Case Studies

Review a coupon race that produces negative totals, an image fetcher reaching cloud metadata, support logs containing tokens, and an authorization patch applied to only one API version. Scope and remediate each.

Required evidence

Submit authorized reproduction, request and response evidence with secrets removed, code and configuration repair, bypass variants, deterministic regression, ASVS mapping, scope analysis, and residual risk. Raw scanner severity is not accepted without triage.

Oral defense

Demonstrate the violated invariant, explain why the repair generalizes, run a bypass attempt, and identify adjacent routes or versions included in scope.

Source backbone

Use OWASP ASVS, OWASP WSTG, OWASP Cheat Sheets, and NIST SSDF.