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NexusGPT — agentic threat model

9.6AIVSS 9.6 · Critical

NexusGPT presents a high agentic risk profile due to its autonomous task planning, multi-platform deployment (Slack, Teams, WhatsApp), and third-party tool marketplace, which collectively expand the attack surface for prompt injection, supply chain attacks, and unauthorized actions.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 8.5AARS uplift 1.09Factor sum 6.6/10Threat ×1.1Mitigation ×1.0
Autonomy of Action
0.80
Goal-Driven Planning
0.80
Self-Modification
0.30
Dynamic Tool Use
0.80
Persistent Memory
0.50
Contextual Awareness
0.70
Dynamic Identity
0.60
Multi-Agent Interactions
0.60
Non-Determinism
0.70
Opacity & Reflexivity
0.80

Scored with the canonical OWASP AIVSS formula (AIVSS calculator reference); agentic risk factors estimated from the agent’s described capabilities.

MAESTRO 7-layer threat model

Per-layer threats for this agent. Layers tagged “not certain from listing” are general, caveated commentary where the public description didn’t pin that layer.

L1 · Foundation Models⚠ not certain from listing

Not certain from the listing — likely relies on third-party commercial LLMs (e.g., OpenAI, Anthropic) via API, exposing it to standard foundation model threats like prompt injection, adversarial examples, and model-specific alignment issues.

L2 · Data Operations⚠ not certain from listing

Not certain from the listing — supports custom knowledge integration which implies vector databases or RAG pipelines, creating risks of knowledge-base poisoning, data exfiltration via prompt injection, and lack of data lineage controls.

L3 · Agent Frameworks✓ mapped

The platform orchestrates autonomous task planning and execution, introducing high risks of tool misuse, insecure tool integration from the marketplace, and prompt injection leading to unauthorized actions.

L4 · Deployment & Infrastructure⚠ not certain from listing

Not certain from the listing — deployment across multiple external platforms (WhatsApp, Slack, Teams) suggests API-driven integrations, but the underlying hosting, sandboxing of agent execution, and secrets management for tool APIs are not detailed.

L5 · Evaluation & Observability⚠ not certain from listing

Not certain from the listing — there is no mention of built-in guardrails, real-time monitoring, evaluation frameworks, or logging mechanisms to detect anomalous agent behavior or drift.

L6 · Security & Compliance (cross-cutting)⚠ not certain from listing

Not certain from the listing — lacks explicit details on identity and access management (IAM), tenant isolation, or compliance certifications (e.g., SOC2, GDPR) for custom deployed agents.

L7 · Agent Ecosystem✓ mapped

High risk due to the 'extensive tool marketplace' and 'pre-built agents', which can introduce supply chain vulnerabilities, malicious third-party tools, and cascading failures across multi-agent interactions.

MAESTRO — the 7-layer agentic threat-modeling framework (Cloud Security Alliance / Ken Huang).