# CVE-2026-107616: Booking for Appointments and Events Calendar <= 9.9.1 - Missing Authorization to Unauthenticated Arbitrary Event Attendee Data Exposure via '/report/event/attendees' Endpoint

Status: published. Published: 2026-11-07. Updated: 2026-11-07.

The Amelia plugin for WordPress is vulnerable to unauthorized access of attendee data due to a missing authorization check on the GetEventAttendeesCommandHandler::handle() function in versions up to, and including, 9.9.1. The handler only enforces the broad `amelia_read_events` capability — which the plugin's own `wpamelia-customer` role possesses — and does not verify that the authenticated user is an organizer/provider of the event referenced by the client-supplied `id` query parameter. This makes it possible for authenticated attackers, with wpamelia-customer-level access and above, to export the full CSV of attendee personally identifiable information (first/last name, email, phone, date of birth, gender, private notes, payment amounts/methods, WooCommerce order IDs, custom-field values, and uploaded-file URLs) for any Amelia event on the site by directly invoking the `/report/event/attendees` endpoint with an arbitrary event ID.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- melograno / Booking for Appointments and Events Calendar – Amelia: ≥ 9.0; ≤ 9.9.1 (affected, semver). Source: CNA: Wordfence

## Severity and prioritization

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: CNA: Wordfence

- CVSS 3.1: 7.5 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N; source: NVD: security@wordfence.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: Not available

- Weaknesses: CWE-862

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://www.wordfence.com/threat-intel/vulnerabilities/id/c0a43f7f-1314-4894-aaf1-b7ef0f3e6217?source=cve (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Application/Commands/Report/GetEventAttendeesCommandHandler.php#L49 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Application/Controller/Report/GetEventAttendeesController.php#L30 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Infrastructure/Routes/Report/Report.php#L40 (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Infrastructure/WP/config/Roles.php#L125 (CNA: Wordfence)

- https://wpamelia.com/documentation/changelog/ (CNA: Wordfence)

- https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Application/Commands/Report/GetEventAttendeesCommandHandler.php#L49 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Application/Controller/Report/GetEventAttendeesController.php#L30 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Infrastructure/Routes/Report/Report.php#L40 (security@wordfence.com)

- https://plugins.trac.wordpress.org/browser/ameliabooking/trunk/src/Infrastructure/WP/config/Roles.php#L125 (security@wordfence.com)

- https://wpamelia.com/documentation/changelog/ (security@wordfence.com)

- https://www.wordfence.com/threat-intel/vulnerabilities/id/c0a43f7f-1314-4894-aaf1-b7ef0f3e6217?source=cve (security@wordfence.com)

## Provenance

- CNA: Wordfence: https://www.cve.org/CVERecord?id=CVE-2026-107616; retrieved 2026-11-07; source updated 2026-11-07

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-107616; retrieved 2026-11-07; source updated 2026-11-07

Revision: 7192737bf37e1e067c40b69c77c6c931d8b556b394a1a7ad0a15884a0b7893b6

Canonical: https://y2.dev/cve/CVE-2026-107616

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

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