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CVE-2026-6820— VikBooking Hotel Booking Engine & PMS <= 1.8.8 - Unauthenticated Stored Cross-Site Scripting via Booking Form Email Field

Quick assessment

Affected
e4jvikwp VikBooking Hotel Booking Engine & PMS
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.

WordPress VikBooking Hotel Booking Engine & PMS是WordPress基金会的一款酒店预订引擎与物业管理系统组件。 WordPress VikBooking Hotel Booking Engine & PMS 1.8.8及之前版本存在跨站脚本漏洞，该漏洞源于对'email'参数的输入清理和输出转义不充分，可能导致未经验证的攻击者在页面中注入任意Web脚本，当用户访问被注入的页面时脚本会执行。

CVSS 7.2 · High EPSS 0.39% · P31

Affected Version Matrix 1

VendorProduct Version RangeStatus
e4jvikwp VikBooking Hotel Booking Engine & PMS ≤ 1.8.8 affected
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I. Basic Information for CVE-2026-6820

Vulnerability Information
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Vulnerability Title
VikBooking Hotel Booking Engine & PMS <= 1.8.8 - Unauthenticated Stored Cross-Site Scripting via Booking Form Email Field
Source: CVE Program / CVE List V5
Vulnerability Description
The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'email' parameter in all versions up to, and including, 1.8.8 due to insufficient input sanitization and output escaping. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
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
Vulnerability Title
WordPress VikBooking Hotel Booking Engine & PMS 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress VikBooking Hotel Booking Engine & PMS是WordPress基金会的一款酒店预订引擎与物业管理系统组件。 WordPress VikBooking Hotel Booking Engine & PMS 1.8.8及之前版本存在跨站脚本漏洞，该漏洞源于对'email'参数的输入清理和输出转义不充分，可能导致未经验证的攻击者在页面中注入任意Web脚本，当用户访问被注入的页面时脚本会执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
e4jvikwp VikBooking Hotel Booking Engine & PMS 0 ~ 1.8.8 -

II. Public POCs for CVE-2026-6820

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III. Intelligence Information for CVE-2026-6820

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Vendor Advisories for CVE-2026-6820 (1)

IV. Related Vulnerabilities

Same product: VikBooking Hotel Booking Engine & PMS
Same vendor: e4jvikwp
Same weakness: CWE-79

V. Comments for CVE-2026-6820

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