CVE-2026-108758
Easy!Appointments through 1.6.0 contains an authorization bypass vulnerability in…
- Risk score
- 58/100
- CVSS
- 8.2 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 11 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Easy!Appointments through 1.6.0 contains an authorization bypass vulnerability in Booking::register() that allows unauthenticated attackers to modify any appointment by supplying an appointment id without its hash. Attackers can enumerate sequential appointment ids with a self-asserted manage_mode flag to rewrite appo…
- Affected
- See advisory
- Fix
- Apply the vendor's security update; see the linked advisory.
- Exploitation
- No known exploitation
Why it is Yellow
- CVSS 8.2 high
- Remotely exploitable without logging in
References
- https://github.com/alextselegidis/easyappointments
- https://github.com/alextselegidis/easyappointments/blob/4bc7ecd51f3dade8e041558f2c23dda65bd6c43e/application/controllers/Booking.php#L368-L587
- https://github.com/alextselegidis/easyappointments/commit/09c6fb30b6aac0830a820d6bec3d2eb241daf150
- https://hackmd.io/@haind/easyappointments-booking-register-appointment-takeover
- https://www.vulncheck.com/advisories/easy-appointments-through-1.6.0-authorization-bypass-via-booking-register-endpoint
- https://hackmd.io/@haind/easyappointments-booking-register-appointment-takeover
Original description
Easy!Appointments through 1.6.0 contains an authorization bypass vulnerability in Booking::register() that allows unauthenticated attackers to modify any appointment by supplying an appointment id without its hash. Attackers can enumerate sequential appointment ids with a self-asserted manage_mode flag to rewrite appointment details, rebind them to attacker-controlled customers, and obtain management hashes for rescheduling or cancellation.
Last activity 11 Oct 2026. Patch Forecast updates every hour.