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Security audit

Excel 智能记账与对账

Security checks for vulnerabilities and agentic risk

Overview

The skill’s financial-file access and ledger updates fit its bookkeeping purpose and include clear authorization, backup, and conflict-handling safeguards.

Provide access only to the intended ledger and statements. Review reported changes and keep recoverable versions. New workbooks use Chinese sheet names by default. The inspected artifacts support neither excessive-access concerns nor malicious behavior, consistent with the empty static-scan results.

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
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • 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 (2)

Skill declares no tool scope ('permissions' or 'allowed-tools') but code capabilities were detected: file_read.

Medium
Category
MCP Least Privilege
Confidence
70% confidence
Finding

Without declared permissions the skill's intent is opaque and cannot be validated.

Content

No source excerpt is available for this finding.

New ledgers are required to use Chinese worksheet names without user language opt-in.

Low
Category
Output Handling
Confidence
90% confidence
Finding

The instruction mandates Chinese worksheet names for every new ledger, regardless of the user's language preference. No language choice or region-specific justification is provided; preserving names in existing ledgers does not address this constraint for new ones.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.