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Security audit

租赁与递延收益技能包(免费版)

Security checks for vulnerabilities and agentic risk

Overview

This is a local accounting worksheet checker that reads user-provided files and prints results without network use, persistence, or hidden privilege behavior.

Install only if you are comfortable running a local Chinese-language accounting checker on exported worksheet text. Treat its output as arithmetic and consistency review, not audit, tax, or accounting judgment; pay attention to checks explicitly listed as not run, especially free-version withheld sub-checks.

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
Vulnerability Patterns
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • 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 (11)

Tp4

High
Category
MCP Tool Poisoning
Confidence
98% confidence
Finding

If the tool actually runs a different set of checks, on different data structures, and without the claimed original-file line references, users can treat the results as contract-level verification when they are only table-level consistency checks. In an accounting-review context, that can cause silent control gaps: missing issues may be assumed checked, while unsupported findings may be treated as evidence.

Content

No source excerpt is available for this finding.

Tp4

High
Category
MCP Tool Poisoning
Confidence
97% confidence
Finding

If the tool actually runs a different set of checks, on different data structures, and without the claimed original-file line references, users can treat the results as contract-level verification when they are only table-level consistency checks. In an accounting-review context, that can cause silent control gaps: missing issues may be assumed checked, while unsupported findings may be treated as evidence.

Content

No source excerpt is available for this finding.

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 43)May include surrounding context.

md
node scripts/run.mjs --sample # 单合同样例(内置,2 项全跑)

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 44)May include surrounding context.

md
node scripts/run.mjs --sample # 单合同样例(内置,2 项全跑)

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 45)May include surrounding context.

md
node scripts/run.mjs --sample # 单合同样例(内置,2 项全跑)

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 46)May include surrounding context.

md
node scripts/run.mjs --sample # 单合同样例(内置,2 项全跑)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The file’s user-facing comments and instructions are entirely in Chinese and present the workflow, constraints, and warnings only in that language. This creates a natural-language locale constraint without any opt-in, alternative language handling, or documentation that the skill is intentionally region/language-specific.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The file’s natural-language comments and user-facing guidance are entirely in Chinese, including operational disclaimers and input instructions. The policy flags language/locale constraints when a skill effectively requires a specific language without user opt-in or an explicitly documented regional justification.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Medium
Category
Not specified by scanner
Confidence
98% confidence
Finding

The disclaimer states that the tool checks the interest-rate relation (利息 = 期初 × 折现率), but the free-version code explicitly withholds that check. This can mislead users into believing a key validation was performed when it was not, causing false assurance in financial review results and potentially allowing erroneous schedules to pass unnoticed.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
98% confidence
Finding

The script’s help text, status messages, and result formatting are hard-coded in Chinese with no language-selection mechanism, which can cause users to misunderstand inputs, warnings, findings, or exit conditions. In a contract-review/security-adjacent workflow, misunderstanding output can lead to missed issues or incorrect operational decisions, especially for non-Chinese-speaking operators.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The only natural-language content in this file is entirely in Chinese, including the headings and tabular labels, with no indication that the skill is region-specific or that users may select another language. Under the stated policy, forcing a specific language without opt-in is a natural-language policy violation.

Content

No source excerpt is available for this finding.