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CVE-2026-57639— WordPress WP Booking System plugin <= 2.1.0.6 - Cross Site Scripting (XSS) vulnerability

Quick assessment

Affected
Roland Murg WP Booking System
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Roland Murg 开发的 WP Booking System（wp-booking-system）插件存在“网页生成过程中输入未正确中和”漏洞（即跨站脚本攻击，XSS），可导致反射型跨站脚本攻击。该问题影响 WP Booking System 插件的所有版本，从未知版本起至 2.1.0.6 版。

CVSS 7.1 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-57639

Vulnerability Information
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Vulnerability Title
WordPress WP Booking System plugin <= 2.1.0.6 - Cross Site Scripting (XSS) vulnerability
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Roland Murg WP Booking System 0 ~ 2.1.0.6 -

II. Public POCs for CVE-2026-57639

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III. Intelligence Information for CVE-2026-57639

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Other References for CVE-2026-57639 (1)

IV. Related Vulnerabilities

Same product: WP Booking System
Same vendor: Roland Murg
Same weakness: CWE-79