hunt-html-injection
Hunt HTML Injection — user-supplied input is rendered as raw HTML in the response without sanitisation, allowing an attacker to inject arbitrary HTML tags (but not necessarily JavaScript). Lower severity than XSS but enables phishing, UI manipulation, and credential harvesting via injected forms. Use when testing text-display surfaces (search results, profile fields, comments, error messages, feedback forms). For markup that executes JavaScript, escalate to hunt-xss.
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Critical
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Security
1 critical severity finding. Installing this skill is not recommended: please review these findings carefully if you do intend to do so.
E006: Malicious code pattern detected in skill scripts.
What this means
Detected high-risk code patterns in the skill content — including its prompts, tool definitions, and resources — such as data exfiltration, backdoors, remote code execution, credential theft, system compromise, supply chain attacks, and obfuscation techniques.
Why it was flagged
This document provides explicit, actionable instructions for performing HTML injection/XSS attacks including phishing, credential-harvesting login forms, and escalation vectors that enable data exfiltration and active exploitation.
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 workflow is about HTML injection testing and includes explicit attacker-supplied proof payload examples (e.g., `<svg onload=...>`, `<img ... onerror=...>`), which are outsider-authored free-text strings that would be pasted into a victim page/request and could be reflected back and ingested into the agent’s LLM context via the test results/response text.
- Repository
- elementalsouls/Claude-BugHunter
- Commit
6b9c96e
- Audited
- Security analysis
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