Medium Risk

upload_image

upload_image

How to control upload_image ↓

AI agents use upload_image to create or update resources in PixVerse MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your PixVerse MCP environment.

Medium Risk

Upload operations create or store data on a system, fitting the Write category (reversible data modification). Severity is medium because: (1) uploaded content could consume storage resources, (2) if the service processes images, malicious uploads could trigger unintended video generation, and (3) uploaded data persists but can typically be deleted.

From the tool's definition Tool name 'upload_image' indicates file upload functionality. Description is empty, limiting definitive classification.

Documented attack patterns abuse exactly the kind of access upload_image gives an agent:

PolicyLayer is an MCP gateway — it sits between your AI agents and PixVerse MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for upload_image:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "upload_image": {
      "limits": [
        {
          "counter": "upload_image_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

upload_image stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

  1. Create a free account and register PixVerse MCP — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

Free to start. No card required.

Go deeper

What does the upload_image tool do? +

upload_image. It is categorised as a Write tool in the PixVerse MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on upload_image? +

Register the PixVerse MCP server in PolicyLayer and add a rule for upload_image: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches PixVerse MCP. Nothing to install.

What risk level is upload_image? +

upload_image is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit upload_image? +

Yes. Add a rate_limit block to the upload_image rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block upload_image completely? +

Set action: deny in the PolicyLayer policy for upload_image. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides upload_image? +

upload_image is provided by the PixVerse MCP server (pixverseai/pixverse-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every PixVerse MCP tool call.

Deterministic rules across all 12 PixVerse MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

12 PixVerse MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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