Security audit

Kuaishou Skill 20260901

Security checks for vulnerabilities and agentic risk

Overview

This skill is a disclosed Kuaishou public-data research integration, with no bundled executable code, persistence, privilege escalation, or hidden behavior found.

Before installing, confirm you are comfortable using a third-party guaikei.com API token and sending Kuaishou keywords, profile links, or video links to that service. Also note that the inspected package only includes the skill instructions, while the referenced CLI scripts are not present in the artifact.

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)

Natural-Language Policy Violations

Low

Category: Not specified by scanner
Confidence: 84% confidence
Finding: The manifest description is primarily in Chinese with appended English, but the skill does not state that users can choose their preferred language or locale. Under the policy, forcing or assuming a specific language without opt-in can be a natural-language policy issue.
Content: No source excerpt is available for this finding.