Web Scraper Toolkit — the complete, unedited output of the deterministic mcptrustchecker engine v1.9.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.9.0",
"methodologyVersion": "mcptrustchecker-1.9"
},
"target": {
"id": "web-scraper-toolkit",
"source": {
"kind": "package",
"origin": "web-scraper-toolkit"
},
"server": {
"name": "web-scraper-toolkit"
}
},
"grade": "A",
"score": {
"score": 93,
"threatScore": 100,
"grade": "A",
"band": "A",
"categorySubtotals": {
"injection": 0,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "client",
"term": "capability-exposure",
"level": "high",
"label": "capability blast radius (high) — client exposure if the model is manipulated",
"appliedPenalty": 6
},
{
"kind": "client",
"term": "verification-discount",
"level": "repo",
"label": "publisher verification (public source) — no provenance, but the source is public and inspectable",
"appliedPenalty": 1
},
{
"kind": "client",
"term": "coverage-honesty",
"level": "source",
"label": "inspection depth (source) — how much of the target the scan could see",
"appliedPenalty": 0
}
],
"gatesFired": [],
"methodologyVersion": "mcptrustchecker-1.9"
},
"capability": {
"level": "high",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"reads sensitive or local data",
"has a read → egress path (a data-exfiltration surface)",
"can execute shell commands or code"
],
"tags": [
"sensitive-source",
"untrusted-input",
"code-exec"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (62 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command \"npx -y <package>\"."
]
},
"findings": [
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (src/web_scraper_toolkit/core/script_diagnostics.py)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`src/web_scraper_toolkit/core/script_diagnostics.py:259`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "src/web_scraper_toolkit/core/script_diagnostics.py"
},
"evidence": "r() completed = subprocess.run( command, cwd=str(self.project_root), text=Tr",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "src/web_scraper_toolkit/core/script_diagnostics.py",
"line": 259,
"nonRuntime": false
}
},
{
"ruleId": "MTC-SRC-003",
"title": "Hardcoded egress to an external endpoint in packaging/dev tooling (tests/test_playwright_manager.py)",
"category": "exfiltration",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tests/test_playwright_manager.py:301`): A hardcoded outbound call to a fixed external host inside server code is a classic exfiltration/telemetry channel — especially paired with reads of local data. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "tests/test_playwright_manager.py"
},
"evidence": "e( pm.smart_fetch(\"https://pressrelease.com/files/example.docx\") ) self.assertIsNone(conten",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"data": {
"rule": "MTC-SRC-003",
"file": "tests/test_playwright_manager.py",
"line": 301,
"nonRuntime": true
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in packaging/dev tooling (tests/test_challenge_fixture_replay.py)",
"category": "permissions",
"severity": "low",
"confidence": "heuristic",
"description": "In a packaging/dev/install script (shipped, but not the server runtime) (`tests/test_challenge_fixture_replay.py:46`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.",
"remediation": "Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.",
"location": {
"kind": "server",
"name": "tests/test_challenge_fixture_replay.py"
},
"evidence": ", ] completed = subprocess.run( command, cwd=str(PROJECT_ROOT), text=True, captu",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "tests/test_challenge_fixture_replay.py",
"line": 46,
"nonRuntime": true
}
},
{
"ruleId": "MTC-SUP-012",
"title": "Package has no license",
"category": "hygiene",
"severity": "info",
"confidence": "strong",
"description": "\"web-scraper-toolkit\" has no declared license. This is a legal/reuse concern, not a security finding.",
"location": {
"kind": "package",
"name": "web-scraper-toolkit"
}
}
],
"toxicFlows": [],
"capabilities": [
{
"tool": "configure_scraper",
"tags": [],
