v0.2.0 · live
CAPFRAME
← leaderboard/server-puppeteer/tool · puppeteer_hover
§ toolsandboxserver-puppeteer

puppeteer_hover

on npm:@modelcontextprotocol/server-puppeteer@2025.5.12

Severity

critical0
high0
medium1
low0
info0

1 finding on this tool

  1. mediumunconstrained inputf-r1-puppeteer_hover

    Tool `puppeteer_hover` accepts unconstrained string input

    The following string parameter(s) have no `maxLength` constraint: `selector`. Unbounded strings let an attacker stuff arbitrary payloads through the tool, including indirect-injection content.

    fix: Add a `maxLength` to each string property, or constrain with an `enum` or `pattern`. Most legitimate tool inputs fit under a few hundred bytes.

    OWASP LLM01NIST MEASURE-2.3ATLAS T0051

About this tool

puppeteer_hover is one of 7 tools exposed by server-puppeteer. The server scored 76/100 overall against the capframe rule engine (source: sandbox). Last scanned 2026-06-05.

The findings above are emitted by the public capframe.findings.v1 schema. Disagree with one? Open an issue.