Scribus — the complete, unedited output of the deterministic mcptrustchecker engine v1.13.0, scanned . Every finding, capability tag and score component below is exactly what the engine produced — no AI, no post-processing.
{
"tool": {
"name": "mcptrustchecker",
"version": "1.13.0",
"methodologyVersion": "mcptrustchecker-1.13"
},
"target": {
"id": "scribus-mcp",
"source": {
"kind": "package",
"origin": "scribus-mcp"
},
"server": {
"name": "scribus-mcp"
}
},
"grade": "B",
"score": {
"score": 87,
"threatScore": 94,
"grade": "B",
"band": "B",
"categorySubtotals": {
"injection": 6.3,
"exfiltration": 0,
"permissions": 0,
"supply-chain": 0,
"network": 0,
"hygiene": 0
},
"vector": [
{
"kind": "threat",
"ruleId": "MTC-INJ-SCHEMA-1",
"category": "injection",
"severity": "medium",
"confidence": "strong",
"rawWeight": 9,
"confidenceMult": 0.7,
"diminishingFactor": 1,
"appliedPenalty": 6.3
},
{
"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-1.13"
},
"capability": {
"level": "high",
"reasons": [
"ingests untrusted external content (a prompt-injection entry point)",
"can create, modify or delete files",
"can execute shell commands or code"
],
"tags": [
"code-exec",
"file-write",
"untrusted-input"
]
},
"coverage": {
"level": "source",
"inputs": {
"toolSurface": true,
"implementationSource": true,
"packageMetadata": true,
"liveTransport": false
},
"caveats": [
"Tools were statically extracted from the published source (175 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-CAP-001",
"title": "Tool \"run_script\" exposes command/code execution",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "Tool \"run_script\" appears to run shell commands or evaluate code (keyword \"run_script\" in tool name). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.",
"remediation": "Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.",
"location": {
"kind": "tool",
"name": "run_script"
},
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-SRC-002",
"title": "Shell/command execution in server code (src/scribus_mcp/backends/_launcher.py)",
"category": "permissions",
"severity": "high",
"confidence": "strong",
"description": "In the server's implementation (`src/scribus_mcp/backends/_launcher.py:100`): 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/scribus_mcp/backends/_launcher.py"
},
"evidence": "try: result = subprocess.run( [scribus_bin, \"-v\"], capture_output=True, te",
"owasp": "LLM05:2025 Improper Output Handling",
"data": {
"rule": "MTC-SRC-002",
"file": "src/scribus_mcp/backends/_launcher.py",
"line": 100,
"nonRuntime": false
}
},
{
"ruleId": "MTC-FLOW-005",
"title": "Untrusted input can drive an external action",
"category": "exfiltration",
"severity": "medium",
"confidence": "strong",
"description": "Untrusted-input tools ([get_page_count, get_page_size, get_page_margins]) co-exist with external-action tools ([run_script]). A prompt injection could cause unwanted external actions, though no direct sensitive-data leak path was found.",
"remediation": "Require confirmation for state-changing/egress actions triggered after processing untrusted content.",
"location": {
"kind": "flow",
"name": "get_page_count → run_script"
},
"evidence": "untrusted [get_page_count, get_page_size, get_page_margins] → sinks [run_script]",
"owasp": "LLM06:2025 Excessive Agency",
"references": [],
"data": {
"untrusted": [
"get_page_count",
"get_page_size",
"get_page_margins"
],
"sinks": [
"run_script"
]
}
},
{
"ruleId": "MTC-INJ-SCHEMA-1",
"title": "Description names a credential store the tool cannot reach",
"category": "injection",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"list_extra_font_dirs\" describes a credential store (SSH keys, cloud credentials, a keychain or an equivalent) that nothing in its input schema can address. A tool's interface is the honest statement of what it touches; prose that reaches past it is addressed to the model, not to a reader.",
"remediation": "Remove the reference, or expose the target as an explicit, validated parameter so the client can see and consent to what the tool reads.",
"location": {
"kind": "tool",
"name": "list_extra_font_dirs",
"field": "description"
},
"evidence": "%APPDATA%",
"owasp": "LLM02:2025 Sensitive Information Disclosure",
"data": {}
},
{
"ruleId": "MTC-CAP-002",
"title": "Tool \"create_file_annotation\" can modify the filesystem",
"category": "permissions",
"severity": "medium",
"confidence": "strong",
"description": "Tool \"create_file_annotation\" can write, overwrite or delete files (keyword \"create_file\" in tool name). Verify it is scoped to a safe directory.",
"remediation": "Constrain file operations to an explicit, non-sensitive root; reject path traversal.",
"location": {
"kind": "tool",
"name": "create_file_annotation"
},
"data": {
"tags": [
"file-write"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"run_script\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"run_script\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "run_script"
},
"data": {
"tags": [
"code-exec"
]
}
},
{
"ruleId": "MTC-CAP-005",
"title": "Mutating tool \"create_file_annotation\" declares no destructiveHint",
"category": "hygiene",
"severity": "low",
"confidence": "heuristic",
"description": "Tool \"create_file_annotation\" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.",
"remediation": "Declare accurate annotations, and gate destructive tools on user confirmation regardless.",
"location": {
"kind": "tool",
"name": "create_file_annotation"
},
"data": {
"tags": [
"file-write"
]
}
}
],
"toxicFlows": [
{
"id": "flow-1",
"severity": "medium",
"confidence": "strong",
"untrustedInput": [
"get_page_count",
"get_page_size",
"get_page_margins"
],
"sensitiveSource": [],
"externalSink": [
"run_script"
],
"selfContained": false,
"description": "Untrusted input can drive an external action even though no sensitive source is exposed."
