Authentication Bypass Vulnerability in FUXA by Frango Team
CVE-2026-13207

8.7HIGH

Key Information:

Vendor

Frangoteam

Status
Fuxa Scada/hmi
Vendor
CVE Published:
30 June 2026

What is CVE-2026-13207?

FUXA versions up to 1.3.1 are vulnerable due to an issue in the REST API that allows unauthenticated users to bypass authentication checks. This occurs through improper normalization of dot-segment path sequences, enabling access to sensitive user and role data by submitting crafted API requests. Attackers can exploit paths such as /api/./users or /api/project/../users to retrieve information without any authentication credentials.

Affected Version(s)

FUXA SCADA/HMI 0 <= 1.3.1

FUXA SCADA/HMI 1.3.2

References

https://github.com/frangoteam/FUXA/releases
https://www.cisa.gov/news-events/ics-advisories/icsa-26-1...
https://github.com/cisagov/CSAF/blob/develop/csaf_files/O...

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Joshua Hayes of Cited Relevance LLC reported this vulnerability to CISA.
.