test-security

name	test-security
description	Run OWASP+ security vulnerability testing on a URL. Use when user wants to test security, find XSS, SQL injection, check headers, CSRF, authentication security, or data exposure.
allowed-tools	Bash(playwright-cli:*) Bash(npx:*) Bash(mkdir:*)

Security Vulnerability Testing (OWASP+)

Run 55 security test cases across 5 parallel agents covering injection attacks, HTTP security headers, authentication security, data exposure, and client-side vulnerabilities.

Authorization context: This skill is designed for authorized security testing — pentesting engagements, security audits, and development/staging environments. Always test only URLs you own or have explicit permission to test.

Setup

URL="${ARGUMENTS:-http://localhost:3000}"
TIMESTAMP=$(date +%Y%m%d-%H%M%S)
OUTDIR="test-results/test-security/$TIMESTAMP"
mkdir -p "$OUTDIR/screenshots" "$OUTDIR/snapshots" "$OUTDIR/traces"

Parallel Execution — 5 Subagents

Agent 1: Injection (-s=sec-injection)

Tests injection vulnerabilities across all input vectors.

playwright-cli -s=sec-injection open "$URL"
playwright-cli -s=sec-injection tracing-start
playwright-cli -s=sec-injection snapshot --filename="$OUTDIR/snapshots/injection-initial.yaml"

Test Cases:

TC	Test	How to Check
TC-S1	Reflected XSS in inputs + URL params	Fill every input with <script>alert(1)</script>, submit, check if script appears unescaped in DOM. Also test URL params: ?q=<script>alert(1)</script>
TC-S2	Stored XSS	Submit XSS payload, reload page, run-code to check for script execution or unescaped payload in DOM
TC-S3	DOM-based XSS	Navigate to URL#<img onerror=alert(1) src=x>, check DOM. Try javascript: in URL inputs
TC-S4	SVG XSS	If file upload exists: attempt upload with SVG containing <svg onload=alert(1)>. Also test <svg> in text inputs
TC-S5	SQL injection	Fill inputs with ' OR 1=1--, '; DROP TABLE users--, ' UNION SELECT null--, check for database errors or unexpected data
TC-S6	NoSQL injection	If JSON-based forms: test {"$gt": ""}, {"$ne": null} patterns via run-code with fetch API
TC-S7	Command injection	Fill inputs with ; ls, `whoami`, $(cat /etc/passwd), check for command output in response
TC-S8	HTML injection	Fill inputs with <h1>injected</h1>, <iframe src=evil.com>, verify HTML is escaped in output
TC-S9	LDAP/XPath injection	Fill inputs with *)(objectClass=*, ' or '1'='1, check for errors
TC-S10	Template injection	Fill inputs with {{7*7}}, ${7*7}, <%= 7*7 %>, check if output shows 49

playwright-cli -s=sec-injection tracing-stop
playwright-cli -s=sec-injection close

Agent 2: Headers (-s=sec-headers)

Tests HTTP security headers and TLS configuration.

playwright-cli -s=sec-headers open "$URL"
playwright-cli -s=sec-headers tracing-start

Test Cases:

Use run-code with fetch(url) to inspect response headers, or playwright-cli network after page load.

TC	Test	How to Check
TC-S11	Content-Security-Policy present + configured	run-code to fetch and check CSP header exists, has script-src, style-src, default-src
TC-S12	X-Frame-Options or CSP frame-ancestors	Check for X-Frame-Options: DENY/SAMEORIGIN or CSP frame-ancestors directive
TC-S13	X-Content-Type-Options: nosniff	Check header present and value is nosniff
TC-S14	Strict-Transport-Security (HSTS)	Check for HSTS header with includeSubDomains and reasonable max-age (≥31536000)
TC-S15	Referrer-Policy	Check for no-referrer, strict-origin, or strict-origin-when-cross-origin
TC-S16	Permissions-Policy	Check header restricts camera, microphone, geolocation
TC-S17	X-XSS-Protection	Check header present (legacy but still checked)
TC-S18	Cache-Control on sensitive pages	Check no-store or no-cache on pages with forms/auth
TC-S19	HTTPS enforcement	run-code to try HTTP URL, verify redirect to HTTPS
TC-S20	Mixed content	run-code to find any HTTP resources loaded on HTTPS page (scripts, images, stylesheets)
TC-S21	CORS headers properly scoped	Check Access-Control-Allow-Origin is not * on authenticated endpoints
TC-S22	Server header removed/generic	Check Server header doesn't expose version info (e.g., Apache/2.4.51)

playwright-cli -s=sec-headers tracing-stop
playwright-cli -s=sec-headers close

Agent 3: Auth (-s=sec-auth)

Tests authentication and session security.

playwright-cli -s=sec-auth open "$URL"
playwright-cli -s=sec-auth tracing-start

Test Cases:

