WordPress security changelog
MEDIUM CVE-2026-15346 Deferred

VikBooking category filter permits reflected XSS

VikBooking through 1.8.13 reads the unauthenticated category_id request parameter in the public search view and reflects it into hidden category_id and categories input values without attribute escaping. A crafted link can therefore break out of the hidden input and execute script if a victim follows it and uses a browser or access-key interaction capable of activating the hidden control.

CVE / CNA score 6.1 CVSS 3.1 · security@wordfence.com
NVD score Pending NVD has not published its own CVSS assessment.
Component
VikBooking Hotel Booking Engine & PMS
Plugin slug
vikbooking
Affected
<= 1.8.13
Safe version
1.8.14
Published
Jul 24, 2026
Weakness
CWE-79 — Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

This CVE was published Jul 24, 2026 and is one of 18 known issues for this plugin.

What to do

Update, patch or deactivate.

Update VikBooking to 1.8.14 or later. The fixed search view converts category values other than the supported all sentinel to integers and escapes every hidden category value with JHtml::fetch('esc_attr', ...). Avoid following untrusted VikBooking search links until the plugin is updated.

A safe version is available, so updating to that version or later is the preferred remediation. If an immediate update is not practical, consider a targeted application patch or temporarily restricting the affected functionality.

Deactivate only when warranted by your risk profile, or when advised by your hosting provider in the limited circumstances where the vulnerability cannot otherwise be mitigated. If you’re unsure which action is appropriate, contact Fused or your hosting provider for guidance.

Source record

Technical description

The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Reflected Cross-Site Scripting via the 'category_id' 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 execute if they can successfully trick a user into performing an action such as clicking on a link. This is limited to browsers that support access keys as the injection is in a hidden element.

CVE / CNA vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

References

Primary and upstream sources