VikBooking Hotel Booking Engine & PMS <= 1.8.18 - Unauthenticated Stored Cross-Site Scripting via Terms of Service Custom Field
- ID
- WPSEC-2026-1763
- Plugin
- VikBooking Hotel Booking Engine & PMS (vikbooking)
- Affected
- from 1.5.11 before 1.8.19
- Remediation
- Update to 1.8.19 or later.
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
- Weakness
- CWE-79
- Usage
- Plugin Low · Affected versions None seen among sites WPSec scans, 2026-10-27
- Attack surface
- VikBooking Hotel Booking Engine & PMS on WPSec AttackSurface
- Fix released
- Published
Description
The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the Terms of Service custom field saving task ('customf.savetosajax') in versions 1.5.11 up to, and including, 1.8.18. This is due to a missing capability and admin-context check on the task, which updates the name and pop-up link of any custom field and can be reached from the front end, protected only by a form token that the plugin prints on public pages. The custom field names and links are also not escaped on output on the booking confirmation and room details request-information pages. This makes it possible for unauthenticated attackers to inject arbitrary web scripts in pages that execute whenever a user accesses an affected page.
References
- https://wpsec.com/vuln/WPSEC-2026-1763/
- https://plugins.svn.wordpress.org/vikbooking/tags/1.8.19/
- https://wordpress.org/plugins/vikbooking/
Published by WPSec. Provided as is, without warranty. Corrections: contact us.
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