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Security audit

Video Generation

Security checks for vulnerabilities and agentic risk

Overview

The skill coherently supports CellCog video creation, with expected cloud processing, credit costs, and dependency installation risks.

Prompts and supplied scripts are sent to CellCog, so share only material you are authorized to disclose. Expect credit charges without guaranteed usable results. Review the separate CellCog dependency and prefer reviewed, pinned versions before installation; its implementation was not bundled here.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Output HandlingUnvalidated Output Injection, Cross-Context Output, Unbounded Output
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

The workflow sends user prompts to CellCog without a privacy warning.

Medium
Category
Output Handling
Confidence
94% confidence
Finding

The usage instructions call CellCog's create_chat with the user's task prompt, transmitting its contents to a third-party service. Although the skill identifies CellCog as its provider and warns about costs and output quality, it does not warn that supplied scripts, business information, or other prompt content will leave the user's environment.

Content

No source excerpt is available for this finding.

MCP server referenced without pinned version: 'npx skills'.

Medium
Category
MCP Rug Pull
Confidence
87% confidence
Finding

The documented npx skills add cellcog/skills --skill cellcog command can download and execute an unpinned version of the skills package. A compromised future release could execute code with the invoking user's permissions, potentially exposing local files or credentials. This is a conditional supply-chain risk in an optional setup path, not evidence of malicious behavior or an MCP server configuration as the static finding suggests.

Content

No source excerpt is available for this finding.