Security audit

BS Deep Analysis

Security checks for vulnerabilities and agentic risk

Overview

The skill matches its accounting-report purpose, but it handles confidential QuickBooks financial data and leaves sensitive outputs and cache handling under-specified.

Review before installing. Use this only in a trusted finance environment, verify and pin the exact dependencies and QBO client, limit QBO token scope, keep generated Excel files restricted, and make sure the .cache/bs-deep-analysis files are protected, excluded from sharing/source control, and deleted when no longer needed.

A.I.G

Vulnerability Patterns

Insecure DependenciesIntroduces malicious components through unsafe dependency sources
Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
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

Findings (2)

T08 · Insecure Dependencies

Warning

Location: SKILL.md:197
Finding: Unpinned Third-Party Dependencies Create Supply-Chain Risk
Content: View full analysis
Remediation: View remediation

T09 · Insecure Skill Coding Practices

Warning

Location: SKILL.md:158
Finding: Sensitive Balance-Sheet Data Is Documented as Being Stored in a Predictable Plaintext Cache
Content: View full analysis
Remediation: View remediation

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

Category: Not specified by scanner
Confidence: 91% confidence
Finding: This skill explicitly handles QuickBooks balance sheet, general ledger, vendor/payee, and transaction-level data, but it does not warn users that outputs, caches, and Excel workbooks may contain sensitive financial information. That omission can lead to accidental exposure through desktop exports, shared files, or local cache retention, especially because the skill stores CDC data under a predictable cache path and generates drill-down tabs with detailed transactions.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.