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Security audit

AI Detector

Security checks for vulnerabilities and agentic risk

Overview

This skill is a simple AI-text detector that sends user-provided text to a disclosed external GPTHumanizer API.

Install only if you are comfortable sending text to GPTHumanizer's external detection service. Do not submit secrets, private customer data, regulated records, or unpublished confidential material unless your organization has approved that service.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (3)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The README describes a text detection skill backed by the GPTHumanizer Detection API but does not clearly warn users that submitted text may be transmitted to an external third-party service. This creates a real privacy and data-handling risk because users may paste sensitive, unpublished, regulated, or confidential text under the assumption processing is local or self-contained.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
90% confidence
Finding

The documented cURL example clearly performs an outbound POST to a remote domain, which is expected for this skill but still represents external transmission of user content. In the context of an AI-detection skill, that behavior is functionally necessary, yet it remains dangerous if users are not made aware that their input is being sent off-platform to a third party.

Content

Scanner excerpt · examples.md (reported line 3)May include surrounding context.

Examples

cURL Example

bash
curl -X POST "https://detect.gpthumanizer.ai/api/detect_ai" \

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The example instructs users to send arbitrary text content to a third-party API endpoint but does not disclose that the text leaves the local environment or warn against submitting sensitive data. This creates a real privacy and data-handling risk because users may paste confidential, proprietary, or regulated content into the request without informed consent.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.