CVE-2026-6820— VikBooking Hotel Booking Engine & PMS <= 1.8.8 - Unauthenticated Stored Cross-Site Scripting via Booking Form Email Field
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseGet alerts for future matching vulnerabilitiesLog in to subscribe
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: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
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: NVD (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
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-6820 (1)
IV. Related Vulnerabilities
Same product: VikBooking Hotel Booking Engine & PMS
- CVE-2026-6818
VikBooking Hotel Booking Engine & PMS <= 1.8.8 - Unauthentic - CVE-2026-57723
WordPress VikBooking Hotel Booking Engine & PMS plugin <= 1. - CVE-2026-12754
VikBooking Hotel Booking Engine & PMS <= 1.8.12 - Reflected - CVE-2026-42683
WordPress VikBooking Hotel Booking Engine & PMS plugin <= 1. - CVE-2026-42762
WordPress VikBooking Hotel Booking Engine & PMS plugin <= 1.
Same vendor: e4jvikwp
- CVE-2026-6818
VikBooking Hotel Booking Engine & PMS <= 1.8.8 - Unauthentic - CVE-2026-57723
WordPress VikBooking Hotel Booking Engine & PMS plugin <= 1. - CVE-2026-12754
VikBooking Hotel Booking Engine & PMS <= 1.8.12 - Reflected - CVE-2026-52699
WordPress VikRentCar plugin <= 1.4.5 - Insecure Direct Objec - CVE-2026-42683
WordPress VikBooking Hotel Booking Engine & PMS plugin <= 1.
Same weakness: CWE-79
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Mistune renderers/html.safe_url: HARMFUL_PROTOCOLS list miss - CVE-2026-59926
Mistune: XSS via unescaped class option in Admonition direct - CVE-2026-59923
Mistune: XSS via percent-encoded javascript URI bypass in sa - CVE-2026-59895
Hono: Server-Side XSS via JSX Escaping Bypass in cx() Utilit - CVE-2026-57439
CyberChef: Prototype pollution in Series Chart operation
V. Comments for CVE-2026-6820
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