---
cve: "CVE-2026-43947"
severity: "HIGH"
cvss: 8.9
epss: "67%"
vendor: "frangoteam"
kev: false
exploited: false
published: "2026-07-21 22:17:01"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-09-03T11:00:31+02:00"
---

# CVE-2026-43947

> 8.9 HIGH · 🧪 PoC

## Beschreibung

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-Vektor

```
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
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Keine | bad |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- 78534da61a91613712b44bb63c8d7da8c5df5ca4 (Commit)
- c48f6560d8bc2e678322d2c5b21887d038a69c48 (Commit)

## Referenzen

- <https://github.com/frangoteam/FUXA/security/advisories/GHSA-rg3m-cfq7-g6h6>
- <https://github.com/frangoteam/FUXA/pull/2260>
- <https://github.com/frangoteam/FUXA/commit/78534da61a91613712b44bb63c8d7da8c5df5ca4>
- <https://github.com/frangoteam/FUXA/releases/tag/v1.3.1>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-43947) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_