}
],
"capabilities": [
{
"tool": "define_color_cmyk",
"tags": [],
"reasons": {}
},
{
"tool": "define_color_rgb",
"tags": [],
"reasons": {}
},
{
"tool": "list_colors",
"tags": [],
"reasons": {}
},
{
"tool": "list_palette_roles",
"tags": [],
"reasons": {}
},
{
"tool": "delete_color",
"tags": [],
"reasons": {}
},
{
"tool": "create_document",
"tags": [],
"reasons": {}
},
{
"tool": "open_document",
"tags": [],
"reasons": {}
},
{
"tool": "save_document",
"tags": [],
"reasons": {}
},
{
"tool": "save_document_as",
"tags": [],
"reasons": {}
},
{
"tool": "close_document",
"tags": [],
"reasons": {}
},
{
"tool": "get_document_info",
"tags": [],
"reasons": {}
},
{
"tool": "get_scribus_version",
"tags": [],
"reasons": {}
},
{
"tool": "has_document",
"tags": [],
"reasons": {}
},
{
"tool": "get_document_name",
"tags": [],
"reasons": {}
},
{
"tool": "revert_document",
"tags": [],
"reasons": {}
},
{
"tool": "get_unit",
"tags": [],
"reasons": {}
},
{
"tool": "set_unit",
"tags": [],
"reasons": {}
},
{
"tool": "set_document_metadata",
"tags": [],
"reasons": {}
},
{
"tool": "run_script",
"tags": [
"code-exec"
],
"reasons": {
"code-exec": [
"keyword \"run_script\" in tool name"
]
}
},
{
"tool": "export_pdf",
"tags": [],
"reasons": {}
},
{
"tool": "render_page_to_image",
"tags": [],
"reasons": {}
},
{
"tool": "preflight_check",
"tags": [],
"reasons": {}
},
{
"tool": "list_fonts",
"tags": [],
"reasons": {}
},
{
"tool": "list_fonts_detailed",
"tags": [],
"reasons": {}
},
{
"tool": "list_monospace_fonts",
"tags": [],
"reasons": {}
},
{
"tool": "get_text_frame_font",
"tags": [],
"reasons": {}
},
{
"tool": "font_is_available",
"tags": [],
"reasons": {}
},
{
"tool": "list_extra_font_dirs",
"tags": [],
"reasons": {}
},
{
"tool": "install_custom_font",
"tags": [],
"reasons": {}
},
{
"tool": "create_link_annotation",
"tags": [],
"reasons": {}
},
{
"tool": "create_uri_annotation",
"tags": [],
"reasons": {}
},
{
"tool": "create_file_annotation",
"tags": [
"file-write"
],
"reasons": {
"file-write": [
"keyword \"create_file\" in tool name"
]
}
},
{
"tool": "create_text_annotation",
"tags": [],
"reasons": {}
},
{
"tool": "is_annotated",
"tags": [],
"reasons": {}
},
{
"tool": "set_js_action",
"tags": [],
"reasons": {}
},
{
"tool": "get_js_action",
"tags": [],
"reasons": {}
},
{
"tool": "create_pdf_text_field",
"tags": [],
"reasons": {}
},
{
"tool": "create_pdf_checkbox",
"tags": [],
"reasons": {}
},
{
"tool": "create_pdf_radio_button",
"tags": [],
"reasons": {}
},
{
"tool": "create_pdf_combo_box",
"tags": [],
"reasons": {}
},
{
"tool": "create_pdf_list_box",
"tags": [],
"reasons": {}
},
{
"tool": "create_pdf_push_button",
"tags": [],
"reasons": {}
},
{
"tool": "create_text_frame",
"tags": [],
"reasons": {}
},
{
"tool": "create_image_frame",
"tags": [],
"reasons": {}
},
{
"tool": "delete_object",
"tags": [],
"reasons": {}
},
{
"tool": "move_object",
"tags": [],
"reasons": {}
},
{
"tool": "resize_object",
"tags": [],
"reasons": {}
},
{
"tool": "rotate_object",
"tags": [],
"reasons": {}
},
{
"tool": "scale_group",
"tags": [],
"reasons": {}
},
{
"tool": "is_object_locked",
"tags": [],
"reasons": {}
},
{
"tool": "set_object_locked",
"tags": [],
"reasons": {}
},
{
"tool": "get_object_name",
"tags": [],
"reasons": {}
},
{
"tool": "rename_object",
"tags": [],
"reasons": {}
},
{
"tool": "get_object_position",
"tags": [],
"reasons": {}
},
{
"tool": "get_object_size",
"tags": [],
"reasons": {}
},
{
"tool": "object_exists",
"tags": [],
"reasons": {}
