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VRChat Avatar Maker — agentic threat model

6.3AIVSS 6.3 · Medium

The VRChat Avatar Maker presents a low agentic risk profile due to its human-in-the-loop creator workflow, but carries moderate data security and client-side risks related to generative 3D asset pipelines and file downloads.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 5.3AARS uplift 1.03Factor sum 2.2/10Threat ×1.0Mitigation ×1.0
Autonomy of Action
0.30
Goal-Driven Planning
0.20
Self-Modification
0.00
Dynamic Tool Use
0.20
Persistent Memory
0.20
Contextual Awareness
0.30
Dynamic Identity
0.00
Multi-Agent Interactions
0.00
Non-Determinism
0.60
Opacity & Reflexivity
0.40

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 utilizes specialized 3D generative models and text-to-image diffusion models for texturing. Primary threats include adversarial prompt injection to bypass safety filters and model reprogramming to generate malicious or copyrighted 3D assets.

L2 · Data Operations⚠ not certain from listing

Not certain from the listing — processes user-uploaded reference images and multi-view concepts. Risks include malicious image file uploads designed to exploit parser vulnerabilities, and potential leakage of proprietary user-submitted character designs.

L3 · Agent Frameworks⚠ not certain from listing

Not certain from the listing — likely uses a deterministic pipeline orchestrator rather than an autonomous agent framework. Risks are centered around insecure tool integration between the texturing, auto-rigging, and 3D mesh generation steps.

L4 · Deployment & Infrastructure⚠ not certain from listing

Not certain from the listing — requires high-performance GPU infrastructure for 3D rendering and rigging. Vulnerabilities could include container escape during resource-intensive generation tasks or unauthorized access to backend generation APIs.

L5 · Evaluation & Observability⚠ not certain from listing

Not certain from the listing — there is no mention of automated guardrails or content moderation to prevent the generation of offensive, unsafe, or highly non-compliant VRChat avatars.

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

Not certain from the listing — being open source allows for public code auditing, but there is no evidence of formal compliance frameworks (e.g., SOC2) or robust access controls for user workspaces.

L7 · Agent Ecosystem✓ mapped

The agent operates as a standalone creator workspace with no described multi-agent interactions or marketplace integrations, making ecosystem-level cascading failures highly unlikely.

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

These scores are auto-generated from public information (the agent's own listing, docs, and repository) using the canonical OWASP AIVSS formula and the MAESTRO framework — an estimate for guidance, not a penetration test, audit, or certification. See the scoring methodology. Are you the vendor? Factual corrections are free.