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Security audit

Bytesagain Marketplace Listing Lab

Security checks for vulnerabilities and agentic risk

Overview

This skill appears to be a local ecommerce copy generator and does not show hidden data access, network activity, or persistence.

This appears safe to use as a local drafting helper. Review generated marketplace claims against official platform rules before publishing, and provide only product facts you are comfortable using in listing copy.

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
  • 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
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (9)

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 21)May include surrounding context.

md
bash scripts/script.sh brief --product "portable blender" --channel "Amazon" --features "USB-C charging,400ml cup,easy cleaning" --keywords "portable blender,sm

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 26)May include surrounding context.

md
bash scripts/script.sh brief --product "portable blender" --channel "Amazon" --features "USB-C charging,400ml cup,easy cleaning" --keywords "portable blender,sm

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 31)May include surrounding context.

md
bash scripts/script.sh brief --product "portable blender" --channel "Amazon" --features "USB-C charging,400ml cup,easy cleaning" --keywords "portable blender,sm

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 36)May include surrounding context.

md
bash scripts/script.sh brief --product "portable blender" --channel "Amazon" --features "USB-C charging,400ml cup,easy cleaning" --keywords "portable blender,sm

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 41)May include surrounding context.

md
bash scripts/script.sh brief --product "portable blender" --channel "Amazon" --features "USB-C charging,400ml cup,easy cleaning" --keywords "portable blender,sm

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 46)May include surrounding context.

md
bash scripts/script.sh brief --product "portable blender" --channel "Amazon" --features "USB-C charging,400ml cup,easy cleaning" --keywords "portable blender,sm

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The manifest describes a skill for generating marketplace listings, titles, bullets, attributes, and QA checks for marketplaces like Amazon, Taobao, Pinduoduo, and Shopee. However, the script also implements broader ecommerce marketing outputs such as Shopify/independent-site SEO metadata, product detail pages, livestream cues, short video scripts, captions, and a 14-day SEO content plan, which goes beyond marketplace listing generation and QA.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

The script sets LANG="en" as the default, which establishes English as the output language unless the user explicitly overrides it. This is a natural-language locale choice embedded in code and may violate language/locale policy when no user opt-in or justification is provided.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Low
Category
Not specified by scanner
Confidence
95% confidence
Finding

The help text says the available commands are only 'brief title bullets compare audit demo help version', but the file defines many additional command functions such as cmd_pdp, cmd_seo, cmd_faq, cmd_script, cmd_live, cmd_caption, and others. This documentation does not match the actual command surface exposed by the codebase and misrepresents intended functionality.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.