TC	Test	How to Check
TC-S23	CSRF tokens on state-changing forms	run-code to find forms with POST method, check for hidden CSRF token field
TC-S24	CSRF token changes per session/request	Load page twice in different sessions, compare CSRF tokens
TC-S25	Session cookie flags	cookie-list and check session cookies for HttpOnly, Secure, SameSite flags
TC-S26	Session ID changes after login	Record session ID before login, login, compare session ID after
TC-S27	Logout invalidates session	Login, save session cookie, logout, try using saved cookie, verify rejected
TC-S28	Password field uses type="password"	run-code to find password fields, verify type="password"
TC-S29	Login form served over HTTPS	Check login page URL starts with https://
TC-S30	No user enumeration	Try login with invalid user vs invalid password, compare error messages — should be identical
TC-S31	Account lockout after N failed attempts	Attempt 5+ failed logins, check if account locks or rate limits
TC-S32	Password policy enforced	Try weak passwords ("123", "password", "a"), verify rejection
TC-S33	No autocomplete on sensitive fields	run-code to check autocomplete="off" or autocomplete="new-password" on password/CC fields
TC-S34	JWT not stored in localStorage	localstorage-list and check for JWT tokens (long base64 strings with two dots)
TC-S35	OAuth redirect_uri validated	If OAuth present: try redirect_uri=https://evil.com, verify rejected

playwright-cli -s=sec-auth tracing-stop
playwright-cli -s=sec-auth close

Agent 4: Data (-s=sec-data)

Tests data exposure and privacy issues.

playwright-cli -s=sec-data open "$URL"
playwright-cli -s=sec-data tracing-start

Test Cases:

TC	Test	How to Check
TC-S36	Sensitive data in URLs	Check current URL and all links for tokens, passwords, SSN patterns in query strings
TC-S37	Sensitive data in localStorage/sessionStorage	localstorage-list and sessionstorage-list, look for PII, tokens, passwords
TC-S38	API keys/secrets in page source or JS	run-code to get page HTML and inline scripts, regex for API key patterns (sk_, api_key, secret)
TC-S39	Source maps in production	run-code to check for .map references in loaded scripts, try fetching them
TC-S40	Stack traces/debug info in errors	Trigger 404/500 errors, check response for stack traces, file paths, debug info
TC-S41	Directory listing enabled	Navigate to /uploads/, /api/, /static/, check for directory listing
TC-S42	Server version in headers/errors	Check Server, X-Powered-By headers for version numbers
TC-S43	Sensitive files accessible	Try fetching /.env, /.git/config, /package.json, /wp-config.php, check if accessible
TC-S44	PII in HTML comments	run-code to extract all HTML comments, check for emails, phone numbers, internal notes
TC-S45	Credit card/SSN fields autofill exclusion	Check autocomplete="off" on CC/SSN fields

playwright-cli -s=sec-data tracing-stop
playwright-cli -s=sec-data close

Agent 5: Client (-s=sec-client)

Tests client-side security vulnerabilities.

playwright-cli -s=sec-client open "$URL"
playwright-cli -s=sec-client tracing-start

Test Cases:

TC	Test	How to Check
TC-S46	Open redirects	Navigate to ?redirect=https://evil.com, ?next=//evil.com, verify no redirect to external domain
TC-S47	Clickjacking protection	Verify X-Frame-Options header or CSP frame-ancestors prevents embedding in iframe
TC-S48	Window.opener vulnerability	run-code to find external links without rel="noopener noreferrer"
TC-S49	Insecure postMessage	run-code to find addEventListener('message') handlers, check if origin is validated
TC-S50	eval()/innerHTML with user input	run-code to search page scripts for eval(, innerHTML =, document.write( patterns
TC-S51	Subresource integrity (SRI) on CDN scripts	run-code to find external scripts from CDNs, check for integrity attribute
TC-S52	Outdated JS libraries	run-code to detect library versions (jQuery, Bootstrap, Angular, React), flag known vulnerable versions
TC-S53	WebSocket security	run-code to find WebSocket connections, verify wss:// not ws://
TC-S54	File upload without validation	If file upload exists: try uploading .html, .svg, .exe files
TC-S55	Content-Disposition on downloads	Click download links, check Content-Disposition: attachment header via run-code with fetch

playwright-cli -s=sec-client tracing-stop
playwright-cli -s=sec-client close

Report Generation

After all 5 agents complete, merge results into $OUTDIR/report.md following the standard report format.

Security findings should be grouped by severity:

1. Critical: Active exploitable vulnerabilities (XSS, SQL injection, open redirect)
2. Major: Missing security controls (no CSP, no CSRF tokens, weak session management)
3. Minor: Best practice deviations (missing SRI, no X-XSS-Protection, verbose server header)
4. Info: Recommendations (version updates, configuration improvements)

Cleanup

playwright-cli -s=sec-injection close 2>/dev/null
playwright-cli -s=sec-headers close 2>/dev/null
playwright-cli -s=sec-auth close 2>/dev/null
playwright-cli -s=sec-data close 2>/dev/null
playwright-cli -s=sec-client close 2>/dev/null