How does this skill detect CORS issues?

The skill analyzes provided headers or policy files against security best practices to identify dangerous misconfigurations like wildcard origins or insecure credential handling.

Will this skill help fix the identified vulnerabilities?

After providing a detailed report of the findings, you can ask Claude to generate the corrected configuration or code based on the validator's recommendations.

Can it check live URLs for CORS compliance?

Yes, you can provide an API endpoint URL, and Claude will fetch the headers and use the validator to summarize the configuration and any potential risks.

What file formats are supported for policy validation?

The skill can read and analyze common configuration formats like JSON policy files and raw HTTP header outputs.

CORS Policy Validator

Name: CORS Policy Validator
Author: intent-solutions-io

byintent-solutions-io

安全与测试

Validates and audits Cross-Origin Resource Sharing (CORS) configurations to identify security vulnerabilities and ensure compliant web access policies.

关于

The CORS Policy Validator skill enables Claude to perform automated security audits on web application access controls. By inspecting CORS headers and configuration files, it identifies common misconfigurations—such as overly permissive origins or insecure credentials settings—that could expose sensitive data to unauthorized domains. This skill is essential for developers and security engineers looking to harden their APIs and frontend applications against cross-origin attacks and ensure their services adhere to industry security best practices.

主要功能

Static validation of local CORS configuration files and JSON policies
Compliance checking against industry-standard security best practices
0 GitHub stars
Detailed security reporting on identified vulnerabilities and risks
Detection of wildcard origin abuses and insecure header implementations
Automated CORS header analysis for live API endpoints

使用场景

Auditing production API headers for potential security leaks
Validating local CORS configuration files during the development phase
Troubleshooting cross-origin request failures in web applications

关于

主要功能

Static validation of local CORS configuration files and JSON policies
Compliance checking against industry-standard security best practices
0 GitHub stars
Detailed security reporting on identified vulnerabilities and risks
Detection of wildcard origin abuses and insecure header implementations
Automated CORS header analysis for live API endpoints

使用场景

Auditing production API headers for potential security leaks
Validating local CORS configuration files during the development phase
Troubleshooting cross-origin request failures in web applications