{
 "id": "WPSEC-2026-1405",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1405/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1405/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1405/index.md",
 "title": "VikBooking Hotel Booking Engine & PMS <= 1.8.16 - Unauthenticated Stored Cross-Site Scripting via Customer Email",
 "description": "The VikBooking Hotel Booking Engine & PMS plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the customer email field of the booking form in all versions up to, and including, 1.8.16, due to insufficient output escaping. The email validation accepts a quoted local part that contains double quotes and attribute text, and the stored value is printed without escaping into the value attribute of the cancellation and modification request forms on the front-end booking details page. This makes it possible for unauthenticated attackers who place a booking to inject arbitrary web scripts that execute when a user, such as a site administrator, opens the booking details page of a confirmed reservation.",
 "plugin": {
  "slug": "vikbooking",
  "name": "VikBooking Hotel Booking Engine & PMS",
  "full_name": "VikBooking Hotel Booking Engine & PMS",
  "wordpress_org": "https://wordpress.org/plugins/vikbooking/",
  "advisories_url": "https://wpsec.com/vuln/plugin/vikbooking/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/vikbooking"
 },
 "type": "XSS",
 "cwe": [
  "CWE-79"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 6.1,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "1.8.17",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 1.8.17"
  ]
 },
 "introduced_in": null,
 "fixed_in": "1.8.17",
 "remediation": "Update to 1.8.17 or later.",
 "fix_released": "2026-10-20T20:04:29+00:00",
 "published": "2026-10-21T20:43:15+00:00",
 "updated": "2026-10-21T10:35:47.608407+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1405/",
  "https://plugins.svn.wordpress.org/vikbooking/tags/1.8.17/",
  "https://wordpress.org/plugins/vikbooking/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/vikbooking",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "None seen",
  "as_of": "2026-10-21"
 }
}