Install
Works with every agent the skills CLI supports.
npx skills add https://github.com/sickn33/agentic-awesome-skills --skill web-security-testing- 01
Install
Run the command in your project. The CLI asks which agents to install for.
- 02
Describe the task
Ask your agent for something this skill covers. It loads web-security-testing automatically when relevant.
- 03
Review the result
The agent follows the SKILL.md steps, scripts and references bundled with the skill.
SKILL.md
The instructions your agent reads when the skill is triggered.
⚠️ AUTHORIZED USE ONLY This skill is for educational purposes or authorized security assessments only. You must have explicit, written permission from the system owner before using this tool. Misuse of this tool is illegal and strictly prohibited.
Web Security Testing Workflow
Overview
Specialized workflow for testing web applications against OWASP Top 10 vulnerabilities including injection attacks, XSS, broken authentication, and access control issues.
When to Use This Workflow
Use this workflow when:
- Testing web application security
- Performing OWASP Top 10 assessment
- Conducting penetration tests
- Validating security controls
- Bug bounty hunting
Mandatory confirmation gate Before running any command that probes, exploits, changes, persists on, extracts data from, or attempts credential access against a target:
- Ask the user to state the exact target URL, IP, account, or resource.
- Ask the user to confirm written authorization and the permitted scope.
- Show the exact command(s) and explain their expected effect.
- Wait for explicit confirmation in the current conversation.
Without that confirmation, remain read-only and provide defensive guidance only. Prefer a sandbox, disposable VM, or controlled lab.
Authorized assessment scope
Establish test window, request limits, excluded paths and stop conditions in addition to the mandatory per-command gate above. Bug-bounty participation alone does not authorize every listed test. Use synthetic accounts/data and non-destructive probes; credential stuffing, brute-force, stored payloads and automated scanners require explicit scope. Stop on instability or unexpected sensitive data, retain only redacted minimal evidence, and report untested areas instead of marking full coverage.
Workflow Phases
Phase 1: Reconnaissance
Skills to Invoke
scanning-tools- Security scanningtop-web-vulnerabilities- OWASP knowledge
Actions
- Map application surface
- Identify technologies
- Discover endpoints
- Find subdomains
- Document findings
Copy-Paste Prompts
Use @scanning-tools to perform web application reconnaissance
Phase 2: Injection Testing
Skills to Invoke
sql-injection-testing- SQL injectionsqlmap-database-pentesting- SQLMap
Actions
- Test SQL injection
- Test NoSQL injection
- Test command injection
- Test LDAP injection
- Document vulnerabilities
Copy-Paste Prompts
Use @sql-injection-testing to test for SQL injection
Use @sqlmap-database-pentesting to automate SQL injection testing
Phase 3: XSS Testing
Skills to Invoke
xss-html-injection- XSS testinghtml-injection-testing- HTML injection
Actions
- Test reflected XSS
- Test stored XSS
- Test DOM-based XSS
- Test XSS filters
- Document findings
Copy-Paste Prompts
Use @xss-html-injection to test for cross-site scripting
Phase 4: Authentication Testing
Skills to Invoke
broken-authentication- Authentication testing
Actions
- Test credential stuffing
- Test brute force protection
- Test session management
- Test password policies
- Test MFA implementation
Copy-Paste Prompts
Use @broken-authentication to test authentication security
Phase 5: Access Control Testing
Skills to Invoke
idor-testing- IDOR testingfile-path-traversal- Path traversal
Actions
- Test vertical privilege escalation
- Test horizontal privilege escalation
- Test IDOR vulnerabilities
- Test directory traversal
- Test unauthorized access
Copy-Paste Prompts
Use @idor-testing to test for insecure direct object references
Use @file-path-traversal to test for path traversal
Phase 6: Security Headers
Skills to Invoke
api-security-best-practices- Security headers
Actions
- Check CSP implementation
- Verify HSTS configuration
- Test X-Frame-Options
- Check X-Content-Type-Options
- Verify referrer policy
Copy-Paste Prompts
Use @api-security-best-practices to audit security headers
Phase 7: Reporting
Skills to Invoke
reporting-standards- Security reporting
Actions
- Document vulnerabilities
- Assess risk levels
- Provide remediation
- Create proof of concept
- Generate report
Copy-Paste Prompts
Use @reporting-standards to create security report
OWASP Top 10 (2021) Checklist
This is the 2021 taxonomy; select the edition required by the assessment and map coverage explicitly. A checklist is not proof every category was tested.
- A01: Broken Access Control
- A02: Cryptographic Failures
- A03: Injection
- A04: Insecure Design
- A05: Security Misconfiguration
- A06: Vulnerable Components
- A07: Authentication Failures
- A08: Software/Data Integrity
- A09: Logging/Monitoring
- A10: SSRF
Quality Gates
- All OWASP Top 10 tested
- Vulnerabilities documented
- Proof of concepts captured
- Remediation provided
- Report generated
Related Workflow Bundles
security-audit- Security auditingapi-security-testing- API securitywordpress-security- WordPress security
Limitations
- Use this skill only when the task clearly matches the scope described above.
- Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
- Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.
FAQ
What does the web-security-testing skill do?
Web application security testing workflow for OWASP Top 10 vulnerabilities including injection, XSS, authentication flaws, and access control issues.
How do I install web-security-testing?
Run npx skills add https://github.com/sickn33/agentic-awesome-skills --skill web-security-testing in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/web-security-testing/ (personal) or .claude/skills/web-security-testing/ (project).
Which AI agents can use web-security-testing?
Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.
Is web-security-testing safe to install?
No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.
Who maintains web-security-testing?
It is published by sickn33 in sickn33/agentic-awesome-skills. It has 870 recorded installs.
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