
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "wordpress", "wp-booking-system"]
not_affected_if: ["patched-version", "plugin-not-installed"]
published_at: "2026-11-04T08:17:17+00:00"
first_seen_at: "2026-11-04T08:25:59+00:00"
updated_at: "2026-11-04T08:26:32+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-57639", "first_seen_at": "2026-11-04T08:25:59+00:00"}]
---

# WP Booking System WordPress plugin: reflected XSS through version 2.1.0.6

The WP Booking System WordPress plugin by Roland Murg does not neutralize input in generated pages, enabling reflected cross-site scripting. An attacker can run scripts in a visitor's browser by tricking them into opening a crafted link.

_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, or read the `Version` header in `wp-content/plugins/wp-booking-system/` plugin main file.
- Confirm whether the plugin is active on the site.

## Fix

- WP Booking System: no fixed version stated in the sources; affected through `2.1.0.6`.

## Timeline

- 2026-11-04T08:25:59+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-57639

## From the sources

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') vulnerability in Roland Murg WP Booking System wp-booking-system allows Reflected XSS.This issue affects WP Booking System: from n/a through 2.1.0.6.

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