FKIE_CVE-2026-3045

Vulnerability from fkie_nvd - Published: 2026-03-13 19:55 - Updated: 2026-03-16 14:53
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
The Appointment Booking Calendar — Simply Schedule Appointments plugin for WordPress is vulnerable to unauthorized access of sensitive data in all versions up to and including 1.6.9.29. This is due to two compounding weaknesses: (1) a non-user-bound `public_nonce` is exposed to unauthenticated users through the public `/wp-json/ssa/v1/embed-inner` REST endpoint, and (2) the `get_item()` method in `SSA_Settings_Api` relies on `nonce_permissions_check()` for authorization (which accepts the public nonce) but does not call `remove_unauthorized_settings_for_current_user()` to filter restricted fields. This makes it possible for unauthenticated attackers to access admin-only plugin settings including the administrator email, phone number, internal access tokens, notification configurations, and developer settings via the `/wp-json/ssa/v1/settings/{section}` endpoint. The exposure of appointment tokens also allows an attacker to modify or cancel appointments.
References
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/includes/class-bootstrap.php#L151
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/includes/class-settings-api.php#L128
security@wordfence.comhttps://plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/includes/lib/td-util/class-td-api-model.php#L361
security@wordfence.comhttps://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&new=3480506%40simply-schedule-appointments%2Ftrunk&old=3475885%40simply-schedule-appointments%2Ftrunk&sfp_email=&sfph_mail=#file0
security@wordfence.comhttps://www.wordfence.com/threat-intel/vulnerabilities/id/5970b8d6-0041-4c30-a6ce-fe67ebf415f5?source=cve
Impacted products
Vendor Product Version
To clipboard 

{
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The Appointment Booking Calendar \u2014 Simply Schedule Appointments plugin for WordPress is vulnerable to unauthorized access of sensitive data in all versions up to and including 1.6.9.29. This is due to two compounding weaknesses: (1) a non-user-bound `public_nonce` is exposed to unauthenticated users through the public `/wp-json/ssa/v1/embed-inner` REST endpoint, and (2) the `get_item()` method in `SSA_Settings_Api` relies on `nonce_permissions_check()` for authorization (which accepts the public nonce) but does not call `remove_unauthorized_settings_for_current_user()` to filter restricted fields. This makes it possible for unauthenticated attackers to access admin-only plugin settings including the administrator email, phone number, internal access tokens, notification configurations, and developer settings via the `/wp-json/ssa/v1/settings/{section}` endpoint. The exposure of appointment tokens also allows an attacker to modify or cancel appointments."
    },
    {
      "lang": "es",
      "value": "El plugin Appointment Booking Calendar \u2014 Simply Schedule Appointments para WordPress es vulnerable al acceso no autorizado de datos sensibles en todas las versiones hasta la 1.6.9.29 inclusive. Esto se debe a dos debilidades combinadas: (1) un `public_nonce` no vinculado al usuario se expone a usuarios no autenticados a trav\u00e9s del endpoint REST p\u00fablico `/wp-json/ssa/v1/embed-inner`, y (2) el m\u00e9todo `get_item()` en `SSA_Settings_Api` se basa en `nonce_permissions_check()` para la autorizaci\u00f3n (que acepta el nonce p\u00fablico) pero no llama a `remove_unauthorized_settings_for_current_user()` para filtrar campos restringidos. Esto hace posible que atacantes no autenticados accedan a configuraciones del plugin solo para administradores, incluyendo el correo electr\u00f3nico del administrador, n\u00famero de tel\u00e9fono, tokens de acceso internos, configuraciones de notificaci\u00f3n y configuraciones de desarrollador a trav\u00e9s del endpoint `/wp-json/ssa/v1/settings/{section}`. La exposici\u00f3n de los tokens de citas tambi\u00e9n permite a un atacante modificar o cancelar citas."
    }
  ],
  "id": "CVE-2026-3045",
  "lastModified": "2026-03-16T14:53:46.157",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security@wordfence.com",
        "type": "Primary"
      }
    ]
  },
  "published": "2026-03-13T19:55:10.307",
  "references": [
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/includes/class-bootstrap.php#L151"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/includes/class-settings-api.php#L128"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/browser/simply-schedule-appointments/tags/1.6.9.21/includes/lib/td-util/class-td-api-model.php#L361"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://plugins.trac.wordpress.org/changeset?sfp_email=\u0026sfph_mail=\u0026reponame=\u0026new=3480506%40simply-schedule-appointments%2Ftrunk\u0026old=3475885%40simply-schedule-appointments%2Ftrunk\u0026sfp_email=\u0026sfph_mail=#file0"
    },
    {
      "source": "security@wordfence.com",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5970b8d6-0041-4c30-a6ce-fe67ebf415f5?source=cve"
    }
  ],
  "sourceIdentifier": "security@wordfence.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-862"
        }
      ],
      "source": "security@wordfence.com",
      "type": "Primary"
    }
  ]
}


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