Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.23 - Authenticated (Subscriber+) Privilege Escalation via map_meta_cap Filter

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-75983",
    "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
    "assignerShortName": "Wordfence",
    "dateUpdated": "2026-09-15T06:07:31.947Z",
    "dateReserved": "2026-08-18T18:27:13.284Z",
    "datePublished": "2026-09-15T06:07:31.947Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599",
        "shortName": "Wordfence",
        "dateUpdated": "2026-09-15T06:07:31.947Z"
      },
      "title": "Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce <= 4.1.23 - Authenticated (Subscriber+) Privilege Escalation via map_meta_cap Filter",
      "descriptions": [
        {
          "lang": "en",
          "value": "The Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce plugin for WordPress is vulnerable to Privilege Escalation in all versions up to, and including, 4.1.23. This is due to the `PermissionManager::manage_permissions()` function being registered as a callback on WordPress core's `map_meta_cap` filter and unconditionally returning the always-true `'exist'` primitive for every capability check whenever the evaluated user ID is 1, without scoping this behavior to plugin-specific capabilities. This makes it possible for authenticated attackers whose account is user ID 1, even subscribers, to pass every WordPress capability check, including `manage_options`, `edit_plugins`, `edit_themes`, `promote_users`, and `update_core`, thereby elevating their privileges to administrator-equivalent power and achieving full site takeover, including remote code execution via the plugin and theme editors. Exploitation is only impactful when user ID 1 has been deliberately demoted to a lower-privilege role as a common administrator-account hardening practice; on default installations where user ID 1 retains the administrator role, no incremental privilege gain occurs."
        }
      ],
      "affected": [
        {
          "vendor": "arraytics",
          "product": "Eventin – Event Calendar, Tickets, Registration, Booking & WooCommerce",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "semver",
              "lessThanOrEqual": "4.1.23"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-269 Improper Privilege Management",
              "cweId": "CWE-269",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/ff48db43-9cfa-4dab-b25e-bbc211121f6c?source=cve"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.21/core/AccessControl/PermissionManager.php#L52"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.21/core/AccessControl/PermissionManager.php#L24"
        },
        {
          "url": "https://plugins.trac.wordpress.org/browser/wp-event-solution/tags/4.1.21/core/Admin/AdminProvider.php#L32"
        },
        {
          "url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3689867%40wp-event-solution&new=3689867%40wp-event-solution"
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "baseScore": 7.5,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "timeline": [
        {
          "time": "2026-08-18T18:42:21.000Z",
          "lang": "en",
          "value": "Vendor Notified"
        },
        {
          "time": "2026-09-14T17:13:14.000Z",
          "lang": "en",
          "value": "Disclosed"
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Wordfence PRISM",
          "type": "finder"
        }
      ]
    }
  }
}