GitHub Advisoryadvisory · npm
GHSA-r9g5-7q8j-958c FUXA provides guest and invalid-token access to protected read APIs in secure mode
MEDIUM
Official page ↗
- Aliases
- CVE-2026-47718
- Ecosystem
- npm
- Packages
- fuxa-server
- Severity
- Moderate
- CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P
- Weaknesses
- CWE-287, CWE-862
- Reviewed
- 2026-05-28
Affected packages
• npm fuxa-server: >= 1.3.0-2773, < 1.3.1 → fixed in 1.3.1
Description
Summary
When `secureEnabled=true`, FUXA `1.3.0-2773` still allows guest and invalid-token requests to read project, alarms, and scheduler APIs.
### Details
In secure mode, requests with no token or an explicitly invalid token were still able to access protected read endpoints.
Confirmed behavior:
• guest `GET /api/project` returned `200 OK`
• invalid-token requests to `/api/project` also returned successful responses containing project data
• guest and invalid-token requests also returned `200 OK` on:
• `/api/alarms`
• `/api/scheduler`
Relevant code paths identified during analysis:
• `server/api/jwt-helper.js`
• `verifyToken()` converts missing-token or invalid-token states into guest context instead of rejecting the request
• `server/api/projects/index.js`
• `server/api/alarms/index.js`
• `server/api/scheduler/index.js`
These handlers accepted the guest context and returned sensitive data in secure mode.
### PoC
Tested only against isolated local lab instances under the original tester's control. No production, customer, shared, or third-party systems were involved.
Reproduction:
1. Start FUXA `1.3.0-2773`.
2. Set `secureEnabled=true`.
3. Send unauthenticated requests to:
• `GET /api/project`
• `GET /api/alarms`
• `GET /api/scheduler?id=test`
4. Observe `200 OK` responses.
5. Send the same requests with an explicitly invalid `x-access-token` value.
6. Observe the same successful responses.
The exact HTTP requests and local PoC script used for confirmation can be provided upon request.
### Impact
This is an authentication/authorization weakness in secure mode.
Impact includes:
• project metadata disclosure
• alarms disclosure
• scheduler information disclosure
• assistance in reconnaissance/follow-on attacks
Operators who believe secure mode protects these APIs are impacted.
Related
Alias · CVE (1)
- CVE-2026-47718 FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. vulnerability