Medium severity · published Aug 6, 2026
CVE-2026-48078
OpenReception's schedule endpoint discloses isPublic=false channels and slot availability to unauthenticated callers
5.3
CVSS
0.3%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 28% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AP
appointment-booking-software · open-reception
< 1.0.5 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-48078
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-48078
github.com
https://github.com/open-reception/appointment-booking-software/commit/f47320dd8a236750442a60cb32829b04e99eb8df
github.com
https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-v6fw-m2mg-5gr9
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