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Stripe upgrade-stripe — agentic threat model

9.2AIVSS 9.2 · Critical

The Stripe upgrade-stripe skill presents a high-risk profile because it directly edits real source code, creating a direct path to arbitrary code execution or supply chain compromise if the agent is manipulated via prompt injection or tool abuse.

OWASP AIVSS score rationale

AIVSS = (CVSS_Base + AARS) × Mitigation_Factor, where AARS = (10 − CVSS_Base) × (Factor_Sum / 10) × ThM
CVSS base 8.5AARS uplift 0.71Factor sum 4.7/10Threat ×1.0Mitigation ×1.0
Autonomy of Action
0.70
Goal-Driven Planning
0.60
Self-Modification
0.10
Dynamic Tool Use
0.80
Persistent Memory
0.20
Contextual Awareness
0.70
Dynamic Identity
0.20
Multi-Agent Interactions
0.30
Non-Determinism
0.60
Opacity & Reflexivity
0.50

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 — The listing does not specify the underlying LLM used by this Stripe skill. Standard threats like prompt injection could lead to malicious code refactoring or introducing vulnerabilities into the codebase.

L2 · Data Operations⚠ not certain from listing

Not certain from the listing — The skill uses Stripe's migration guidance and version deltas, but the exact data storage or RAG mechanism for this guidance is unspecified. Threats include poisoning of the migration guidance database.

L3 · Agent Frameworks✓ mapped

The skill integrates into an agent framework to edit real source code. Threats include tool misuse (e.g., writing arbitrary malicious code instead of Stripe upgrades) and insecure tool integration where the file-writing tool is exploited.

L4 · Deployment & Infrastructure⚠ not certain from listing

Not certain from the listing — The hosting environment and sandboxing of the code-editing tool are not detailed. If run without a secure sandbox, a compromised skill could execute arbitrary commands on the host system.

L5 · Evaluation & Observability⚠ not certain from listing

Not certain from the listing — There is no mention of built-in guardrails, logging, or evaluation metrics to verify the safety of the generated code refactors before they are applied.

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

Not certain from the listing — No explicit authentication, authorization, or compliance controls are mentioned for limiting which parts of the codebase the skill can access or modify.

L7 · Agent Ecosystem✓ mapped

This is an 'Agent Skill' designed to be consumed by other agents. Threats include A2A trust abuse, where a compromised parent agent abuses this skill to inject malicious Stripe API calls, or the skill itself acting as a supply-chain vulnerability.

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