Selenium (rayven122) MCP Server
@rayven122/mcp-selenium
npm
v0.2.5
Source verified
Published by rayven122 — publish provenance cryptographically ties this package to that repository. That is proof of origin, not an official vendor package.
Selenium WebDriver MCP Server (rayven122 fork — adds Edge IE mode)
The grade answers one question — how safe is this server for you to adopt — so it is computed in two auditable stages. Nothing below is an opinion or an LLM's guess; every line is a real term the deterministic engine applied, and the same input always yields the same number.
1. Threat score — 100 − 0 = 100. What the published surface and source actually contain:
The deterministic scan raised no scored threat in the surface it inspected — the threat score stayed at 100. Capability observations and advisory notes are recorded but never lower it.
2. Client adoption risk — 100 − 6 = 94. Three small, subtract-only factors that reflect your risk in adopting it — a clean scan proves less on a powerful, unverified or barely-inspectable package, so the grade says so plainly:
| Points | Adoption-risk factor |
|---|---|
| −6 | capability blast radius (high) — client exposure if the model is manipulated |
Capability observations and info notes are shown under Findings but never scored.
Open any row's finding below for the file, line and evidence behind a deduction.
Findings 4
high Tool "execute_script" exposes command/code executionMTC-CAP-001
Tool "execute_script" appears to run shell commands or evaluate code (parameter "script"). Arbitrary execution driven by model input is one of the most dangerous MCP capabilities; combined with any untrusted input it becomes RCE.
Fix: Sandbox execution, allowlist commands/arguments, and never pass model output to a shell unescaped.
Location: tool execute_script
high Shell/command execution in server code (bin/mcp-selenium.js)MTC-SRC-002
In the server's implementation (`bin/mcp-selenium.js:3`): Spawning a shell/process is command-execution capability; with unsanitized tool input it is command injection / RCE. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.
Evidence: rt { spawn } from 'node:child_process'; import { dirname, resolve } from 'node:path'; import { fileURLToPath } from 'nod
Fix: Review this call path: confirm it never receives unsanitized tool input, constrain it, or remove it. Treat a server whose code reaches these sinks as high-capability regardless of what its tools claim.
Location: server bin/mcp-selenium.js
medium Unconstrained command parameter "script" on "execute_script"MTC-CAP-006
Tool "execute_script" takes a command-shaped parameter "script" with no enum/pattern constraint. Free-form, model- or attacker-controlled arguments reaching a shell is the command-injection precondition.
Fix: Constrain the parameter (enum/pattern), or build the command from a fixed template with escaped args.
Location: tool execute_script · inputSchema.properties.script
low Mutating tool "execute_script" declares no destructiveHintMTC-CAP-005
Tool "execute_script" can mutate/egress but declares no destructiveHint. Clients that don't default to spec-safe behavior may not prompt before running it.
Fix: Declare accurate annotations, and gate destructive tools on user confirmation regardless.
Location: tool execute_script
Tools 18
Each tool and what it can reach — statically extracted from the published source.
execute_scriptruns code / shellupload_filenetwork egressadd_cookieno sensitive capabilityalertno sensitive capabilityclose_sessionno sensitive capabilitydelete_cookieno sensitive capabilitydiagnosticsno sensitive capabilityframeno sensitive capabilityget_cookiesno sensitive capabilityget_element_attributeno sensitive capability
Show 8 more tools ↓
get_element_textno sensitive capabilityinteractno sensitive capabilitynavigateno sensitive capabilitypress_keyno sensitive capabilitysend_keysno sensitive capabilitystart_browserno sensitive capabilitytake_screenshotno sensitive capabilitywindowno sensitive capability
What this scan could not see
- Tools were statically extracted from the published source (18 recovered), not enumerated from a running server. Tool-poisoning, Unicode-smuggling, capability and toxic-flow analysis ran on this inferred surface, but a mis-parsed registration could be missed or mis-attributed, so tool-derived findings are capped below “confirmed”. To grade the real runtime surface, scan the running server: --command "npx -y <package>".
Versions 1
Scan history per published version. The engine is deterministic — the same version always yields the same score, so a changed score means the package itself changed.
| Version | Score | Findings | Engine | Scanned |
|---|---|---|---|---|
v0.2.5 latest |
A 94/100 | 4 | 1.13.0 | 2026-09-07 |
Embed this score
Show this server's live Trust Score in your README, docs or website. The badge is served straight from the registry and updates automatically after every rescan — no API key needed. It links back to this page, so anyone who sees the grade can also read the findings behind it instead of taking a number on faith.
Verify this score yourself
The score above is reproducible: the same package version always yields the same result. Run it locally or over the free API — no account, no LLM, fully deterministic.
npx mcptrustchecker scan @rayven122/mcp-selenium --onlineOther implementations of Selenium 14
Independent packages implementing the same tool, scanned with the same engine. Compare all 15 side by side →
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