Validate shell builtins against GTFOBins attack patterns to ensure exploits are blocked by the sandbox
73
67%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Advisory
Suggest reviewing before use
Optimize this skill with Tessl
npx tessl skill review --optimize ./.claude/skills/gtfobins-validate/SKILL.mdSecurity
1 medium severity finding. This skill can be installed but you should review these findings before use.
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.
Third-party content exposure detected (high risk: 0.90). The skill's required workflow (SKILL.md Step 2) explicitly fetches and parses GTFOBins pages from the public site https://gtfobins.org/gtfobins/<command>/ (and fallback offline files in resources/gtfobins/<command>.md), causing the agent to read untrusted, public user-contributed content that directly informs test-generation and decision-making.
729dfbb
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