{
 "id": "WPSEC-2026-2590",
 "url": "https://wpsec.com/vuln/WPSEC-2026-2590/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-2590/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-2590/index.md",
 "title": "Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution <= 2.5.0 - Authenticated (Subscriber+) Insecure Direct Object Reference to Guest Bookings via My Bookings List",
 "description": "The Fluent Booking plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'My Bookings' list ([fluent_booking_lists] shortcode and the front-end bookings endpoint) in all versions up to, and including, 2.5.0. This is due to the list selecting bookings by the logged-in user's email address alone, with no check that the booking belongs to that account, while WordPress lets a user change their account email through the REST API without verifying the inbox. This makes it possible for authenticated attackers, with subscriber-level access and above, to set their account email to a guest's address and then view that guest's bookings. The list also links to each booking's management page, so the attacker can cancel or reschedule them.",
 "plugin": {
  "slug": "fluent-booking",
  "name": "Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution",
  "full_name": "Fluent Booking – The Ultimate Appointments Scheduling, Events Booking, Events Calendar Solution",
  "wordpress_org": "https://wordpress.org/plugins/fluent-booking/",
  "advisories_url": "https://wpsec.com/vuln/plugin/fluent-booking/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/fluent-booking"
 },
 "type": "IDOR",
 "cwe": [
  "CWE-639"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 5.4,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "2.6.0",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 2.6.0"
  ]
 },
 "introduced_in": null,
 "fixed_in": "2.6.0",
 "remediation": "Update to 2.6.0 or later.",
 "fix_released": "2026-11-04T13:57:10+00:00",
 "published": "2026-11-05T14:50:37+00:00",
 "updated": "2026-11-05T10:27:26.669637+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-2590/",
  "https://plugins.svn.wordpress.org/fluent-booking/tags/2.6.0/",
  "https://wordpress.org/plugins/fluent-booking/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/fluent-booking",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-11-05"
 }
}