Security
Report a vulnerability
Help keep local STL processing private and safe by reporting security problems directly and responsibly.
Effective August 7, 2026
Private reporting
Email security@fix3dfile.com with a concise description, affected browser, reproduction steps, and the possible impact. Do not send private or copyrighted STL files; use a minimal synthetic test file when a sample is necessary.
What to report
Examples include unexpected file transmission, model data appearing outside the current browser session, script injection, unsafe file handling, denial-of-service files that bypass documented limits, or a dependency vulnerability that is exploitable through this site.
Responsible testing
Test only with files and systems you own or have permission to use. Do not access another person’s data, degrade the service, use automated traffic against a public deployment, or disclose a vulnerability publicly before there has been a reasonable opportunity to investigate it.