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TI-2026-54129 Aliases CVE-2026-77689GHSA-mqrq-3vgp-g3ff

Amelia Pro 9.0 - 9.8 - Unauthenticated Payment Bypass

Priority LOW 30CWE-284Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-284.

Summary

The Booking for Appointments and Events Calendar WordPress plugin before 9.8.1 does not verify that a payment was actually taken before recording a booking as paid, trusting the payment gateway named in a public, unauthenticated booking request even when the site has never configured that gateway. This lets an unauthenticated attacker obtain confirmed, fully paid appointments and events without any payment being collected.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00304 23rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix Fixed Booking for Appointments and Events Calendar (Unknown): 9.8.1

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
UnknownBooking for Appointments and Events Calendar9.0 to before 9.8.19.8.1Patch availableCNA
  • Booking for Appointments and Events Calendar VendorUnknown Affected 9.0 to before 9.8.1 Fixed in 9.8.1 Patch available CNA

Remediation

  • Fix · CNA Booking for Appointments and Events Calendar (Unknown) Fixed in 9.8.1

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-77689
  2. 2026-10-03 Alias added: GHSA-mqrq-3vgp-g3ff

References

Exploit 1

Sources

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