{
 "id": "WPSEC-2026-1181",
 "url": "https://wpsec.com/vuln/WPSEC-2026-1181/",
 "json_url": "https://wpsec.com/vuln/WPSEC-2026-1181/advisory.json",
 "markdown_url": "https://wpsec.com/vuln/WPSEC-2026-1181/index.md",
 "title": "WP Booking System <= 2.1.0.3 - Authenticated (Subscriber+) Missing Authorization to Booking Data Exposure via Admin Calendar Refresh AJAX Action",
 "description": "The WP Booking System plugin for WordPress is vulnerable to unauthorized access of data via the wpbs_refresh_calendar_editor AJAX action in all versions up to, and including, 2.1.0.3, due to a missing capability and calendar access check. The handler built the admin calendar and calendar editor output for any supplied calendar ID. This makes it possible for authenticated attackers, with subscriber-level access and above, to view the admin calendar output of arbitrary calendars, including booking IDs and private date descriptions.",
 "plugin": {
  "slug": "wp-booking-system",
  "name": "WP Booking System",
  "full_name": "WP Booking System – Booking Calendar",
  "wordpress_org": "https://wordpress.org/plugins/wp-booking-system/",
  "advisories_url": "https://wpsec.com/vuln/plugin/wp-booking-system/",
  "attacksurface": "https://attacksurface.wpsec.com/plugin/wp-booking-system"
 },
 "type": "NO AUTHORISATION",
 "cwe": [
  "CWE-862"
 ],
 "cve": [],
 "cvss": {
  "version": "3.1",
  "score": 4.3,
  "vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
  "severity": "Medium"
 },
 "affected": {
  "ranges": [
   {
    "from": null,
    "from_inclusive": true,
    "to": "2.1.0.4",
    "to_inclusive": false
   }
  ],
  "text": [
   "all versions before 2.1.0.4"
  ]
 },
 "introduced_in": null,
 "fixed_in": "2.1.0.4",
 "remediation": "Update to 2.1.0.4 or later.",
 "fix_released": "2026-10-16T09:49:18+00:00",
 "published": "2026-10-17T10:43:31+00:00",
 "updated": "2026-10-17T09:24:53.701985+00:00",
 "also_published_as": null,
 "references": [
  "https://wpsec.com/vuln/WPSEC-2026-1181/",
  "https://plugins.svn.wordpress.org/wp-booking-system/tags/2.1.0.4/",
  "https://wordpress.org/plugins/wp-booking-system/"
 ],
 "attacksurface_url": "https://attacksurface.wpsec.com/plugin/wp-booking-system",
 "source": "WPSec",
 "license": {
  "name": "CC BY 4.0",
  "url": "https://creativecommons.org/licenses/by/4.0/"
 },
 "usage": {
  "plugin": "Low",
  "affected_versions": "Low",
  "as_of": "2026-10-17"
 }
}