Individual skill
api-bopla
Broken Object Property Level Authorization testing covering unauthorized property reads (excessive data exposure) and writes (mass assignment) with differential evidence
internal/tools/skills/data/api-security/api-bopla/SKILL.md
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- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- data Derived category
- testing Derived category
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# API BOPLA — Broken Object Property Level Authorization (OWASP API3)
## Purpose
Test whether API responses expose restricted properties to unauthorized callers (READ) and whether unauthorized callers can modify properties they should not control (WRITE/mass assignment).
## Preconditions
- At least one valid account/session (for differential testing)
- Known API endpoints that return or accept object properties
- The authz_matrix tool available for cross-role comparison
## Attack Surface Signals
- API responses containing fields beyond what the UI displays
- Endpoints that accept JSON/XML bodies with multiple properties
- PATCH/PUT endpoints that update object fields