Security audit

Guaikei Kuaishou Data Extractor

Security checks for vulnerabilities and agentic risk

Overview

This skill coherently fetches public Kuaishou data through a disclosed third-party API and saves successful results locally for later analysis.

Install only if you are comfortable sending Kuaishou search terms, video/profile URLs, and your GUAIKEI_API_TOKEN to guaikei.com. Treat saved logs as retained copies of fetched public data, especially comments that may contain personal information, and delete or restrict those logs when needed.

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

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
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (1)

Missing User Warnings

Medium

Confidence: 86% confidence
Finding: The script writes fetched comment data to a local JSON file automatically, without any visible opt-in, warning, or control in this file. If comments contain personal data, sensitive content, or regulated information, this creates an unnecessary persistence and disclosure risk on shared systems or in automated environments.

Static analysis

Detected: suspicious.exposed_secret_literal

File appears to expose a hardcoded API secret or token.

Critical

Code: suspicious.exposed_secret_literal
Location: SKILL.md:16