Identifying and exploiting Cross-Origin Resource Sharing misconfigurations that allow unauthorized cross-domain data access and credential theft during security assessments.
Install
npx skills add mukul975/Anthropic-Cybersecurity-Skills --skill testing-cors-misconfigurationnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill testing-cors-misconfiguration -a claude-code -gnpx skills add mukul975/Anthropic-Cybersecurity-Skills --skill testing-cors-misconfiguration -a codex -ggemini skills install https://github.com/mukul975/Anthropic-Cybersecurity-Skills.git --path skills/testing-cors-misconfigurationgh skill install mukul975/Anthropic-Cybersecurity-Skills testing-cors-misconfigurationgit clone --depth 1 https://github.com/mukul975/Anthropic-Cybersecurity-Skills /tmp/mukul975__Anthropic-Cybersecurity-Skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/testing-cors-misconfiguration ~/.claude/skills/testing-cors-misconfiguration # Claude Code
cp -R /tmp/mukul975__Anthropic-Cybersecurity-Skills/skills/testing-cors-misconfiguration ~/.agents/skills/testing-cors-misconfiguration # Codex, Cursor, Gemini CLI, Copilot, OpenCode