{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "WP Booking System \u2013 Booking Calendar",
          "vendor": "murgroland",
          "versions": [
            {
              "lessThanOrEqual": "2.1.0.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "mamgad (mamgad)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The WP Booking System - Booking Calendar plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the wpbs_action_ajax_calendar_remove_note() function in versions up to, and including, 2.1.0.5 This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete arbitrary calendar notes belonging to any calendar."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 9.1,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862 Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-31T06:44:21.690Z",
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence"
      },
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b25cc768-3377-41c9-acf5-8f6c993287c9?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.5/includes/base/admin/calendar/functions-notes.php#L123"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.5/includes/base/admin/calendar/functions-notes.php#L119"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-booking-system/tags/2.1.0.5/includes/base/admin/calendar/functions-notes.php#L111"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?old=3755940\u0026old_path=%2Fwp-booking-system%2Ftrunk\u0026new=3765778\u0026new_path=%2Fwp-booking-system%2Ftrunk"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset/3765778/wp-booking-system/trunk/includes/base/admin/calendar/functions-notes.php"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-10-26T15:04:54.000Z",
          "value": "Vendor Notified"
        },
        {
          "lang": "en",
          "time": "2026-10-30T18:25:33.000Z",
          "value": "Disclosed"
        }
      ],
      "title": "WP Booking System \u003c= 2.1.0.5 - Missing Authorization to Unauthenticated Arbitrary Calendar Note Deletion via wpbs_calendar_remove_note AJAX Action"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "cveId": "CVE-2026-116557",
    "datePublished": "2026-10-31T06:44:21.690Z",
    "dateReserved": "2026-10-26T14:45:35.039Z",
    "dateUpdated": "2026-10-31T06:44:21.690Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}