CVE-2026-3045

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{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Appointment Booking Calendar \u2014 Simply Schedule Appointments Booking Plugin", "vendor": "croixhaug", "versions": [{"lessThanOrEqual": "1.6.9.29", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "security@wordfence.com"}], "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": "2026-06-17T10:42:56.190", "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": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-3045", "options": [{"exploitation": "none"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-13T16:06:51.327965Z", "version": "2.0.3"}}]}, "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=&sfph_mail=&reponame=&new=3480506%40simply-schedule-appointments%2Ftrunk&old=3475885%40simply-schedule-appointments%2Ftrunk&sfp_email=&sfph_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": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-862"}], "source": "security@wordfence.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,1.6.9.29]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Appointment Booking Calendar \u2014 Simply Schedule Appointments Booking Plugin", "source": "cna", "vendor": "croixhaug"}, "product": "appointment_booking_calendar_\u2014_simply_schedule_appointments_booking_plugin", "vendor": "croixhaug"}, {"configurations": [{"platform": null, "status": "unaffected", "versions": null}], "enrichment": {"confidence": 80.0, "confidence_source": "inferred", "scores": [{"score": 80.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "product": "wordpress", "vendor": "wordpress"}], "analysis": {"en": {"generated_at": "2026-03-19T14:43:31.333870+00:00", "value": {"mitigation_remediation": ["Upgrade the Appointment Booking Calendar plugin to the latest release (after version 1.6.9.29).", "If an upgrade is not immediately possible, block or restrict access to the /wp-json/ssa/v1/settings/* and /wp-json/ssa/v1/embed-inner endpoints using web server rules or a firewall filter.", "Verify that sensitive data such as internal tokens are removed from the plugin\u2019s configuration or stored in a less accessible location."], "summary": {"action": "Immediate Patch", "impact": "Sensitive Information Exposure"}, "threat_synthesis": {"affected_systems": "All WordPress installations running the Appointment Booking Calendar \u2014 Simply Schedule Appointments plugin version 1.6.9.29 or earlier are affected. This applies to the plugin product disclosed by croixhaug.", "description_and_impact": "The vulnerability allows unauthenticated users to retrieve sensitive plugin settings through the WordPress REST API. Because the plugin\u2019s settings endpoint accepts a nonce that is not user-bound and fails to filter restricted fields, an attacker can read the administrator email, phone number, internal access tokens, notification configurations, and developer settings. This disclosure of confidential information may enable further malicious actions such as modifying or canceling appointments and abusing internal tokens. The weakness corresponds to Missing Authorization (CWE\u2011862).", "risk_and_exploitability": "The CVSS score of 7.5 indicates a high severity, while the EPSS score of less than 1% suggests a low current exploitation probability. The vulnerability is not listed in the CISA KEV catalog. Attackers can exploit it via unauthenticated network requests to the /wp-json/ssa/v1/settings/{section} endpoint using a publicly exposed nonce. The absence of a user check means any visitor of the site\u2019s REST API can gain the exposed data, making the attack vector straightforward for remote unauthenticated attackers."}}}}, "created": "2026-03-16T09:37:59.322524+00:00", "updated": "2026-03-23T09:59:44.949466+00:00", "vendors": ["croixhaug", "croixhaug$PRODUCT$appointment_booking_calendar_\u2014_simply_schedule_appointments_booking_plugin", "wordpress", "wordpress$PRODUCT$wordpress"]}