Fuxa · Fuxa · CVE-2026-25895
**Name of the Vulnerable Software and Affected Versions**
FUXA versions prior to 1.2.10
**Description**
FUXA, a web-based Process Visualization (SCADA/HMI/Dashboard) software, contains a path traversal issue that allows an unauthenticated remote attacker to write arbitrary files to any location on the server filesystem. This flaw affects all deployments, including those with `runtime.settings.secureEnabled` set to `true`. The issue exists because the '/api/upload' endpoint lacks authentication middleware, and the `destination` parameter can be manipulated to escape the application directory. This can lead to Remote Code Execution (RCE) if an attacker overwrites application code, startup scripts, or configuration files such as `settings.js`. Potential exploitation vectors include cron injection, SSH key drops, or webshell deployment, which may result in full system compromise and exposure of connected ICS/SCADA environments.
**Recommendations**
Update to version 1.2.10.
As a temporary workaround, restrict access to the '/api/upload' endpoint to minimize the risk of exploitation.