CVE-2026-43946: CWE-863: Incorrect Authorization in frangoteam FUXA
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Version 1.3.0 has an authorization bypass in the /api/getTagValue endpoint allows unauthenticated access to tag values when the referenced script does not exist. Version 1.3.1 patches the issue.
AI Analysis
Technical Summary
The vulnerability in frangoteam's FUXA software version 1.3.0 involves an authorization bypass in the /api/getTagValue endpoint. Specifically, when the referenced script does not exist, the endpoint allows unauthenticated access to tag values, violating proper authorization controls. This issue is addressed in version 1.3.1 of FUXA. The CVSS 4.0 vector indicates the vulnerability is remotely exploitable without authentication, requires low attack complexity, and results in high impact on confidentiality without affecting integrity or availability.
Potential Impact
An attacker can access tag values without authentication if the referenced script is missing, potentially exposing sensitive process visualization data. The impact affects confidentiality with high severity but does not affect integrity or availability.
Mitigation Recommendations
Upgrade FUXA to version 1.3.1 or later, where this authorization bypass vulnerability is patched. No official vendor advisory or patch link is provided, but the description explicitly states version 1.3.1 resolves the issue. Until upgrading, restrict access to the /api/getTagValue endpoint to trusted users or networks as a temporary measure.
CVE-2026-43946: CWE-863: Incorrect Authorization in frangoteam FUXA
Description
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Version 1.3.0 has an authorization bypass in the /api/getTagValue endpoint allows unauthenticated access to tag values when the referenced script does not exist. Version 1.3.1 patches the issue.
CVSS v4.0
Score 7.7high
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in frangoteam's FUXA software version 1.3.0 involves an authorization bypass in the /api/getTagValue endpoint. Specifically, when the referenced script does not exist, the endpoint allows unauthenticated access to tag values, violating proper authorization controls. This issue is addressed in version 1.3.1 of FUXA. The CVSS 4.0 vector indicates the vulnerability is remotely exploitable without authentication, requires low attack complexity, and results in high impact on confidentiality without affecting integrity or availability.
Potential Impact
An attacker can access tag values without authentication if the referenced script is missing, potentially exposing sensitive process visualization data. The impact affects confidentiality with high severity but does not affect integrity or availability.
Mitigation Recommendations
Upgrade FUXA to version 1.3.1 or later, where this authorization bypass vulnerability is patched. No official vendor advisory or patch link is provided, but the description explicitly states version 1.3.1 resolves the issue. Until upgrading, restrict access to the /api/getTagValue endpoint to trusted users or networks as a temporary measure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-04T16:59:09.090Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5fe6bd9c2644c7f8cb0127
Added to database: 07/21/2026, 21:38:05 UTC
Last enriched: 07/22/2026, 09:55:29 UTC
Last updated: 07/31/2026, 19:22:59 UTC
Views: 6
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