setup-browser-cookies
Import cookies from your real Chromium browser into the headless browse session. Opens an interactive picker UI where you select which cookie domains to import. Use before QA testing authenticated pages. Use when asked to "import cookies", "login to the site", or "authenticate the browser". (gstack)
Security
2 findings — 1 critical severity, 1 medium 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
Potential prompt injection detected (high risk: 0.90). The skill embeds many explicit but out-of-scope operational instructions (telemetry/analytics, artifact sync that can publish to GitHub, automated edits/commits to CLAUDE.md, vendoring migration, config changes and prompts) that go far beyond "import browser cookies" and instruct the agent to alter project state or opt into data sharing, so it contains deceptive/out-of-scope instructions acting as a prompt injection.
W012: Unverifiable external dependency detected (runtime URL that controls agent)
What this means
The skill fetches instructions or code from an external URL at runtime, and the fetched content directly controls the agent’s prompts or executes code. This dynamic dependency allows the external source to modify the agent’s behavior without any changes to the skill itself.
Why it was flagged
Potentially malicious external URL detected (high risk: 1.00). The skill includes a runtime setup path that downloads and executes a remote installer script via curl -fsSL "https://bun.sh/install" -o "$tmpfile" followed by bash "$tmpfile", which fetches and runs remote code during skill execution.
- Repository
- garrytan/gstack
- Commit
7b4738b
- Audited
- Security analysis
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