"reasons": {}
},
{
"tool": "configure_stealth",
"tags": [],
"reasons": {}
},
{
"tool": "configure_runtime",
"tags": [],
"reasons": {}
},
{
"tool": "reload_runtime_config",
"tags": [],
"reasons": {}
},
{
"tool": "get_config",
"tags": [],
"reasons": {}
},
{
"tool": "get_host_profiles",
"tags": [],
"reasons": {}
},
{
"tool": "clear_host_profile",
"tags": [],
"reasons": {}
},
{
"tool": "set_host_profile",
"tags": [],
"reasons": {}
},
{
"tool": "configure_host_learning",
"tags": [],
"reasons": {}
},
{
"tool": "configure_retry",
"tags": [],
"reasons": {}
},
{
"tool": "start_job",
"tags": [],
"reasons": {}
},
{
"tool": "poll_job",
"tags": [],
"reasons": {}
},
{
"tool": "cancel_job",
"tags": [],
"reasons": {}
},
{
"tool": "list_jobs",
"tags": [],
"reasons": {}
},
{
"tool": "clear_cache",
"tags": [],
"reasons": {}
},
{
"tool": "get_cache_stats",
"tags": [],
"reasons": {}
},
{
"tool": "clear_session",
"tags": [],
"reasons": {}
},
{
"tool": "new_session",
"tags": [],
"reasons": {}
},
{
"tool": "list_sessions",
"tags": [],
"reasons": {}
},
{
"tool": "get_history",
"tags": [],
"reasons": {}
},
{
"tool": "clear_history",
"tags": [],
"reasons": {}
},
{
"tool": "run_playbook",
"tags": [],
"reasons": {}
},
{
"tool": "browser_navigate",
"tags": [],
"reasons": {}
},
{
"tool": "browser_click",
"tags": [],
"reasons": {}
},
{
"tool": "browser_type",
"tags": [],
"reasons": {}
},
{
"tool": "browser_wait_for",
"tags": [],
"reasons": {}
},
{
"tool": "browser_press_key",
"tags": [],
"reasons": {}
},
{
"tool": "browser_scroll",
"tags": [],
"reasons": {}
},
{
"tool": "browser_hover",
"tags": [],
"reasons": {}
},
{
"tool": "browser_get_interaction_map",
"tags": [],
"reasons": {}
},
{
"tool": "browser_accessibility_tree",
"tags": [],
"reasons": {}
},
{
"tool": "browser_screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "browser_read_page",
"tags": [],
"reasons": {}
},
{
"tool": "browser_solve_challenge",
"tags": [],
"reasons": {}
},
{
"tool": "browser_evaluate",
"tags": [],
"reasons": {}
},
{
"tool": "browser_get_elements",
"tags": [],
"reasons": {}
},
{
"tool": "browser_close",
"tags": [],
"reasons": {}
},
{
"tool": "chunk_text",
"tags": [],
"reasons": {}
},
{
"tool": "get_token_count",
"tags": [
"sensitive-source"
],
"reasons": {
"sensitive-source": [
"keyword \"get_token\""
]
}
},
{
"tool": "truncate_text",
"tags": [],
"reasons": {}
},
{
"tool": "run_challenge_diagnostic",
"tags": [],
"reasons": {}
},
{
"tool": "run_bot_surface_diagnostic",
"tags": [],
"reasons": {}
},
{
"tool": "run_browser_info_diagnostic_tool",
"tags": [],
"reasons": {}
},
{
"tool": "get_sitemap",
"tags": [],
"reasons": {}
},
{
"tool": "crawl_site",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"crawl\""
]
}
},
{
"tool": "extract_contacts",
"tags": [],
"reasons": {}
},
{
"tool": "batch_contacts",
"tags": [],
"reasons": {}
},
{
"tool": "extract_links",
"tags": [],
"reasons": {}
},
{
"tool": "search_web",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"web_search\""
]
}
},
{
"tool": "deep_research",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"crawl\""
]
}
},
{
"tool": "fill_form",
"tags": [],
"reasons": {}
},
{
"tool": "extract_tables",
"tags": [],
"reasons": {}
},
{
"tool": "click_element",
"tags": [],
"reasons": {}
},
{
"tool": "health_check",
"tags": [],
"reasons": {}
},
{
"tool": "validate_url",
"tags": [],
"reasons": {}
},
{
"tool": "detect_content_type",
"tags": [],
"reasons": {}
},
{
"tool": "download_file",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"download\""
]
}
},
{
"tool": "scrape_url",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"scrape\""
]
}
},
{
"tool": "batch_scrape",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"scrape\""
]
}
},
{
"tool": "screenshot",
"tags": [],
"reasons": {}
},
{
"tool": "save_pdf",
"tags": [],
"reasons": {}
},
{
"tool": "get_metadata",
"tags": [],
"reasons": {}
}
],
"surfaceDigest": "40f813ebca3030167c8ed25d09c21e90028aac7b9eb3786907485601771ff319",
"stats": {
"tools": 62,
"prompts": 0,
"resources": 0,
"findingsBySeverity": {
"critical": 0,
"high": 1,
"medium": 0,
"low": 2,
"info": 1
}
}
}