Security audit

51job

Security checks for vulnerabilities and agentic risk

Overview

This skill is a narrow 51job helper for summarizing public job and company pages, with no code execution, persistence, login automation, or destructive behavior found.

Before installing, expect the skill to help browse and summarize public 51job listings or company pages. Use it for explicit 51job research tasks, and avoid using it for logged-in account actions, job applications, or large-scale scraping because the skill itself says those are out of scope.

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

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
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code

Findings (1)

Vague Triggers

Medium

Category: Not specified by scanner
Confidence: 91% confidence
Finding: The invocation description is broad enough to trigger on many ordinary requests involving 51job content, which can cause the skill to be selected outside narrowly intended use cases. Over-broad routing increases the chance of unnecessary web access or automation behavior being invoked when a simpler, safer response would suffice.
Content: No source excerpt is available for this finding.