CVE-2026-43947: high-severity vulnerability in frangoteam FUXA
FUXA Vulnerable to Unauthenticated Remote Code Execution via Script Test Mode Authorization Bypass
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.9epss 0.9%
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. Version 1.3.0 has an unauthenticated Remote Code Execution vulnerability when `secureEnabled` is set to `true`. The `POST /api/runscript` endpoint checks authorization against the stored script's permission by ID, but when `test: true` is set in the request, it compiles and executes attacker-supplied code instead of the stored script's code. An unauthenticated attacker who knows a valid script ID and name may execute arbitrary code via test mode if at least one server-side script exists and is accessible without restrictive permissions. Script IDs and names can be obtained through the unauthenticated information disclosure in `GET /api/project` (reported separately). The only prerequisite is that at least one server-side script exists in the project. Version 1.3.1 fixes the issue.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Affected products
frangoteam · FUXARelated CVEs — frangoteam FUXA
In the same product, most dangerous first.
CVE-2026-25895CRITICALFUXA Unauthenticated Remote Code Execution via Arbitrary File Write in Upload APIEPSS 12.8%CVE-2026-25939CRITICALFUXA Unauthenticated Remote Arbitrary Scheduler WriteEPSS 12.5%CVE-2026-47717HIGHFUXA's Unauthenticated Project Data Disclosure Exposes Server-Side Scripts and Device ConfigurationsEPSS 1.4%CVE-2026-25951HIGHFUXA has a Path Traversal Sanitization BypassEPSS 1.4%CVE-2026-25938CRITICALFUXA Unauthenticated Remote Code Execution in Node-RED IntegrationEPSS 1.1%CVE-2026-25894CRITICALFUXA Unauthenticated Remote Code Execution via Hardcoded JWT Secret in Default ConfigurationEPSS 0.8%