OpenAPI definition found (passive scan check)
Summary: Burp Scanner's passive scan check reports when a publicly available OpenAPI definition is found, which describes the structure of an HTTP-based API in YAML or JSON format. PortSwigger notes that such a definition is not necessarily a vulnerability, but can give attackers information about API structure, including detailed explanations, examples, usage scenarios, and potentially administrative functions.
What you should know: A published API definition hands attackers a map of your available operations and other sensitive details, so the documentation you deploy to production should contain only what is necessary.
Read the original at PortSwigger Research ↗
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