Can I use this to test live API endpoints?

Yes, by providing a URL, the skill can fetch live headers and analyze the actual CORS policy being served by the server.

Does it provide code to fix the vulnerabilities?

Yes, the skill generates detailed remediation reports that include prioritized issues and specific code examples to correct the configuration.

Which security standards does the validator follow?

The validator aligns with industry security standards and best practices from organizations like OWASP, CWE, and CVE.

What specific CORS issues can this skill detect?

It identifies misconfigurations like insecure wildcards, reflection of origin headers, sensitive header exposure, and improper handling of the Access-Control-Allow-Credentials header.

CORS Policy Validator

Name: CORS Policy Validator
Author: BbgnsurfTech

byBbgnsurfTech

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Seguridad y Pruebas

Audits and validates Cross-Origin Resource Sharing (CORS) configurations to identify security vulnerabilities and misconfigurations.

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The CORS Policy Validator skill empowers Claude to perform deep security assessments of your web application's cross-origin policies. It analyzes policy files and live API headers against industry-standard security best practices to detect risky configurations, such as overly permissive wildcards or credential leakage. This skill is essential during the development and auditing phases to ensure that external domains interact safely with your resources without exposing sensitive data, providing prioritized remediation steps for any discovered issues.

Características Principales

Identification of high-risk settings like wildcard origins with credentials
Detailed security reporting with specific remediation code examples
Automated analysis of local CORS configuration files and policy definitions
3 GitHub stars
Live header validation for remote API endpoints and web services
Heuristic analysis to detect subtle cross-origin vulnerabilities

Casos de Uso

Debugging complex cross-origin errors during local development
Performing periodic security reviews of public API endpoints for compliance
Auditing a web application's CORS policy before deploying to production

Acerca de

Características Principales

Identification of high-risk settings like wildcard origins with credentials
Detailed security reporting with specific remediation code examples
Automated analysis of local CORS configuration files and policy definitions
3 GitHub stars
Live header validation for remote API endpoints and web services
Heuristic analysis to detect subtle cross-origin vulnerabilities

Casos de Uso

Debugging complex cross-origin errors during local development
Performing periodic security reviews of public API endpoints for compliance
Auditing a web application's CORS policy before deploying to production