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TI-2026-35518 Aliases CVE-2026-48077

OpenReception: GET appointment by ID returns full appointment record without authorization

Priority MEDIUM 63CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.1.0, the GET handler at `/api/tenants/{id}/appointments/{appointmentId}` performs no authorization check before returning the appointment record. Any party who knows or obtains a valid appointment UUID receives the full row, including channel and agent IDs, time and timezone, status, and the AES-GCM ciphertext components (`encryptedPayload`, `iv`, `authTag`, `dataKey`). The same file's DELETE handler calls `checkPermission(locals, tenantId, true)` before allowing deletion. The intent is clear: appointment records are tenant-scoped and require authentication to access. The GET handler is missing the equivalent call. The middleware chain (`apiAuthHandle`, `authGuard`) does not compensate: API paths bypass `authGuard` entirely, and `apiAuthHandle` does not block requests to non-admin paths when no token is present. Version 1.1.0 patches the issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00434 37th percentileScored 2026-11-07
Fix Fixed appointment-booking-software (open-reception): 1.1.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
open-receptionappointment-booking-softwarebefore 1.1.01.1.0Patch availableCNA
  • appointment-booking-software Vendoropen-reception Affected before 1.1.0 Fixed in 1.1.0 Patch available CNA

Remediation

  • Fix · CNA appointment-booking-software (open-reception) Fixed in 1.1.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-48077

References

Other 2

  • TI-2026-35529 OpenReception vulnerable to unauthenticated staff crypto poisoning that breaks E2E recipient directory CVSS 3.1CRITICAL 9.4
  • TI-2026-35528 OpenReception: WebAuthn passkey injection allows account takeover CVSS 3.1CRITICAL 9.8
  • TI-2026-35526 OpenReception has unauthenticated GLOBAL_ADMIN account creation post-bootstrap CVSS 3.1CRITICAL 9.8
  • TI-2026-35527 OpenReception: Tenant admin self-promotes to GLOBAL_ADMIN CVSS 3.1CRITICAL 9.9
  • TI-2026-79990 Host header poisoning in OpenReception enables account takeover CVSS 3.1HIGH 8.3
  • TI-2026-35522 OpenReception vulnerable to stored click-triggered XSS via javascript: tenant links rendered into patient-facing footer CVSS 3.1HIGH 8.1
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences