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TI-2026-60005 Aliases CVE-2026-87966GHSA-52p7-4rrr-jvcv

Easy Appointments 4.0 - 4.0.2.1 - Unauthenticated Arbitrary Appointment Modification and Deletion via IDOR

Priority LOW 30CWE-639Published · 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-639.

Summary

The Easy Appointments WordPress plugin before 4.0.2.2 does not perform an ownership or authorization check on its unauthenticated appointment-reservation endpoint before updating an existing appointment identified by a request-supplied id, allowing unauthenticated attackers to overwrite, and through a follow-on cleanup delete, arbitrary appointments.

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 Easy Appointments (Unknown): 4.0.2.2

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
UnknownEasy Appointments4.0 to before 4.0.2.24.0.2.2Patch availableCNA
  • Easy Appointments VendorUnknown Affected 4.0 to before 4.0.2.2 Fixed in 4.0.2.2 Patch available CNA

Remediation

  • Fix · CNA Easy Appointments (Unknown) Fixed in 4.0.2.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Easy Appointments 4.0.2.2

    2 records Highest priority Priority LOW 2 LOW

    Other records, highest priority first

    • TI-2026-60004 Easy Appointments < 4.0.2.2 - Unauthenticated Appointment Cancellation/Confirmation via Forgeable Email-Link TokenPriority LOW 22
    Show all 2 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-87966
  2. 2026-10-03 Alias added: GHSA-52p7-4rrr-jvcv

References

Exploit 1

Sources

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