CVE-2026-47721: CWE-862: Missing Authorization in frangoteam FUXA
FUXA versions prior to 1.3.2 have a missing authorization vulnerability in the scheduler API endpoints. Authenticated non-admin users can create, modify, or delete scheduled device actions that normally require admin permissions. This allows unauthorized changes to device values and execution of server-side scripts, potentially affecting PLC setpoints, safety interlocks, and project data even after the user's session ends. The issue is fixed in version 1.3.2.
AI Analysis
Technical Summary
CVE-2026-47721 is a missing authorization vulnerability (CWE-862) in frangoteam's FUXA web-based SCADA/HMI software. Specifically, prior to version 1.3.2, the POST /api/scheduler and DELETE /api/scheduler endpoints in server/api/scheduler/index.js do not consistently enforce the authJwt.haveAdminPermission check. This allows authenticated non-admin operators to create or alter deviceActions invoking onSetValue or onRunScript, or delete schedules. Consequently, these users can perform device-value changes and execute server-side project scripts reserved for administrators. Scheduled and repeating actions can persist beyond the operator's session, potentially impacting PLC setpoints, safety interlocks, device states, or project data. The vulnerability is resolved in version 1.3.2.
Potential Impact
An authenticated non-admin user can bypass intended authorization controls to manipulate scheduled device actions and execute server-side scripts. This can lead to unauthorized changes in device values, PLC setpoints, safety interlocks, and project data, potentially affecting system integrity and availability. The vulnerability allows persistent unauthorized actions beyond the user's session.
Mitigation Recommendations
Upgrade FUXA to version 1.3.2 or later, where this authorization issue is fixed. No other mitigation is indicated or required as the fix addresses the root cause.
CVE-2026-47721: CWE-862: Missing Authorization in frangoteam FUXA
Description
FUXA versions prior to 1.3.2 have a missing authorization vulnerability in the scheduler API endpoints. Authenticated non-admin users can create, modify, or delete scheduled device actions that normally require admin permissions. This allows unauthorized changes to device values and execution of server-side scripts, potentially affecting PLC setpoints, safety interlocks, and project data even after the user's session ends. The issue is fixed in version 1.3.2.
CVSS v3.1
Score 6.3medium
Affected software
frangoteam
FUXA
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-47721 is a missing authorization vulnerability (CWE-862) in frangoteam's FUXA web-based SCADA/HMI software. Specifically, prior to version 1.3.2, the POST /api/scheduler and DELETE /api/scheduler endpoints in server/api/scheduler/index.js do not consistently enforce the authJwt.haveAdminPermission check. This allows authenticated non-admin operators to create or alter deviceActions invoking onSetValue or onRunScript, or delete schedules. Consequently, these users can perform device-value changes and execute server-side project scripts reserved for administrators. Scheduled and repeating actions can persist beyond the operator's session, potentially impacting PLC setpoints, safety interlocks, device states, or project data. The vulnerability is resolved in version 1.3.2.
Potential Impact
An authenticated non-admin user can bypass intended authorization controls to manipulate scheduled device actions and execute server-side scripts. This can lead to unauthorized changes in device values, PLC setpoints, safety interlocks, and project data, potentially affecting system integrity and availability. The vulnerability allows persistent unauthorized actions beyond the user's session.
Mitigation Recommendations
Upgrade FUXA to version 1.3.2 or later, where this authorization issue is fixed. No other mitigation is indicated or required as the fix addresses the root cause.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-19T21:29:25.482Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a84be80c6e8be0332b43d1f
Added to database: 08/18/2026, 20:20:16 UTC
Last enriched: 09/11/2026, 21:02:42 UTC
Last updated: 10/02/2026, 02:46:04 UTC
Views: 63
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