Hunt CORS Misconfigurations

Hunt CORS Misconfigurations is a Quality skill for Claude Code, published by elementalsouls in Claude-BugHunter.

3.6K stars559 forkson elementalsouls/Claude-BugHunterAdded 2026/08/16+3% in starsRepository updated 2026/08/16

ai-securityanthropicapplication-securitybug-bountybugbountybugcrowdclaudeclaude-codeclaude-skillsethical-hackinghackeroneoffensive-securitypentestingred-teamsecurity-toolsweb-security

Install in seconds

Install Hunt CORS Misconfigurations

Copy Hunt CORS Misconfigurations into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/elementalsouls/Claude-BugHunter/tree/main/skills/hunt-cors ~/.claude/skills/hunt-cors

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/elementalsouls/Claude-BugHunter.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/hunt-cors/SKILL.md in elementalsouls/Claude-BugHunter
Installs to: ~/.claude/skills/hunt-cors
Collection: One of 25 skills cataloged from this repository
Category: Quality — 1354 skills

What Hunt CORS Misconfigurations does

Hunt CORS Misconfigurations probes CORS headers and browser behavior to find credentialed cross-origin read flaws, including origin reflection with credentials, null-origin trust, and subdomain regex bypass. Use it when testing API endpoints, SPAs, or any app emitting Access-Control-* headers.

Hunt CORS Misconfigurations is cataloged under Quality on DirSkills. Hunt CORS Misconfigurations comes from a repository tagged ai-security, anthropic, application-security, bug-bounty and bugbounty.

Documentation

README

Excerpt

What actually pays (and what does not)

CORS pays High only when an attacker-controlled origin can perform a credentialed cross-origin read of sensitive authenticated data, and you have a browser PoC proving the response body is readable from evil.com.

Two hard browser rules that kill most "findings" — check these FIRST:

This is the opening of the README. Read the full README on GitHub.

Commands Hunt CORS Misconfigurations provides

Slash commands named in this skill’s SKILL.md, listed in the order they first appear.

/redirect
/graphql

Frequently asked about Hunt CORS Misconfigurations

What else does elementalsouls publish alongside Hunt CORS Misconfigurations?
Hunt CORS Misconfigurations is one of 25 skills that DirSkills catalogs from elementalsouls/Claude-BugHunter, the repository it ships in. Its siblings there include API Misconfig Hunter, APK Red Team Pipeline and Auth Bypass Hunting. Each one is a separate skill with its own page in this directory, installs the same way Hunt CORS Misconfigurations does, and is maintained by elementalsouls in that same repository. The rest of the collection is listed on the elementalsouls/Claude-BugHunter page.
How does Hunt CORS Misconfigurations compare to other Quality skills?
Hunt CORS Misconfigurations ranks #380 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Hunt CORS Misconfigurations against them. Open each page to compare what they document and how they install.