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Security audit

Amazon Seller Central Guide

Security checks for vulnerabilities and agentic risk

Overview

This is a documentation-only Amazon seller guide, but some examples could lead users into risky or out-of-scope Seller Central actions if followed without review.

Install only if you will treat the content as a starting checklist, not final compliance advice. Verify current Amazon, GTIN, advertising, and supplement-claim rules yourself, and review any title, bullet, keyword, pricing, shipment, or Seller Central submission before allowing an agent to act on it.

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs
Vulnerability Patterns
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Findings (7)

Intent-Code Divergence

High
Category
Not specified by scanner
Confidence
98% confidence
Finding

The file asserts 'No medical claims made' despite listing copy that includes disease- or treatment-like supplement claims such as liver detox, metabolic optimization, bloat relief, cellular regeneration, and liver cell renewal. In a supplement-listing skill, this is especially dangerous because it may prompt generation of noncompliant health claims that can trigger Amazon policy violations and regulatory exposure.

Content

No source excerpt is available for this finding.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
75% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · references/category-requirements.md (reported line 7)May include surrounding context.

md
## Category Overview

### Open Categories (No Approval Needed)
- Home & Kitchen
- Sports & Outdoors
- Tools & Home Improvement

Context-Inappropriate Capability

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The example includes a PPC launch strategy even though the skill metadata explicitly says the skill is not for Amazon Advertising. This can cause downstream agents or users to rely on out-of-scope guidance, leading to unauthorized ad-related assistance and policy/operational drift.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The guide names specific third-party UPC resellers while only briefly noting that some codes may be invalid or recycled, which can normalize a risky practice for Amazon sellers. In this skill context, users are seeking compliance guidance for listing products, so incomplete warnings may lead them to buy non-GS1 codes that trigger listing suppression, brand disputes, or account-health issues.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

Line L043 states "local language needed" for the JP marketplace, which is a natural-language locale constraint. The file does not present this as a user opt-in choice or explain a narrow organizational policy basis for forcing that locale, so it fits the language/locale policy violation category.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
89% confidence
Finding

The listing explicitly fixes the marketplace to "Amazon.com (US)", which is a locale-specific constraint stated in natural language/data without any indication of user choice or opt-in. Under the policy criteria, forcing a specific language/locale can be a violation unless it is clearly documented as region-specific and justified.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

This plain-text template uses Chinese throughout, including headings and field labels, which imposes a specific language on users. The file does not indicate that the template is region-specific or provide any opt-in or alternative language option, which can violate language/locale policy requirements.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.