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Security audit

Guizang HTML to PPTX

Security checks for vulnerabilities and agentic risk

Overview

This skill appears to be a normal local exporter that converts a guizang HTML slide deck into editable PPTX files, with no evidence of hidden persistence or data theft.

Before installing, understand that the skill may create or update files in the presentation project, including a PPTX, an exporter script, and QA render artifacts. For best control, tell the agent the exact `ppt/index.html` or `index.html` to export, especially in repositories containing multiple slide decks.

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 (2)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The skill description is broadly worded around exporting or converting presentations and includes a default behavior when explicitly selected, which can cause the agent to invoke it on loosely related presentation-conversion requests. That can lead to unintended file discovery and export actions in the current working directory, especially because the skill is instructed to search for likely decks and proceed with the best match.

Content

No source excerpt is available for this finding.

Missing User Warnings

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

The skill specifies that it will create a PPTX, exporter script, and QA artifacts inside the project tree, but it does not clearly warn the user up front that new files will be written. In an agent context, undisclosed writes can surprise users, overwrite existing work, or create unwanted artifacts in repositories and working directories.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.