CVE-2026-87965 Easy Appointments < 4.0.2.2 - Unauthenticated Appointment Cancellation/Confirmation via Forgeable Email-Link Token
Unauthenticated attackers can cancel or confirm arbitrary appointments by forging email-link tokens derived from predictable timestamps.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-87965?
CVE-2026-87965 is a medium-severity authentication bypass vulnerability in Unknown Easy Appointments, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The Easy Appointments WordPress plugin before 4.0.2.2 does not use an unguessable token to authorize its mail-link appointment cancellation and confirmation action, deriving the token from a hardcoded source-embedded salt and the appointment's creation timestamp, so unauthenticated attackers who know or guess that timestamp can cancel or confirm arbitrary appointments.
Weakness: CWE-284
Which versions are affected by CVE-2026-87965?
How do I fix CVE-2026-87965?
No fix has been published for CVE-2026-87965 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-87965 being exploited?
There is no known exploitation of CVE-2026-87965 in the wild and no public exploit code.
Sources
Also known as GHSA-w73j-m9cj-hp9q.