Name: common-owasp
Author: wildbitca

Imported from wildbitca/ai-resources (skills/common-owasp/SKILL.md). Install upstream with npx skills add wildbitca/ai-resources --skill common-owasp. Copyright stays with the author.

OWASP Top 10 Security Checklist

Priority: P0 (CRITICAL)

Implementation Guidelines

Check A01/API1 first: IDOR is the #1 finding in real codebases — any findById(userInput) without an owner/tenant filter is an immediate P0.
Mark each item: ✅ not affected | ⚠️ needs review | 🔴 confirmed finding.
P0 finding caps Security score at 40/100 — do not skip any item.
Apply framework-specific security skills alongside this checklist.
See references/owasp-web.md and references/owasp-api.md for full detection signals per item.

OWASP Web Application Top 10 (2021)

ID	Risk	Key Detection Signal
A01	Broken Access Control	`findById(params.id)` without owner filter. Route without `@authorize`.
A02	Cryptographic Failures	Weak hash (MD5/SHA1) for passwords. HTTP URL hardcoded. No TLS.
A03	Injection	String concat in DB queries. Unsanitized input to templates. XSS.
A04	Insecure Design	No rate limiting on auth. Missing input validation at entry points.
A05	Security Misconfiguration	CORS `*`. Debug mode in prod. Missing security headers (CSP, HSTS).
A06	Vulnerable Components	CVE in dependency audit. Unreviewed new direct dependency.
A07	Auth Failures	JWT without expiry. No session invalidation on logout.
A08	Data Integrity Failures	Unverified JWT/cookie. Deserialization of untrusted input.
A09	Logging & Monitoring	No audit log on: deletion, password change, privilege escalation.
A10	SSRF	HTTP client with user-controlled URL and no allowlist.

OWASP API Security Top 10 (2023)

ID	Risk	Key Detection Signal
API1	Broken Object Level Auth (BOLA)	Resource by user-supplied ID without `AND owner_id = currentUser`.
API2	Broken Authentication	JWT missing `exp`. Token not revoked on logout. Bearer in URL.
API3	Broken Property Level Auth	Full ORM entity returned. No DTO projection. Mass assignment.
API4	Unrestricted Resource Consumption	No server-enforced `limit`/`pageSize`. No throttle on heavy ops.
API5	Broken Function Level Auth	Admin route reachable without role guard.
API6	Unrestricted Business Flow	No verification on OTP/checkout/password-reset flows.
API8	Security Misconfiguration	Stack trace in response. CORS `*` on authenticated routes.
API9	Improper Inventory Management	Deprecated/undocumented endpoints still reachable.
API10	Unsafe API Consumption	Third-party response used without schema validation.

Anti-Patterns

No IDOR: Filter every resource query by owner_id or tenantId alongside the user-supplied ID.
No wildcard CORS: Restrict to explicit, allowlisted origins — never * on authenticated routes.
No full entity return: Always project to a DTO — never serialize raw ORM output to the API response.

References

Install common-owasp and it becomes one more candidate the router can pick - when it fits.

A listing is a routing target with a manifest: what it does, which domains it covers, what it costs and who publishes it. Once installed it sits beside your own models and tools, is scored like any other candidate for each request, and shows up in the trace when it wins. Ratings come from workspaces that installed it, one per account.

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common-owasp

About

OWASP Top 10 Security Checklist

Priority: P0 (CRITICAL)

Implementation Guidelines

OWASP Web Application Top 10 (2021)

OWASP API Security Top 10 (2023)

Anti-Patterns

References

Install common-owasp and it becomes one more candidate the router can pick - when it fits.

Use it

Manifest

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