High severity · published Jun 30, 2026
CVE-2026-13207
Frangoteam FUXA SCADA/HMI Authentication Bypass by Spoofing
7.5
CVSS
0.6%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 49% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FS
FUXA SCADA/HMI · Frangoteam
through 1.3.1 · source: vendor
In the news
ThreatIntelHigh
Frangoteam FUXA SCADA/HMI
View CSAF
Summary
Successful exploitation of this vulnerability could allow an unauthenticated remote attacker to enumerate all user accounts and role assignments on a FUXA SCADA/HMI instance.
The following versions of Frangoteam FUXA SCADA/HMI are affected:
FUXA SCADA/HMI <=1.3.1 (CVE-2026-13207)
CVSS
Vendor
Equipment
Vulnerabilities
v3 7.5
Frangoteam
Frangoteam FUXA SCADA/HMI
Authentication Bypass by Spoofing
Background
Critical Infrastructure Sectors: Critical Manufacturing, Energy, Water and Wastewater
Countries/Areas Deployed: Worldwide
Company Headquarters Location: Switzerland
Vulnerabilities
Expand All +
CVE-2026-13207
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.
View CVE Details
Affected Products
Frangoteam FUXA SCADA/HMI
Vendor: Frangoteam
Product Version: Frangoteam FUXA SCADA/HMI: <=1.3.1
Product Status: known_affected
Remediations
Mitigation Frangoteam recommends users apply the latest ve...
Jun 30, 2026·CISA Advisories
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-13207
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-13207
github.com
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-181-02.json
github.com
https://github.com/frangoteam/FUXA/releases
www.cisa.gov
https://www.cisa.gov/news-events/ics-advisories/icsa-26-181-02
