browser-harness

Fail

Audited by Snyk on Jul 18, 2026

Risk Level: CRITICAL
Full Analysis

CRITICAL E005: Suspicious download URL detected in skill instructions.

  • Suspicious download URL detected (high risk: 0.80). One URL is a direct link to a shell script (curl | sh) on a small/custom domain, which is a high-risk pattern for delivering malware; the other URLs are documentation, a GitHub repo, localhost debugging endpoint, social page and example.com which are not themselves download vectors.

CRITICAL E006: Malicious code pattern detected in skill scripts.

  • Malicious code pattern detected (high risk: 0.90). The skill explicitly documents connecting to and controlling a user's real browser/session, extracting login-protected content (writing it to disk), and syncing local profiles to a cloud endpoint via curl|sh, which provides clear capabilities for credential theft, data exfiltration, and remote access misuse.

MEDIUM W011: Third-party content exposure detected (indirect prompt injection risk).

  • Third-party content exposure detected (high risk: 0.75). SKILL.md instructs the agent to navigate to arbitrary URLs in the user’s real browser and then read page content via js(...)/page_info() (e.g., new_tab("https://x.com/...") then js(...innerText...)), which can include outsider-authored free text from the visited web pages into the LLM context.

Issues (3)

E005
CRITICAL

Suspicious download URL detected in skill instructions.

E006
CRITICAL

Malicious code pattern detected in skill scripts.

W011
MEDIUM

Third-party content exposure detected (indirect prompt injection risk).

Audit Metadata
Risk Level
CRITICAL
Analyzed
Jul 18, 2026, 04:27 PM
Issues
3
Security Audit — snyk — browser-harness