Grades are a hygiene check, not a security guarantee.

MCP, MCP server

Flash

Spaced-repetition flashcards your AI writes, quizzes you on by voice, and schedules with FSRS.

Compatibility: Not stated.

Grade D

Two or more Medium findings, or a High finding. 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.

Rescanned at commit a80ba6df8e1e, unchanged since the check below.

PERMISSION_SHELL_UNDECLARED NETWORK_HOST_FROM_INPUT

Why this grade

  • PERMISSION_SHELL_UNDECLARED Medium

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

    tools/flash-tts/flash_tts/engine.py, line 187 proc = subprocess.run(cmd, input=pcm, capture_output=True, timeout=120, check=False)

  • NETWORK_HOST_FROM_INPUT Medium

    A file takes a URL or endpoint as input and has no fixed host list.

    crates/flash-server/src/ext.rs, line 203 /// Site-root JSON the platforms fetch (app association files).

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.

    PERMISSION_SHELL_UNDECLARED

    tools/flash-tts/flash_tts/engine.py, line 187

    proc = subprocess.run(cmd, input=pcm, capture_output=True, timeout=120, check=False)

  • Install and update

    Pass

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

  • Network

    Serious

    accepts a host from input, with no fixed list in this file.

    NETWORK_HOST_FROM_INPUT

    crates/flash-server/src/ext.rs, line 203

    /// Site-root JSON the platforms fetch (app association files).

    crates/flash-server/src/web.rs, line 311

    /// subresource fetch (`fetch`). Headers are only inspected, never stored.

    crates/flash-server/src/tts/serve.rs, line 159

    fn fetch(state: &AppState, row: VoiceClipRow, etag: String, headers: &HeaderMap) -> Resolved {

    Show more

    crates/flash-server/src/tts/serve.rs, line 228

    fetch(state, row, format!("\"v{ref_id}\""), headers)

    crates/flash-server/src/tts/serve.rs, line 303

    fetch(state, row, etag, headers)

    crates/flash-server/static/ai.js, line 529

    fetch("/ai/sources", {

    crates/flash-server/static/ai.js, line 615

    fetch("/ai/sources/" + id, { method: "DELETE", credentials: "

    crates/flash-server/static/ai.js, line 673

    fetch("/ai/preflight", {

    crates/flash-server/static/editor.js, line 244

    fetch("/media", { method: "POST", body: fd, credentials: "

    crates/flash-server/static/speech.js, line 251

    var p = fetch("/voice/phrases?voice=" + encodeURIComponent(voiceId), {

    crates/flash-server/static/ui.js, line 134

    fetch(form.action, { method: "POST", keepalive: true, credentials: "

    tools/flash-tts/Dockerfile, line 40

    CMD python -c "import sys, urllib.request; sys.exit(0 if urllib.request.urlopen('http://127.0.0.1:8880/health', timeout=4).status == 200 else 1)"

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_PATH_DOTENV

    .env.example, line 1

    # Flash configuration. Copy to .env; docker compose reads it as-is, and a

    .gitignore, line 8

    *.db-shm

    README.md, line 35

    cp .env.example .env # set FLASH_BASE_URL to the URL you'll reach it at

    Show more

    docker-compose.yml, line 1

    # Flash, self-hosted. Copy .env.example to .env, set FLASH_BASE_URL, then

    docker-compose.yml, line 15

    env_file: .env

    docker-compose.yml, line 31

    # and FLASH_TTS_URL=http://flash-tts:8880 in .env. The image is built

    tools/flash-tts/README.md, line 26

    `FLASH_TTS_URL=http://flash-tts:8880` in `.env`.

  • Agent instructions

    Pass

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

  • Obfuscation

    Note

    a file was over the read cap and was not fully read.

    OBFUSCATION_FILE_OVER_READ_CAP

    crates/flash-server/static/katex/katex.min.js, line 1

    !function(e,t){"object"==typeof exports&&"object"==typeof module?module.exports=t():"function"==typeof define&&define.amd?define([],t):"object"==typeof exports?exports.katex=t():e.

  • 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 a80ba6df8e1e. requests shell access. No manifest field names shell or command execution. accepts a host from input, with no fixed list in this file. reads a credential or environment file. a file was over the read cap and was not fully read.

Date and source

Date checked:

View source

github.com

Commit graded: a80ba6df8e1e943cd9d72d9b9605f62a4bbe2a5c

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