Browser Gateway MCP Server

browser-gateway npm v0.3.6

Published by browser-gateway — no publish provenance and no vendor-owned scope, so the publisher could not be verified. The repository link below is self-declared.

Trust grade
C
77/100
Last scanned
Trust
C · 77/100
How safe the published surface and source look. Deterministic; every point is auditable.
Capability
High
Blast radius if it went rogue — what the server’s tools could reach. Independent of trust.
Coverage
Source
How much the scan could actually inspect. Shallow coverage is stated, never hidden.
C Why this grade 100 − 23.1 = 77/100

Every server starts at 100. These are the exact deductions the deterministic engine applied — each one reproducible, none of it an opinion or an LLM's guess:

PointsWhat was foundCategory
−23.1 Obfuscated / encoded payload in server code ×2 MTC-SRC-004 injection

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 the deduction.

Findings 8

high Obfuscated / encoded payload in server code (web/dist/_next/static/chunks/2phshchrnsx8u.js)MTC-SRC-004

In the server's implementation (`web/dist/_next/static/chunks/2phshchrnsx8u.js:1`): Decoding an encoded blob and executing it is how malicious logic is hidden from human review of the source. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: \x1F\x7F\x81\x8D\x8F\x90\x9D\xA0

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 web/dist/_next/static/chunks/2phshchrnsx8u.js

high Obfuscated / encoded payload in server code (web/dist/_next/static/chunks/3q2mi5bog4ugb.js)MTC-SRC-004

In the server's implementation (`web/dist/_next/static/chunks/3q2mi5bog4ugb.js:1`): Decoding an encoded blob and executing it is how malicious logic is hidden from human review of the source. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: \x1F\x7F\x81\x8D\x8F\x90\x9D\xA0

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 web/dist/_next/static/chunks/3q2mi5bog4ugb.js

high Dynamic code execution in server code (web/dist/_next/static/chunks/0cz1d0mv5g_q7.js)MTC-SRC-001

In the server's implementation (`web/dist/_next/static/chunks/0cz1d0mv5g_q7.js:1`): Evaluating strings as code is the most direct RCE primitive; if any tool input reaches it, the server executes attacker-chosen code. This is read from the code itself — not from the tool description — so a poisoned server cannot hide it behind honest-looking metadata.

Evidence: Function("

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 web/dist/_next/static/chunks/0cz1d0mv5g_q7.js

high Shell/command execution in server code (dist/server/replay/export-mp4.js)MTC-SRC-002

In the server's implementation (`dist/server/replay/export-mp4.js:1`): 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: child_process

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 dist/server/replay/export-mp4.js

high Shell/command execution in server code (web/dist/_next/static/chunks/0i-7-gz4fh6jl.js)MTC-SRC-002

In the server's implementation (`web/dist/_next/static/chunks/0i-7-gz4fh6jl.js:138`): 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: exec(

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 web/dist/_next/static/chunks/0i-7-gz4fh6jl.js

high Shell/command execution in server code (web/dist/_next/static/chunks/1eiiysbic6mjx.js)MTC-SRC-002

In the server's implementation (`web/dist/_next/static/chunks/1eiiysbic6mjx.js:1`): 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: exec(

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 web/dist/_next/static/chunks/1eiiysbic6mjx.js

high Shell/command execution in server code (web/dist/_next/static/chunks/1voi0_uwfenrd.js)MTC-SRC-002

In the server's implementation (`web/dist/_next/static/chunks/1voi0_uwfenrd.js:1`): 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: exec(

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 web/dist/_next/static/chunks/1voi0_uwfenrd.js

high Shell/command execution in server code (web/dist/_next/static/chunks/2_u4o4uxy6os7.js)MTC-SRC-002

In the server's implementation (`web/dist/_next/static/chunks/2_u4o4uxy6os7.js:1`): 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: exec(

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 web/dist/_next/static/chunks/2_u4o4uxy6os7.js

What this scan could not see

Versions

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.

VersionScoreFindingsEngineScanned
v0.3.6 latest C 77/100 8 1.5.0 2026-07-22

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MCP Trust Score: C · 77/100
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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 browser-gateway --online

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