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Storyha AI — agentic threat model

5.3AIVSS 5.3 · Medium

Storyha AI is a low-risk, human-in-the-loop creative writing assistant with minimal agentic capabilities, posing virtually no threat of autonomous real-world impact or tool misuse.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 4.3AARS uplift 0.97Factor sum 1.9/10Threat ×0.9Mitigation ×1.0
Autonomy of Action
0.10
Goal-Driven Planning
0.20
Self-Modification
0.00
Dynamic Tool Use
0.00
Persistent Memory
0.20
Contextual Awareness
0.30
Dynamic Identity
0.00
Multi-Agent Interactions
0.00
Non-Determinism
0.70
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 relies on commercial or open-source LLMs tuned for creative writing. Primary threats include prompt injection to bypass safety filters (generating NSFW/harmful content) and model output misalignment.

L2 · Data Operations⚠ not certain from listing

Not certain from the listing — likely stores user-generated stories, character profiles, and prompts in a standard database. Threats include unauthorized access to user intellectual property and potential data leakage if user inputs are used for downstream training.

L3 · Agent Frameworks⚠ not certain from listing

Not certain from the listing — the tool appears to be a standard LLM-backed web application rather than an autonomous agent framework. Threats are minimal due to the lack of tool execution or complex planning capabilities.

L4 · Deployment & Infrastructure⚠ not certain from listing

Not certain from the listing — likely hosted on standard cloud infrastructure. Standard web vulnerabilities (OWASP Top 10) like broken authentication or SQL injection are the primary threats to the hosting environment.

L5 · Evaluation & Observability⚠ not certain from listing

Not certain from the listing — likely relies on basic application logging and LLM provider monitoring. There is no evidence of advanced LLM-specific guardrails or real-time drift detection for creative writing outputs.

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

Not certain from the listing — no security certifications (like SOC2 or ISO 27001) or compliance frameworks are mentioned. Standard user authentication and basic privacy policies are expected for a subscription-based SaaS.

L7 · Agent Ecosystem✓ mapped

Storyha operates as a standalone creative writing assistant with no integration into a multi-agent ecosystem or marketplace, making ecosystem-level threats (like cascading agent failures or rogue agent interactions) non-existent.

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