},
{
"tool": "group_objects",
"tags": [],
"reasons": {}
},
{
"tool": "outline_text",
"tags": [],
"reasons": {}
},
{
"tool": "layout_text",
"tags": [],
"reasons": {}
},
{
"tool": "list_page_objects",
"tags": [],
"reasons": {}
},
{
"tool": "load_image",
"tags": [],
"reasons": {}
},
{
"tool": "get_image_file",
"tags": [],
"reasons": {}
},
{
"tool": "set_image_scale",
"tags": [],
"reasons": {}
},
{
"tool": "scale_image_to_frame",
"tags": [],
"reasons": {}
},
{
"tool": "set_image_offset",
"tags": [],
"reasons": {}
},
{
"tool": "create_layer",
"tags": [],
"reasons": {}
},
{
"tool": "delete_layer",
"tags": [],
"reasons": {}
},
{
"tool": "list_layers",
"tags": [],
"reasons": {}
},
{
"tool": "set_active_layer",
"tags": [],
"reasons": {}
},
{
"tool": "send_to_layer",
"tags": [],
"reasons": {}
},
{
"tool": "set_layer_visible",
"tags": [],
"reasons": {}
},
{
"tool": "set_layer_printable",
"tags": [],
"reasons": {}
},
{
"tool": "create_card_grid",
"tags": [],
"reasons": {}
},
{
"tool": "create_equal_columns",
"tags": [],
"reasons": {}
},
{
"tool": "create_hero_band",
"tags": [],
"reasons": {}
},
{
"tool": "create_image_caption",
"tags": [],
"reasons": {}
},
{
"tool": "create_kpi_row",
"tags": [],
"reasons": {}
},
{
"tool": "create_numbered_steps",
"tags": [],
"reasons": {}
},
{
"tool": "create_section_header",
"tags": [],
"reasons": {}
},
{
"tool": "create_sidebar_layout",
"tags": [],
"reasons": {}
},
{
"tool": "create_table_of_contents",
"tags": [],
"reasons": {}
},
{
"tool": "create_text_with_image",
"tags": [],
"reasons": {}
},
{
"tool": "create_two_column_text",
"tags": [],
"reasons": {}
},
{
"tool": "import_markdown",
"tags": [],
"reasons": {}
},
{
"tool": "add_page",
"tags": [],
"reasons": {}
},
{
"tool": "delete_page",
"tags": [],
"reasons": {}
},
{
"tool": "goto_page",
"tags": [],
"reasons": {}
},
{
"tool": "get_page_count",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"get_page\""
]
}
},
{
"tool": "get_current_page",
"tags": [],
"reasons": {}
},
{
"tool": "apply_master_page",
"tags": [],
"reasons": {}
},
{
"tool": "list_master_pages",
"tags": [],
"reasons": {}
},
{
"tool": "create_master_page",
"tags": [],
"reasons": {}
},
{
"tool": "delete_master_page",
"tags": [],
"reasons": {}
},
{
"tool": "move_page",
"tags": [],
"reasons": {}
},
{
"tool": "get_page_size",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"get_page\""
]
}
},
{
"tool": "get_page_margins",
"tags": [
"untrusted-input"
],
"reasons": {
"untrusted-input": [
"keyword \"get_page\""
]
}
},
{
"tool": "set_page_margins",
"tags": [],
"reasons": {}
},
{
"tool": "get_horizontal_guides",
"tags": [],
"reasons": {}
},
{
"tool": "set_horizontal_guides",
"tags": [],
"reasons": {}
},
{
"tool": "get_vertical_guides",
"tags": [],
"reasons": {}
},
{
"tool": "set_vertical_guides",
"tags": [],
"reasons": {}
},
{
"tool": "create_axes_strip",
"tags": [],
"reasons": {}
},
{
"tool": "create_bar_chart",
"tags": [],
"reasons": {}
},
{
"tool": "create_callout_box",
"tags": [],
"reasons": {}
},
{
"tool": "create_code_sample",
"tags": [],
"reasons": {}
},
{
"tool": "create_comparison_table",
"tags": [],
"reasons": {}
},
{
"tool": "create_dark_kpi_band",
"tags": [],
"reasons": {}
},
{
"tool": "create_dot_label",
"tags": [],
"reasons": {}
},
{
"tool": "create_numbered_badge",
"tags": [],
"reasons": {}
},
{
"tool": "create_highlight_card_row",
"tags": [],
"reasons": {}
},
{
"tool": "create_kpi_tile",
"tags": [],
"reasons": {}
},
{
"tool": "create_pie_chart",
