CVE-2026-6818
Deferred Deferred - Pending Action

Stored XSS in VikBooking Hotel Booking Engine & PMS for WordPress

Publication date: 2026-07-08

Last updated on: 2026-07-08

Assigner: Wordfence

Description
The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'special_requests' 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.

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Meta Information

Published
2026-07-08
Last Modified
2026-07-08
Generated
2026-07-11
AI Q&A
2026-07-08
EPSS Evaluated
2026-07-09
NVD
CVE-2026-6818
EUVD
EUVD-2026-42214

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
vikbooking hotel_booking_engine to 1.8.8 (inc)

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.

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Executive Summary

The VikBooking Hotel Booking Engine & PMS plugin for WordPress has a Stored Cross-Site Scripting (XSS) vulnerability in the 'special_requests' parameter in all versions up to and including 1.8.8.

This vulnerability exists because the plugin does not properly sanitize input or escape output, allowing unauthenticated attackers to inject arbitrary web scripts.

These injected scripts execute whenever a user accesses the affected page, potentially compromising user interactions.

Impact Analysis

This vulnerability can allow attackers to execute malicious scripts in the context of users visiting the affected pages.

Such attacks can lead to theft of user credentials, session hijacking, defacement, or other malicious actions performed on behalf of the user.

Because the vulnerability is exploitable without authentication, it increases the risk of widespread exploitation.

Compliance Impact

The vulnerability in the VikBooking Hotel Booking Engine & PMS plugin allows unauthenticated attackers to inject arbitrary web scripts via a stored cross-site scripting (XSS) flaw. This can lead to unauthorized access to user data or session hijacking when users access the injected pages.

Such unauthorized access or exposure of personal data could potentially violate data protection regulations like GDPR or HIPAA, which require safeguarding user information against unauthorized access and ensuring data integrity.

Therefore, this vulnerability may negatively impact compliance with these standards by exposing personal or sensitive data to attackers through the exploitation of the XSS flaw.

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