Individual skill

api-security

0upvotes

API security testing - GraphQL, REST API, WebSocket, and Web-LLM attack techniques.

skills/api-security/SKILL.md

Read pinned source

Source commit 95fdc128af4ca1ae16b3226f9430f1bad97b0656

What was checked

Matches the observed repository HEAD: Yes
Scanner rules are current: No
Repository scan complete: No
Skill scan complete: No
Observed behavior: Not checked yet
Last checked: Nov 5, 2026

These are observations at the recorded commit, not a guarantee of safety. Review the source before running it.

Install this skill

Choose an agent in your Stack or copy a command below. Commands fetch the pinned commit and copy only this skill directory. Existing destinations are refused. Copying a command does not install anything.

An install command is unavailable: current rules, complete repository and skill scans, an eligible behavior level and a permitted license are required.

Repository context

Repository stars (not skill ratings): 610
Repository last updated: Jul 29, 2026
License: MIT

Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.

bounty-hunters Repository topic
hackerone Repository topic
pentest Repository topic
pentest-tool Repository topic
security Repository topic
security-research Repository topic
security-tools Repository topic
security Derived category
testing Derived category

Files and excerpt

File metadata and permitted, redacted excerpts come from the recorded scan. Source links are pinned to that commit.

Browse files

SKILL.mdcore · 3,662 bytes
reference/INDEX.mddoc · 4,557 bytes
reference/api-security-principles.mddoc · 6,962 bytes
reference/graphql-resources.mddoc · 4,113 bytes
reference/owasp-api-top10-coverage.mddoc · 9,376 bytes
reference/scenarios/graphql/auth-bypass-and-injection.mddoc · 3,232 bytes
reference/scenarios/graphql/csrf-and-content-type.mddoc · 2,629 bytes
reference/scenarios/graphql/dos-and-batching.mddoc · 1,978 bytes
reference/scenarios/graphql/endpoint-discovery.mddoc · 2,504 bytes
reference/scenarios/graphql/idor-and-mass-enumeration.mddoc · 4,914 bytes
reference/scenarios/graphql/introspection-and-bypass.mddoc · 4,685 bytes
reference/scenarios/graphql/rate-limit-bypass.mddoc · 3,269 bytes
reference/scenarios/graphql/schema-reconstruction.mddoc · 2,615 bytes
reference/scenarios/mcp/inspector-stdio-rce.mddoc · 6,529 bytes
reference/scenarios/rest/api-recon-and-discovery.mddoc · 4,966 bytes
reference/scenarios/rest/cognito-unauth-and-srp.mddoc · 3,818 bytes
reference/scenarios/rest/content-type-confusion-xxe.mddoc · 2,882 bytes
reference/scenarios/rest/cors-misconfiguration.mddoc · 5,285 bytes
reference/scenarios/rest/exposed-documentation.mddoc · 2,704 bytes
reference/scenarios/rest/https-downgrade-redirect-hsts.mddoc · 4,985 bytes
reference/scenarios/rest/mass-assignment.mddoc · 4,086 bytes
reference/scenarios/rest/mattermost-slash-command-dialog-hijack.mddoc · 5,427 bytes
reference/scenarios/rest/odata-deep-authz.mddoc · 3,995 bytes
reference/scenarios/rest/options-method-enumeration.mddoc · 2,788 bytes
reference/scenarios/rest/owasp-bola-bopla.mddoc · 4,117 bytes
reference/scenarios/rest/sspp-query-string.mddoc · 3,814 bytes
reference/scenarios/rest/sspp-rest-path.mddoc · 3,395 bytes
reference/scenarios/rest/unauth-existence-oracle.mddoc · 4,409 bytes
reference/scenarios/rest/unauthenticated-webhook-oracle.mddoc · 4,924 bytes
reference/scenarios/rest/verbose-error-schema-disclosure.mddoc · 5,183 bytes
reference/scenarios/rest/waf-bypass-techniques.mddoc · 4,056 bytes
reference/scenarios/web-llm/insecure-output-xss.mddoc · 4,925 bytes
reference/scenarios/web-llm/os-command-injection-via-llm.mddoc · 4,271 bytes
reference/scenarios/web-llm/prompt-injection-direct.mddoc · 3,450 bytes
reference/scenarios/web-llm/prompt-injection-indirect.mddoc · 4,260 bytes
reference/scenarios/web-llm/sqli-via-llm.mddoc · 3,609 bytes
reference/scenarios/websocket/auth-bypass-and-handshake-tricks.mddoc · 3,563 bytes
reference/scenarios/websocket/authenticated-per-role-authz.mddoc · 3,406 bytes
reference/scenarios/websocket/cswsh.mddoc · 4,022 bytes
reference/scenarios/websocket/discovery-and-handshake.mddoc · 4,067 bytes
reference/scenarios/websocket/message-injection.mddoc · 7,464 bytes
reference/web-llm-attacks-resources.mddoc · 5,247 bytes
reference/websockets-resources.mddoc · 3,965 bytes

Read excerpt


# API Security

Test API endpoints for security vulnerabilities across REST, GraphQL, WebSocket, and LLM-integrated APIs.

## Techniques

| Type | Key Vectors |
|------|-------------|
| **GraphQL** | Introspection, batching attacks, nested query DoS, field suggestion |
| **REST API** | BOLA/IDOR, mass assignment, rate limiting, auth bypass, versioning |
| **WebSocket** | Cross-site hijacking, message manipulation, auth flaws |
| **Web-LLM** | Prompt injection via API, excessive agency, data exfiltration |

## Workflow