Back to skill

Security audit

Meme Generator

Security checks for vulnerabilities and agentic risk

Overview

This is a local meme-generation skill whose file reads and writes match its stated purpose, with only ordinary overwrite cautions.

Install only if you are comfortable with a local CLI that writes SVG/HTML files and may overwrite default output names such as meme.svg; use explicit output paths in a dedicated working directory.

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 Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • 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 (8)

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
python scripts/meme_gen.py make 'Unit tests?' 'No tests.' --template drake --output meme.svg

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 24)May include surrounding context.

md
python scripts/meme_gen.py make 'Unit tests?' 'No tests.' --template drake --output meme.svg

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 27)May include surrounding context.

md
python scripts/meme_gen.py make 'Unit tests?' 'No tests.' --template drake --output meme.svg

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 30)May include surrounding context.

md
python scripts/meme_gen.py make 'Unit tests?' 'No tests.' --template drake --output meme.svg

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 33)May include surrounding context.

md
python scripts/meme_gen.py make 'Unit tests?' 'No tests.' --template drake --output meme.svg

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 72)May include surrounding context.

md
python scripts/meme_gen.py make 'Unit tests?' 'No tests.' --template drake --output meme.svg

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
91% confidence
Finding

The skill documentation exposes file read/write capabilities through commands that read templates and write SVG/HTML outputs, but it does not declare any explicit tool scope or permissions. In agent environments, undeclared filesystem access weakens sandboxing and user visibility, allowing the skill to write files or read local template inputs beyond what a reviewer may expect.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
92% confidence
Finding

In the no-subcommand path, providing a global template causes the program to write directly to a fixed filename, meme.svg, in the current working directory without prompting or requiring an explicit output path. This can overwrite an existing file unexpectedly, which is a real integrity risk even though it is not likely to lead to code execution or privilege escalation in this meme-generation context.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.