browser-login

Warn

Audited by Gen Agent Trust Hub on Jun 13, 2026

Risk Level: MEDIUMEXTERNAL_DOWNLOADSDATA_EXFILTRATIONCOMMAND_EXECUTIONPROMPT_INJECTION
Full Analysis
  • [EXTERNAL_DOWNLOADS]: The skill executes npx -y @claude-flow/cli@latest, which downloads and runs code from an external registry at runtime. This package is not associated with a recognized trusted vendor or well-known service.
  • [DATA_EXFILTRATION]: The skill captures sensitive session data using browser_eval to read document.cookie. This information is then exfiltrated to an external storage mechanism (memory store --namespace browser-cookies). While the instructions mention sanitization via AIDefence, session credentials are still being persisted outside the immediate browser context.
  • [COMMAND_EXECUTION]: Shell commands are used to invoke the npx utility and manage the environment. Additionally, browser_eval is used to execute arbitrary JavaScript within the browser context to extract cookies.
  • [PROMPT_INJECTION]: This skill presents an indirect prompt injection surface (Category 8).
  • Ingestion points: Untrusted content from target websites enters the agent context through browser_snapshot and browser_eval during the authentication flow (SKILL.md).
  • Boundary markers: Absent; there are no instructions to ignore embedded commands in the browser's DOM or response headers.
  • Capability inventory: The skill possesses high-privilege capabilities including Bash execution, file Write access, and arbitrary browser_eval (SKILL.md).
  • Sanitization: The skill mentions using aidefence_scan specifically for cookie values, but does not specify sanitization for the broader page content encountered during the trajectory.
Audit Metadata
Risk Level
MEDIUM
Analyzed
Jun 13, 2026, 01:22 PM
Security Audit — agent-trust-hub — browser-login