
Open Redirect Vulnerability Testing
Guides an agent through finding and testing open redirect bugs in web apps
- Repository
- SnailSploit/Claude-Red
- Stars
- 10,230
- Licence
- MIT
- Files
- 1 file
What it does
When active, this skill gives the agent a structured checklist for spotting open redirect flaws, where a website sends visitors to an attacker-chosen address. It covers where to look (redirect parameters, login and OAuth flows), common bypass tricks such as encoding, double slashes and domain spoofing, and how a minor redirect can be chained into bigger issues like OAuth token theft or SSRF. It is written for offensive security testing, so the agent acts as a tester working through the checklist and suggesting next steps.
Great for
- Security testers and bug bounty hunters checking web apps they are authorised to test
- Developers or students learning how redirect validation fails and how to fix it
- Security teams building a review checklist for redirect and OAuth handling
Skip it if
- Testing websites or apps you do not own or have written permission to test, since probing others' systems can be illegal and harmful
- Non-security tasks: the content is attack-oriented and offers no general redirect-building help
Try asking
- “Review https://myapp.example/login?next= for open redirect issues and suggest bypass tests I can run on my own staging site”
- “Walk me through the OAuth redirect_uri checks for my app and what a partial allowlist flaw looks like”
- “Create a checklist of redirect parameter names to audit in our codebase”
Install in 3 steps
- 1
Download the skill
The ZIP contains the 1 original files, the MIT licence and an attribution note.
offensive-open-redirect.zip - 2
Add it to your agent
Claude Code (all projects)
mkdir -p ~/.claude/skills && unzip offensive-open-redirect.zip -d ~/.claude/skills/Claude Code / Agent SDK (this project only)
mkdir -p .claude/skills && unzip offensive-open-redirect.zip -d .claude/skills/Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.
- 3
Ask for the task
No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.
Get better results
- State that you have authorisation for the target and its scope so the agent keeps tests within bounds
- Paste the specific endpoint or code snippet so the agent can judge which techniques apply
- Ask for remediation alongside findings, such as strict allowlists and exact redirect_uri matching
What's inside
- SKILL.md
Redistributed unmodified from SnailSploit/Claude-Red under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.