CVE-2026-108758

Easy!Appointments through 1.6.0 Authorization Bypass via booking/register Endpoint

Published Oct 11, 2026 CVSS 4.0 · 8.8 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Easy!Appointments through 1.6.0 Authorization Bypass via booking/register Endpoint
First Time appeared Easyappointments
Easyappointments easyappointments
Weaknesses CWE-639
CPEs cpe:2.3:a:easyappointments:easyappointments:*:*:*:*:*:*:*:*
Vendors & Products Easyappointments
Easyappointments easyappointments
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N'}

cvssV4_0

{'score': 8.8, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 13, 2026, 8:01 PM
Reserved
Oct 11, 2026, 1:57 AM
Status
Deferred
Published
Oct 11, 2026, 1:17 PM
Modified
Oct 16, 2026, 7:21 PM