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Security audit

Journal Cover Prompter

Security checks for vulnerabilities and agentic risk

Overview

This skill is a simple scientific image-prompt generator with minor scope/documentation issues but no evidence of credential access, persistence, exfiltration, or destructive behavior.

This appears safe to install for generating scientific journal-cover and graphical-abstract prompts. Users should keep it scoped to visual prompt generation and should not rely on it for broader academic writing or scientific claims without separate review.

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
  • System Prompt LeakageDirect Leakage, Indirect Extraction, Tool-Based Exfiltration
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (4)

Direct Prompt Extraction

High
Category
System Prompt Leakage
Confidence
85% confidence
Finding

Skill contains instructions that could directly expose system prompts, internal rules, or hidden instructions to users or external parties.

Content

Scanner excerpt · SKILL.md (reported line 147)May include surrounding context.

python scripts/cover_prompter.py
--topic "neuroscience synaptic transmission"
--style artistic
--output prompt.txt

text

---

Direct Prompt Extraction

High
Category
System Prompt Leakage
Confidence
85% confidence
Finding

Skill contains instructions that could directly expose system prompts, internal rules, or hidden instructions to users or external parties.

Content

Scanner excerpt · scripts/main.py (reported line 81)May include surrounding context.

python
]
        }
        
        return prompt
    
    def print_prompt(self, prompt):
        """Print formatted prompt."""

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The skill's trigger text expands beyond journal-cover prompting into broad 'academic writing tasks,' which can cause an agent to invoke this skill for unrelated requests. Over-broad activation increases the chance that prompt-generation logic or packaged scripts are used in contexts they were not designed for, weakening task isolation and making downstream misuse more likely.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The finding appears valid because the audit result itself shows evidence of scope drift: one stress scenario failed both 'stays within declared skill scope' and 'required research safety/boundary guidance.' A broad invocation description can cause the skill to be selected for generic academic-writing tasks, increasing the chance it produces outputs outside its intended journal-cover/scientific-artwork domain and bypasses domain-specific safeguards.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.