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API inSecurity TOP 10

David SopasPaulo Silva

Breaks down the OWASP API Security Top 10 vulnerabilities with real-world examples and remediation advice.

Summary

David Sopas and Paulo Silva, core contributors to the OWASP API Security Project, lead a guided tour through the OWASP API Security Top 10 in the AppSec Village [00:30, 00:37]. The speakers examine the paradigm shift toward decoupled single-page applications and mobile frontends that interact with distributed REST and GraphQL backends [06:38].

The presentation demonstrates real-world vulnerability scenarios, highlighting Broken Object Level Authorization (BOLA/IDOR) where cross-referencing identifiers across GraphQL queries and REST endpoints permits unauthorized data access [13:33, 13:46]. Sopas and Silva examine resource exhaustion and lack of rate limiting leading to user enumeration [20:44], mass assignment flaws, and improper asset management that leaves unpatched legacy API endpoints exposed to attackers [28:21].

(AI summary — Gemini Flash)

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