{"id":"CVE-2026-108758","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-108758","summary":"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…","details":"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.","published":"2026-10-11T13:17:21.020","modified":"2026-10-11T13:17:21.020","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/alextselegidis/easyappointments/commit/09c6fb30b6aac0830a820d6bec3d2eb241daf150","label":"alextselegidis/easyappointments@09c6fb3"},"references":[{"type":"WEB","url":"https://github.com/alextselegidis/easyappointments"},{"type":"WEB","url":"https://github.com/alextselegidis/easyappointments/blob/4bc7ecd51f3dade8e041558f2c23dda65bd6c43e/application/controllers/Booking.php#L368-L587"},{"type":"WEB","url":"https://github.com/alextselegidis/easyappointments/commit/09c6fb30b6aac0830a820d6bec3d2eb241daf150"},{"type":"WEB","url":"https://hackmd.io/@haind/easyappointments-booking-register-appointment-takeover"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/easy-appointments-through-1.6.0-authorization-bypass-via-booking-register-endpoint"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-10-11T13:17:21.020"}}