hunt-oauth
Hunting skill for oauth vulnerabilities. Built from 19 public bug bounty reports. Use when hunting oauth on any target.
56
65%
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Critical
Do not install without reviewing
Fix and improve this skill with Tessl
tessl review fix ./skills/hunt-oauth/SKILL.mdSecurity
2 findings: 1 critical severity, 1 high severity. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E004: Prompt injection detected in skill instructions.
What this means
Detected a prompt injection in the skill instructions. The skill contains hidden or deceptive instructions that fall outside its stated purpose and attempt to override the agent’s safety guidelines or intended behavior.
Why it was flagged
The document contains explicit, actionable exploit instructions and payloads for stealing OAuth tokens and achieving account takeover, i.e., clearly malicious exploit guidance.
W007: Insecure credential handling detected in skill instructions.
What this means
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
Why it was flagged
The skill contains multiple examples and instructions that capture, reuse, or embed client_secrets, passwords, and access tokens directly in curl commands and scripts (e.g., posting client_secret, using password=value, and reusing $TOKEN in Authorization headers), which requires the LLM/agent to handle and output secret values verbatim.
Low
Low-risk findings.
1 low severity finding. Worth noting, but not necessarily harmful.
W011: Third-party content exposure detected (indirect prompt injection risk).
What this means
The skill exposes the agent to untrusted, user-generated content from public third-party sources, creating a risk of indirect prompt injection. This includes browsing arbitrary URLs, reading social media posts or forum comments, and analyzing content from unknown websites.
Why it was flagged
The skill’s runtime path is described as a vulnerability-hunting methodology over arbitrary target web/app assets (e.g., “Spider the app”, “Decompile mobile APKs”, “Check .well-known”, “In Burp history”) rather than ingestion of outsider-authored free text from a queue/feed or ticket/email/support/chat source without selecting a specific item.
- Repository
- elementalsouls/Claude-BugHunter
- Commit
a3ea443
- Audited
- Security analysis
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