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1 min readConfiguration exposure · Responsible disclosure

UNESCO: three emails to a Hall of Fame

A browser extension flagged an exposed configuration file on a UNESCO resource. Verified, reported on 7 June, listed in the Hall of Fame.

After the WHO finding, which came from subdomain enumeration and directory fuzzing, this one was almost the opposite: a browser extension I run while browsing flagged that it had found something.

Verify first

An automated alert is a lead, not a finding. I confirmed by hand that the configuration file really was publicly reachable before writing anything up.

The disclosure

  • 7 June 2026: sent the report to UNESCO.
  • They replied asking for my name and email for the acknowledgement.
  • Listed in UNESCO's Hall of Fame for reporting a configuration file exposure.

Three emails from start to finish. A responsive triage team makes responsible disclosure easy.

UNESCO Hall of Fame entry: Subadevan C reported a configuration file exposure, 7 June 2026
UNESCO Hall of Fame entry: Subadevan C reported a configuration file exposure, 7 June 2026

Takeaways

  • Passive tooling that runs while you browse is worth keeping on.
  • Always verify an automated hit before you report it.
  • A short, clear report gets a short, clear response.
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