Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Html Mcp Web

Html Mcp Web, an MCP server listed in the PlugVet directory.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High. Only try it in a sandbox.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

PERMISSION_SHELL_UNDECLARED OBFUSCATION_ENCODED_BLOB OBFUSCATION_MINIFIED_PAYLOAD

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

    Runs shell commands that the manifest or description does not mention.

    html_mcp_web/cli.py, line 77 result = subprocess.run([sys.executable, str(builder), str(content), str(main)],

  • OBFUSCATION_ENCODED_BLOB Medium

    Contains a long base64 shaped string in a file that should be readable.

    html_mcp_web/static/ace/ace.js, line 1 (function(){function o(n){var i=e;n&&(e[n]||(e[n]={}),i=e[n]);if(!i.define||!i.define.packaged)t.original=i.define,i.define=t,i.define.packaged=!0;if(!i.require||!i.require.package

  • OBFUSCATION_MINIFIED_PAYLOAD Medium

    Contains a very long line with almost no spaces in a script or style file.

    html_mcp_web/static/ace/ace.js, line 1 (function(){function o(n){var i=e;n&&(e[n]||(e[n]={}),i=e[n]);if(!i.define||!i.define.packaged)t.original=i.define,i.define=t,i.define.packaged=!0;if(!i.require||!i.require.package

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

If you think this grade is wrong, email [email protected] with the entry link and your evidence. We aim to acknowledge within two working days and decide within seven. If we confirm an error, we aim to correct it within 24 hours of confirming it. These are aims, not guarantees.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Concern

    requests shell access. No manifest field names shell or command execution. can delete files.

    PERMISSION_SHELL_UNDECLARED PERMISSION_DELETE_FILES

    html_mcp_web/cli.py, line 77

    result = subprocess.run([sys.executable, str(builder), str(content), str(main)],

    html_mcp_web/pdf_export.py, line 41

    proc = subprocess.Popen(

    html_mcp_web/pdf_export.py, line 67

    shutil.rmtree(profile, ignore_errors=True)

    Show more

    html_mcp_web/pptx_export.py, line 1254

    proc = subprocess.Popen(

    html_mcp_web/pptx_export.py, line 1362

    shutil.rmtree(profile, ignore_errors=True)

    html_mcp_web/server.py, line 362

    result = subprocess.run(

    html_mcp_web/server.py, line 1074

    shutil.rmtree(profile, ignore_errors=True)

    html_mcp_web/server.py, line 1645

    shutil.rmtree(profile, ignore_errors=True)

  • Install and update

    Pass

    No install-time script found, and dependencies are pinned or absent.

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    html_mcp_web/mcp_server.py, line 492

    f" out=$(curl -sf -D \"$headers\" --max-time 60 \"http://127.0.0.1:{port}/wait-review\"); rc=$?\n"

    html_mcp_web/mcp_server.py, line 499

    f" [ -n \"$press\" ] && curl -sf -X POST \"http://127.0.0.1:{port}/wait-review/ack?upto=$press\" >/dev/null\n"

    html_mcp_web/mcp_server.py, line 502

    " if [ $gone -eq 0 ]; then deliver \"[gone] review server unreachable (curl exit $rc); waiting for it\"; gone=1; fi\n"

    Show more

    html_mcp_web/project_server.py, line 39

    with urllib.request.urlopen(f"http://127.0.0.1:{self.port}/state", timeout=0.5) as response:

    html_mcp_web/static/viewer.js, line 202

    const response = await fetch(`${artifactBase()}/download/pptx`);

    html_mcp_web/static/viewer.js, line 250

    const response = await fetch(path, options);

    html_mcp_web/static/viewer.js, line 406

    const response = await fetch(`${artifactBase()}/source`, {

    html_mcp_web/static/viewer.js, line 1894

    const response = await fetch(url);

    html_mcp_web/static/viewer.js, line 2212

    const socket = new WebSocket(`${protocol}//${location.host}/ws`);

  • Secrets

    Pass

    No read of a credential file or secret environment variable found.

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Concern

    contains an encoded blob in a file that should be readable. contains a minified payload.

    OBFUSCATION_ENCODED_BLOB OBFUSCATION_MINIFIED_PAYLOAD

    html_mcp_web/static/ace/ace.js, line 1

    (function(){function o(n){var i=e;n&&(e[n]||(e[n]={}),i=e[n]);if(!i.define||!i.define.packaged)t.original=i.define,i.define=t,i.define.packaged=!0;if(!i.require||!i.require.package

    html_mcp_web/static/ace/ext-searchbox.js, line 1

    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA4AAAAcCAYAAABRVo5BAAAAZ0lEQVR42u2SUQrAMAhDvazn8OjZBilCkYVVxiis8H4CT0VrAJb4WHT3C5xU2a2IQZXJjiQIRMdkEoJ5Q2yMqpfDIo+XY4

    html_mcp_web/static/ace/mode-css.js, line 1

    ace.define("ace/mode/css_highlight_rules",["require","exports","module","ace/lib/oop","ace/lib/lang","ace/mode/text_highlight_rules"],function(e,t,n){"use strict";var r=e("../lib/o

    Show more

    html_mcp_web/static/ace/mode-html.js, line 1

    ace.define("ace/mode/jsdoc_comment_highlight_rules",["require","exports","module","ace/lib/oop","ace/mode/text_highlight_rules"],function(e,t,n){"use strict";var r=e("../lib/oop"),

    html_mcp_web/static/ace/mode-javascript.js, line 1

    ace.define("ace/mode/jsdoc_comment_highlight_rules",["require","exports","module","ace/lib/oop","ace/mode/text_highlight_rules"],function(e,t,n){"use strict";var r=e("../lib/oop"),

    html_mcp_web/static/ace/mode-xml.js, line 1

    ace.define("ace/mode/xml_highlight_rules",["require","exports","module","ace/lib/oop","ace/mode/text_highlight_rules"],function(e,t,n){"use strict";var r=e("../lib/oop"),i=e("./tex

    tests/test_browser.py, line 1

    import json

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

Note

Hygiene check of commit e76192dc4f05. requests shell access. No manifest field names shell or command execution. can delete files. can reach a host that is not written as a fixed address. contains an encoded blob in a file that should be readable. contains a minified payload.

Date and source

Date checked:

View source

github.com

Commit graded: e76192dc4f0591b0245f4860b93ac85ef2a201d3

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen