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Security audit

Paywall Upgrade Cro

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward paywall optimization guide with no executable code, network behavior, persistence, or hidden authority.

Before installing, understand that this skill may read local product marketing context files to tailor advice. Avoid storing secrets or sensitive customer data in those context files, and use the skill for in-app upgrade and paywall UX rather than general pricing strategy.

A.I.G

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

SkillSpector

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 (3)

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 · references/experiments.md (reported line 157)May include surrounding context.

md
- Cool-down period after dismiss (hours vs. days)
- Escalating urgency over time vs. consistent messaging
- Once per feature vs. consolidated prompts
- Re-show rules after major engagement

### Dismiss Behavior
- "Maybe later" vs. "No thanks" vs. "Remind me tomorrow"

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The manifest description includes broad activation language such as "When the user wants to create or optimize in-app paywalls" and especially "Use this for any in-product moment where you're asking users to upgrade." This scope is expansive and lacks clear exclusion criteria or negative examples, increasing the chance that ordinary monetization or product-design discussions will invoke the skill unintentionally.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The eval explicitly expects the skill to trigger on casual phrasing about upgrade timing, which encourages broad semantic matching beyond explicit paywall terms. In a routing or skill-selection system, this can cause unintended invocation on adjacent product, pricing, or UX questions, leading to misrouting, degraded guidance quality, and possible override of more appropriate specialized skills.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.