FUXA: Scheduler API missing admin check enables operator-to-admin escalation via scheduled device actions
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-862.
Summary
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Prior to 1.3.2, POST /api/scheduler and DELETE /api/scheduler in server/api/scheduler/index.js do not consistently enforce authJwt.haveAdminPermission for scheduler settings. An authenticated non-admin operator can create or alter deviceActions that invoke onSetValue or onRunScript, or delete schedules, gaining access to device-value changes and server-side project script execution normally reserved for administrators. Scheduled and repeating actions can continue changing PLC setpoints, safety interlocks, device state, or project data after the operator's session ends. This issue is fixed in version 1.3.2.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| frangoteam | FUXA | before 1.3.2 | 1.3.2 | Patch available | CNA |
| — | fuxa-server (npm) | up to 1.1.14-1243 | — | No fix listed | GHSA-8ghr-w65f-j3qr |
- FUXA Vendorfrangoteam Affected before 1.3.2 Fixed in 1.3.2 Patch available CNA
- fuxa-server (npm) Vendor— Affected up to 1.1.14-1243 Fixed in — No fix listed GHSA-8ghr-w65f-j3qr
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:frangoteam:fuxa:*:*:*:*:*:*:*:* | — | — | frangoteam |
- cpe:2.3:a:frangoteam:fuxa:*:*:*:*:*:*:*:* Versions — — ·frangoteam
Remediation
- Fix · CNA FUXA (frangoteam) Fixed in 1.3.2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-47721
- 2026-10-03 Alias added: GHSA-8ghr-w65f-j3qr
References
More frangoteam vulnerabilities
- TI-2025-42978 FUXA 1.2.8 and prior contains an Authentication Bypass vulnerability leading to Remote… CVSS 3.1CRITICAL 9.8
- TI-2023-16709 A remote command execution (RCE) vulnerability in the /api/runscript endpoint of FUXA… CVSS 3.1CRITICAL 9.8
- TI-2023-15187 FUXA <= 1.1.12 is vulnerable to SQL Injection via /api/signin. CVSS 3.1CRITICAL 9.8
- TI-2026-32004 FUXA Vulnerable to Unauthenticated Remote Code Execution via Script Test Mode Authorization Bypass CVSS 4.0HIGH 8.9
- TI-2026-35220 FUXA: Unauthenticated SSRF via Socket.IO DEVICE_WEBAPI_REQUEST and DEVICE_PROPERTY with response reading CVSS 3.1HIGH 8.2
- TI-2026-32003 FUXA has an unauthenticated arbitrary tag value disclosure via /api/getTagValue CVSS 4.0HIGH 7.7
Sources
- CVE-2026-47721 · CVE Program
- CVE-2026-47721 · NVD
- FIRST EPSS
- GHSA-8ghr-w65f-j3qr · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences