FUXA: Unauthenticated Socket.IO read events
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-862.
Summary
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. In 1.3.2 and earlier, the DEVICE_BROWSE, DEVICE_NODE_ATTRIBUTE, HOST_INTERFACES, and DEVICE_TAGS_REQUEST handlers in server/runtime/index.js return device-discovery, node-attribute, host-network-interface, and device-tag metadata without isSocketAdminAuthorized when secureEnabled is true. A remote unauthenticated or guest user can invoke these metadata-oriented Socket.IO events and collect system-discovery information that is not required for normal public HMI viewing, while ordinary device status, value, alarm, and dashboard events remain intentionally public. This issue is fixed in version 1.3.3.
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 1.3.3 | 1.3.3 | Patch available | CNA |
- FUXA Vendorfrangoteam Affected before 1.3.3 Fixed in 1.3.3 Patch available CNA
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 1.3.3
Timeline
- 2026-10-02 Threatist record created from CVE-2026-67440
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
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences