CVE-2026-54460 — OpenReception's appointment booking software provides an end-to-end encrypted appointment…¶
Key facts
CVE-2026-54460 is a Critical (9.8) vulnerability: OpenReception's appointment booking software provides an end-to-end encrypted appointment…. This entry ships a detection-only PoC and a Docker test lab.
| CVE | CVE-2026-54460 |
| Severity | Critical (9.8) |
| Detection / prevention | — |
| PoC | poc.py |
| Source | 2026/CVE-2026-54460/ |
Details¶
English | 한국어
Description¶
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to 1.1.1, POST /api/auth/passkeys accepts a request-body userId and attacker-supplied passkey without an authenticated session, does not call WebAuthnService.verifyRegistration, and does not bind enrollment to locals.user.id. An unauthenticated attacker who knows the public tenant ID and the target staff email can use the public booking bootstrap and GET /api/tenants/[id]/appointments/staff-public-keys to obtain candidate userId values. The attacker first causes UserService.addAdditionalPasskey to store a controlled public key for a candidate userId, then attempts login with the target email; the login check compares verificationResult.userId with the email-resolved account and reveals whether the injected credential belongs to that target. Repeating this injection-before-login sequence identifies the matching userId, and the normal login endpoint accepts the attacker's assertion for the stored key and creates a STAFF session. The session can expose tenant data and reveal TENANT_ADMIN identifiers for further takeover; GLOBAL_ADMIN accounts are not reachable through this tenant-scoped path. A hijacked TENANT_ADMIN can modify or delete tenant resources and key shares, potentially making appointment data permanently undecryptable and taking booking services offline. This issue is fixed in version 1.1.1.
Vulnerability Details¶
| Property | Value |
|---|---|
| CVE ID | CVE-2026-54460 |
| Type | RCE |
| CVSS Score | 9.8 |
Proof of Concept¶
Download¶
# Download PoC script
curl -O https://raw.githubusercontent.com/fankh/vulnerability-poc/main/2026/CVE-2026-54460/poc.py
Usage¶
# Run PoC against target
python3 poc.py --target <TARGET_URL>
# With authentication
python3 poc.py --target <TARGET_URL> --username <USER> --password <PASS>
⚠️ Warning: This PoC is for authorized security testing only. It uses detection-only techniques and does not exploit or damage target systems.
Test Lab¶
This repository includes a Docker-based test environment with both vulnerable and patched applications.
Quick Start¶
# Clone and navigate to CVE directory
cd CVE-2026-54460
# Start both applications
docker-compose up -d
# Run tests
./run-tests.sh # Linux/Mac
./run-tests.ps1 # Windows PowerShell
Application Endpoints¶
| Application | URL | Status |
|---|---|---|
| Vulnerable App | http://localhost:8080 | Shows vulnerability |
| Patched App | http://localhost:8081 | Demonstrates fix |
Directory Structure¶
├── README.md # English documentation
├── README_KO.md # Korean documentation
├── poc.py # PoC detection script
├── docker-compose.yml # Container orchestration
├── run-tests.sh # Linux/Mac test runner
├── run-tests.ps1 # Windows test runner
├── vulnerable-app/ # Vulnerable version
│ ├── app.py
│ ├── Dockerfile
│ └── requirements.txt
└── patched-app/ # Fixed version
├── app.py
├── Dockerfile
└── requirements.txt
References¶
- https://github.com/open-reception/appointment-booking-software/commit/5d29d9c1964ef7541a6e96d04d946c22f76eea00
- https://github.com/open-reception/appointment-booking-software/commit/93040884b783573dbf161723e508676327fdf0bf
- https://github.com/open-reception/appointment-booking-software/releases/tag/v1.1.1
- https://github.com/open-reception/appointment-booking-software/security/advisories/GHSA-g233-m625-m3pc
Generated by PoC Generator on 2026-09-18T12:35:18.122115179
Frequently asked questions¶
What is CVE-2026-54460?¶
CVE-2026-54460 is a Critical (9.8) vulnerability: OpenReception's appointment booking software provides an end-to-end encrypted appointment…. This entry ships a detection-only PoC and a Docker test lab.
How do I detect CVE-2026-54460?¶
Run the detection-only PoC included with this entry against your Docker test lab to confirm whether a target is affected; pair it with your own IDS logging.
How do I block or mitigate CVE-2026-54460?¶
Upgrade to a fixed version per the vendor advisory; the NVD record lists the affected versions. Use the included PoC to verify your remediation.
For authorized security testing and research only. See the full source and NVD record.