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Security audit

Ledger Monthly Report

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward monthly ledger reporting helper, with one timezone caveat that users should confirm near month boundaries.

Before using it, confirm the reporting month explicitly if your ledger is not based on Asia/Taipei time or if you are near the start or end of a month. Expect it to read local ledger data from projects/data and create summary/chart files in projects/reports.

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
  • 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 (1)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The skill hard-codes Asia/Taipei to compute the default reporting month without confirming the user's locale or account timezone. Around month boundaries, this can select the wrong month and produce an inaccurate financial report, which is a genuine security/privacy-integrity issue even though it is not directly exploitable for code execution or data exfiltration.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.