CVE-2026-15401
Received Received - Intake

Stored XSS in VikBooking Hotel Booking Engine & PMS for WordPress

Publication date: 2026-07-24

Last updated on: 2026-07-24

Assigner: Wordfence

Description
The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the 'vbfX' parameter in all versions up to, and including, 1.8.13 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. The vbfX custom-field value is stored via the public-facing saveorder task, which has no capability or authentication check enforced by default, enabling fully unauthenticated submission of malicious payloads.

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Meta Information

Published
2026-07-24
Last Modified
2026-07-24
Generated
2026-07-24
AI Q&A
2026-07-24
EPSS Evaluated
N/A
NVD
CVE-2026-15401
EUVD
EUVD-2026-48548

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
vikbooking hotel_booking_engine to 1.8.13 (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

This is a Stored Cross-Site Scripting (XSS) vulnerability in the VikBooking Hotel Booking Engine & PMS plugin for WordPress. It allows unauthenticated attackers to inject malicious scripts via the 'vbfX' parameter due to insufficient input sanitization and output escaping. The injected scripts execute when users access the affected pages.

Detection Guidance

Check for the VikBooking plugin version 1.8.13 or lower in your WordPress installation. Look for suspicious 'vbfX' parameter values in database entries or web page sources that contain unexpected scripts or payloads.

Impact Analysis

An attacker could steal user sessions, redirect users to malicious sites, or perform actions on their behalf. Since the payload is stored, any visitor to the site could be affected without needing authentication.

Compliance Impact

This vulnerability could lead to unauthorized access to user data, violating GDPR and HIPAA requirements for data protection and confidentiality. It may result in non-compliance due to potential data breaches or unauthorized data exposure.

Mitigation Strategies

Update the VikBooking plugin to the latest version immediately. Remove any unauthorized admin users or suspicious scripts from your WordPress installation. Review database entries for the 'vbfX' parameter and sanitize any malicious payloads found.

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