{
 "id": "WPSEC-2026-1142",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1142/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1142/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1142/index.md",
 "title": "Bookit — Booking & Appointment Calendar <= 2.6.0.5 - Unauthenticated Payment Bypass via 'payment_status' Parameter",
 "description": "The Bookit — Booking & Appointment Calendar plugin for WordPress is vulnerable to Payment Bypass via the 'payment_status' parameter of the public 'bookit_book_appointment' AJAX action in all versions up to, and including, 2.6.0.5, due to the booking handler passing every client-supplied POST field into the appointment data, including 'payment_status', which is then stored as the status of the booking's payment record. This makes it possible for unauthenticated attackers to create paid bookings that are recorded as already paid (complete) without making any payment.",
 "plugin": {
  "slug": "bookit",
  "name": "Bookit — Booking & Appointment Calendar",
  "full_name": "Bookit — Booking & Appointment Calendar",
  "wordpress_org": "https://wordpress.org/plugins/bookit/",
  "advisories_url": "https://wpsec.com/vuln/plugin/bookit/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/bookit"
 },
 "type": "BYPASS",
 "cwe": [
  "CWE-915"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 5.3,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "2.6.0.6",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 2.6.0.6"
  ]
 },
 "introduced_in": null,
 "fixed_in": "2.6.0.6",
 "remediation": "Update to 2.6.0.6 or later.",
 "fix_released": "2026-10-15T22:54:15+00:00",
 "published": "2026-10-16T23:40:51+00:00",
 "updated": "2026-10-16T09:50:44.762812+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1142/",
  "https://plugins.svn.wordpress.org/bookit/tags/2.6.0.6/",
  "https://wordpress.org/plugins/bookit/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/bookit",
 "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": "2026-10-16"
 }
}