CVE-2026-57639
Deferred Deferred - Pending Action

Reflected Cross-Site Scripting in WP Booking System

Vulnerability report for CVE-2026-57639, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.

Publication date: 2026-11-04

Last updated on: 2026-11-04

Assigner: Patchstack

Description

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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Meta Information

Published
2026-11-04
Last Modified
2026-11-04
Generated
2026-11-04
AI Q&A
2026-11-04
EPSS Evaluated
N/A
NVD
EUVD

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Roland Murg WP Booking System 0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-79 The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Attack-Flow Graph

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Executive Summary

This is a reflected Cross-site Scripting (XSS) vulnerability in the WP Booking System WordPress plugin. It allows attackers to inject malicious scripts into web pages viewed by users. The flaw exists due to improper neutralization of user input during web page generation.

Detection Guidance

To detect this vulnerability, check the installed version of the WP Booking System plugin. If it is 2.1.0.6 or lower, the system is vulnerable. Use commands like 'wp plugin list' in WordPress CLI or inspect the plugin files in the /wp-content/plugins/wp-booking-system/ directory for version information.

Impact Analysis

Attackers could exploit this to steal visitor data, hijack user accounts, or perform actions on behalf of users. Successful exploitation requires a user to interact with a malicious link, crafted page, or form submission. The impact includes potential data theft and unauthorized account access.

Mitigation Strategies

Immediately update the WP Booking System plugin to version 2.1.0.7 or later. If updating is not possible, apply a mitigation rule from Patchstack to block attacks until the update is applied. Remove or restrict access to untrusted users who might interact with malicious links.

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