broken-authentication
Identify and exploit authentication and session management vulnerabilities in web applications. Broken authentication consistently ranks in the OWASP Top 10 and can lead to account takeover, identity theft, and unauthorized access to sensitive systems.
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High
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tessl review fix ./plugins/antigravity-awesome-skills/skills/broken-authentication/SKILL.mdW007: 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 explicitly instructs capturing and then embedding secrets verbatim (passwords, session cookies, JWTs, reset tokens, Authorization headers) into requests/commands and even shows literal token/password examples, which requires the LLM to handle/output secret values directly and creates exfiltration risk.
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.md core workflow explicitly instructs the agent to fetch and parse live responses from target web applications (e.g., Phase 6 requests.get("https://target.com/login") to collect session cookies, Phase 3 API response examples like {"error":"user_not_found"}, and Phase 10 password-reset link capture), which are untrusted third‑party web content and are read/used to drive subsequent testing actions.
- Repository
- popey/claude-code-skills
- Commit
a5a6601
- Audited
- Security analysis
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