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TI-2026-86488 Aliases CVE-2026-107616GHSA-5gw3-gf5c-2x2p

Missing authorization in Amelia plugin exposes event attendee data

Priority LOW 39CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

The Booking for Appointments and Events Calendar (Amelia) plugin for WordPress, from 9.0 through 9.9.1, does not check whether a user is the organizer of an event before returning its attendee report. This missing authorization check (CWE-862) lets an authenticated user with customer-level access export personal data of attendees for any event on the site, including names, email addresses, phone numbers, dates of birth, and payment details.

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00502 43rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
melogranoBooking for Appointments and Events Calendar – Amelia9.0 – 9.9.1—No fix listedCNA
  • Booking for Appointments and Events Calendar – Amelia Vendormelograno Affected 9.0 – 9.9.1 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Booking for Appointments and Events Calendar (Amelia).

Written with Claude Haiku 5.5 from the sources below · 2026-11-07

Timeline

  1. 2026-11-07 Threatist record created from CVE-2026-107616
  2. 2026-11-07 Alias added: GHSA-5gw3-gf5c-2x2p
  3. 2026-11-08 Priority changed: MEDIUM → LOW
  4. 2026-11-08 CISA SSVC decision points changed

References

Other 6

  • TI-2026-07957 Improper privilege management in melograno Booking for Appointments and Events Calendar… CVSS 3.1CRITICAL 9.8
  • TI-2026-81737 Arbitrary file upload in The Innovative Form Builder IvyForms plugin CVSS 3.1HIGH 8.8
  • TI-2026-05512 Cross-site scripting in melograno Booking for Appointments and Events Calendar – Amelia CVSS 3.1HIGH 7.2
  • TI-2026-83520 Sensitive data exposure in Amelia booking plugin for WordPress CVSS 3.1MEDIUM 5.3
  • TI-2026-13834 Booking for Appointments and Events Calendar - Amelia <= 2.4.5 - Missing Authorization to Unauthenticated Payment Bypass CVSS 3.1MEDIUM 5.3
  • TI-2026-86487 Missing authorization in Amelia plugin exposes booking records CVSS 3.1MEDIUM 6.5
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences