OpenReception Appointment Booking Software up to 1.0.4 Schedule Endpoint schedule ID information disclosure

Summaryinfo

A vulnerability identified as problematic has been detected in OpenReception Appointment Booking Software up to 1.0.4. This vulnerability affects unknown code of the file /api/tenants/{id}/schedule of the component Schedule Endpoint. Performing a manipulation of the argument ID results in information disclosure. This vulnerability is cataloged as CVE-2026-48078. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as problematic has been found in OpenReception Appointment Booking Software up to 1.0.4. This affects some unknown functionality of the file /api/tenants/{id}/schedule of the component Schedule Endpoint. The manipulation of the argument id with an unknown input leads to a information disclosure vulnerability. CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.5, the unauthenticated `/api/tenants/{id}/schedule` endpoint returns every non-archived channel for a tenant regardless of the channel's `isPublic` flag. Channels marked `isPublic = false` are intended to be invisible to public callers; the dashboard creates them deliberately to hide internal-only services from the patient booking UI. The schedule endpoint ignores the flag entirely and discloses channel names, descriptions, IDs, agent associations, pause status, confirmation requirements, and computed slot availability for the requested date range. The asymmetry between `addAppointmentToTunnel` (which enforces `eq(channel.isPublic, true)`) and the schedule endpoint (which does not) confirms the design intent: private channels exist as a real access boundary in the booking flow, just not in the schedule disclosure. Version 1.0.5 patches the issue.

The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2026-48078 since 05/20/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 1.0.5 eliminates this vulnerability.

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Productinfo

Type

• Appointment Software

Vendor

• OpenReception

Name

• Appointment Booking Software

Version

• 1.0.0
• 1.0.1
• 1.0.2
• 1.0.3
• 1.0.4

CPE 2.3info

• 🔒
• 🔒
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CPE 2.2info

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• 🔒

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