{
 "id": "WPSEC-2026-2149",
 "url": "https://wpsec.com/vuln/WPSEC-2026-2149/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-2149/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-2149/index.md",
 "title": "Bookit — Booking & Appointment Calendar <= 2.6.0.6 - Unauthenticated Payment Bypass via 'bookit_book_appointment' AJAX Action",
 "description": "The Bookit — Booking & Appointment Calendar plugin for WordPress is vulnerable to Payment Bypass via the public 'bookit_book_appointment' AJAX action in all versions up to, and including, 2.6.0.6, due to insufficient server-side validation of the booking price and payment method. When the chosen staff member does not offer the chosen service, the price lookup returns null, which a submitted price of 0 passes. A zero price also skips the payment-method check. The handler checks only that the submitted payment method exists in the settings, not that it is enabled. This makes it possible for unauthenticated attackers to book a paid service at a price of zero, or to choose a payment method the site owner has disabled, such as paying on site, and so avoid the required online 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-840"
 ],
 "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": "2.6.0.7",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 2.6.0.7"
  ]
 },
 "introduced_in": null,
 "fixed_in": "2.6.0.7",
 "remediation": "Update to 2.6.0.7 or later.",
 "fix_released": "2026-10-29T19:57:55+00:00",
 "published": "2026-10-30T20:44:05+00:00",
 "updated": "2026-10-30T09:25:04.107843+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-2149/",
  "https://plugins.svn.wordpress.org/bookit/tags/2.6.0.7/",
  "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": "2026-10-30"
 }
}