What’s Vulnerable › Vulnerabilities

CVE-2026-13207: Frangoteam FUXA SCADA/HMI Authentication Bypass by Spoofing

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-06-30 · updated 2026-10-25
• Weakness: CWE-290

Description

FUXA versions 1.3.1 and prior contain an authentication bypass vulnerability via dot-segment path normalization in the REST API. The API router fails to normalize dot-segment sequences before applying authentication middleware, allowing unauthenticated requests to access protected endpoints by prefixing paths with dot-segments such as /api/./users, /api/./roles, and /api/project/../users. These requests bypass authentication checks and return sensitive user and role data without credentials.

Affected products

• Frangoteam FUXA SCADA/HMI: through 1.3.1

References

• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-181-02.json
• https://github.com/frangoteam/FUXA/releases
• https://www.cisa.gov/news-events/ics-advisories/icsa-26-181-02

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