CVE-2026-47721: CWE-862: Missing Authorization in frangoteam FUXA
FUXA versions prior to 1.3.2 have a missing authorization vulnerability in scheduler API endpoints. Authenticated non-admin users can create, modify, or delete scheduled actions that affect device values and execute server-side scripts, which should be restricted to administrators. This allows unauthorized changes to PLC setpoints, safety interlocks, device states, or project data that persist beyond the user's session. The issue is fixed in version 1.3.2.
AI Analysis
Technical Summary
FUXA, a web-based SCADA/HMI/dashboard software, has a CWE-862 missing authorization vulnerability in versions before 1.3.2. Specifically, the POST and DELETE methods on /api/scheduler do not consistently enforce admin permissions, allowing authenticated non-admin operators to manipulate scheduled device actions and server-side scripts. This unauthorized access enables changes to device values and execution of project scripts reserved for administrators. Scheduled actions can continue operating after the operator logs out. The vulnerability is addressed in FUXA version 1.3.2.
Potential Impact
An authenticated non-admin user can bypass intended authorization controls to create, modify, or delete scheduled device actions and execute server-side scripts. This can lead to unauthorized changes in device setpoints, safety interlocks, device states, and project data, potentially impacting system integrity and safety. The vulnerability affects confidentiality, integrity, and availability to a limited extent as indicated by the CVSS score of 6.3 (medium severity).
Mitigation Recommendations
Upgrade FUXA to version 1.3.2 or later, where the authorization checks for scheduler API endpoints have been properly enforced. No other mitigation is indicated or required by the vendor advisory.
CVE-2026-47721: CWE-862: Missing Authorization in frangoteam FUXA
Description
FUXA versions prior to 1.3.2 have a missing authorization vulnerability in scheduler API endpoints. Authenticated non-admin users can create, modify, or delete scheduled actions that affect device values and execute server-side scripts, which should be restricted to administrators. This allows unauthorized changes to PLC setpoints, safety interlocks, device states, or project data that persist beyond the user's session. The issue is fixed in version 1.3.2.
CVSS v3.1
Score 6.3medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
FUXA, a web-based SCADA/HMI/dashboard software, has a CWE-862 missing authorization vulnerability in versions before 1.3.2. Specifically, the POST and DELETE methods on /api/scheduler do not consistently enforce admin permissions, allowing authenticated non-admin operators to manipulate scheduled device actions and server-side scripts. This unauthorized access enables changes to device values and execution of project scripts reserved for administrators. Scheduled actions can continue operating after the operator logs out. The vulnerability is addressed in FUXA version 1.3.2.
Potential Impact
An authenticated non-admin user can bypass intended authorization controls to create, modify, or delete scheduled device actions and execute server-side scripts. This can lead to unauthorized changes in device setpoints, safety interlocks, device states, and project data, potentially impacting system integrity and safety. The vulnerability affects confidentiality, integrity, and availability to a limited extent as indicated by the CVSS score of 6.3 (medium severity).
Mitigation Recommendations
Upgrade FUXA to version 1.3.2 or later, where the authorization checks for scheduler API endpoints have been properly enforced. No other mitigation is indicated or required by the vendor advisory.
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
- Remediation Level
- null
Threat ID: 6a84be80c6e8be0332b43d1f
Added to database: 08/18/2026, 20:20:16 UTC
Last enriched: 08/18/2026, 20:38:45 UTC
Last updated: 08/18/2026, 20:48:51 UTC
Views: 4
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