"tags": [],
"reasons": {}
},
{
"tool": "create_pillar_strip",
"tags": [],
"reasons": {}
},
{
"tool": "create_qr_code_block",
"tags": [],
"reasons": {}
},
{
"tool": "create_radar_chart",
"tags": [],
"reasons": {}
},
{
"tool": "create_timeline",
"tags": [],
"reasons": {}
},
{
"tool": "find_and_replace_text",
"tags": [],
"reasons": {}
},
{
"tool": "find_objects",
"tags": [],
"reasons": {}
},
{
"tool": "create_rectangle",
"tags": [],
"reasons": {}
},
{
"tool": "create_ellipse",
"tags": [],
"reasons": {}
},
{
"tool": "create_line",
"tags": [],
"reasons": {}
},
{
"tool": "create_polygon",
"tags": [],
"reasons": {}
},
{
"tool": "create_polyline",
"tags": [],
"reasons": {}
},
{
"tool": "create_bezier_line",
"tags": [],
"reasons": {}
},
{
"tool": "create_path_text",
"tags": [],
"reasons": {}
},
{
"tool": "list_paragraph_styles",
"tags": [],
"reasons": {}
},
{
"tool": "list_character_styles",
"tags": [],
"reasons": {}
},
{
"tool": "apply_paragraph_style",
"tags": [],
"reasons": {}
},
{
"tool": "apply_character_style",
"tags": [],
"reasons": {}
},
{
"tool": "import_styles_from_file",
"tags": [],
"reasons": {}
},
{
"tool": "set_fill_color",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_color",
"tags": [],
"reasons": {}
},
{
"tool": "set_fill_shade",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_shade",
"tags": [],
"reasons": {}
},
{
"tool": "set_fill_transparency",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_transparency",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_width",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_style",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_cap",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_join",
"tags": [],
"reasons": {}
},
{
"tool": "set_corner_radius",
"tags": [],
"reasons": {}
},
{
"tool": "get_fill_color",
"tags": [],
"reasons": {}
},
{
"tool": "get_line_color",
"tags": [],
"reasons": {}
},
{
"tool": "get_line_width",
"tags": [],
"reasons": {}
},
{
"tool": "get_corner_radius",
"tags": [],
"reasons": {}
},
{
"tool": "apply_gradient",
"tags": [],
"reasons": {}
},
{
"tool": "clear_gradient",
"tags": [],
"reasons": {}
},
{
"tool": "set_text",
"tags": [],
"reasons": {}
},
{
"tool": "append_text",
"tags": [],
"reasons": {}
},
{
"tool": "get_text",
"tags": [],
"reasons": {}
},
{
"tool": "get_visible_text",
"tags": [],
"reasons": {}
},
{
"tool": "link_text_frames",
"tags": [],
"reasons": {}
},
{
"tool": "is_text_overflowing",
"tags": [],
"reasons": {}
},
{
"tool": "set_font",
"tags": [],
"reasons": {}
},
{
"tool": "set_font_size",
"tags": [],
"reasons": {}
},
{
"tool": "get_font_size",
"tags": [],
"reasons": {}
},
{
"tool": "set_text_color",
"tags": [],
"reasons": {}
},
{
"tool": "set_text_shade",
"tags": [],
"reasons": {}
},
{
"tool": "set_text_alignment",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_spacing",
"tags": [],
"reasons": {}
},
{
"tool": "set_line_spacing_mode",
"tags": [],
"reasons": {}
},
{
"tool": "set_columns",
"tags": [],
"reasons": {}
},
{
"tool": "set_column_gap",
"tags": [],
"reasons": {}
},
{
"tool": "set_underline",
"tags": [],
"reasons": {}
},
{
"tool": "set_underline_pt",
"tags": [],
"reasons": {}
},
{
"tool": "set_strikethrough",
"tags": [],
"reasons": {}
},
{
"tool": "set_strikethrough_pt",
"tags": [],
"reasons": {}
},
{
"tool": "set_outline",
"tags": [],
"reasons": {}
},
{
"tool": "set_outline_pt",
"tags": [],
"reasons": {}
},
{
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