CVE-2026-25938 affects FUXA, a web-based SCADA/HMI/dashboard platform, in versions 1.2.8 through 1.2.10. When the Node-RED plugin is enabled, an authentication bypass in the Node-RED integration allows a remote unauthenticated attacker to access protected Node-RED functionality despite FUXA secure mode. The provided content indicates the bypass can expose Node-RED administrative or deployment endpoints such as /nodered/flows, allowing an attacker to submit or modify flows. Because Node-RED flows can execute attacker-controlled logic and may invoke dangerous nodes or child-process-capable functionality, successful exploitation can result in arbitrary code execution in the context of the FUXA service on the server. The issue was patched in FUXA 1.2.11.
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1 valid exploit after Mallory filtered fakes, detection scripts, and README-only repos.
This repository is a small standalone exploit PoC for CVE-2026-25938 affecting FUXA with Node-RED integration enabled. It contains two files: a Python exploit script and a README with vulnerability explanation, lab setup, manual curl PoC, and mitigations. The main script, CVE-2026-25938.py, is the operational entry point. It accepts a target URL plus attacker listener IP/port, constructs the endpoint <target>/nodered/flows, and submits a JSON array representing a malicious Node-RED flow. That flow contains a tab node, an inject node configured with once=true and onceDelay=0.1 so it runs immediately after deployment, and an exec node whose command is a bash reverse shell using /dev/tcp to connect back to the attacker. The script also sets a Referer header pointing to http://<target_host>/editor, likely to resemble legitimate editor traffic. Success is inferred from HTTP 200 or 204 responses. Exploit capability is direct unauthenticated remote code execution via the exposed Node-RED flows API, with the provided payload yielding an interactive reverse shell. This is not a scanner or detector; it actively deploys and triggers code execution on the target. The README states affected versions are FUXA 1.2.8 through 1.2.10 and fixed in 1.2.11. Overall maturity is operational rather than framework-grade: the payload is functional and parameterized by listener IP/port, but the exploit is a simple standalone script with a single hardcoded attack path.
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