Grades are a hygiene check, not a security guarantee.

Claude Code, Plugin

sumup

SumUp payment integrations across terminal and online checkout flows.

Compatibility: Not stated.

Grade C

One Medium finding. Read the findings before installing.

Graded by PlugVetRubric v2

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

Rescanned at commit 6922c7052ae9, unchanged since the check below.

INSTALL_REMOTE_SCRIPT

Why this grade

  • INSTALL_REMOTE_SCRIPT Medium

    Fetches a script from the network and runs it (a pipe to a shell, or an install hook with a URL).

    .github/workflows/validate-skills.yaml, line 30 curl -fsSL https://claude.ai/install.sh | bash

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

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Serious

    install fetches a script from the network.

    INSTALL_REMOTE_SCRIPT

    .github/workflows/validate-skills.yaml, line 30

    curl -fsSL https://claude.ai/install.sh | bash

  • Network

    Concern

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

    NETWORK_NO_FIXED_HOST

    skills/sumup/references/checkout-widget/README.md, line 23

    curl -X POST https://api.sumup.com/v0.1/checkouts \

    skills/sumup/references/checkouts-api/README.md, line 15

    curl -X POST https://api.sumup.com/v0.1/checkouts \

    skills/sumup/references/cloud-api/README.md, line 17

    curl -X POST \

    Show more

    skills/sumup/references/cloud-api/README.md, line 29

    curl -X POST \

    skills/sumup/references/hosted-checkout/README.md, line 23

    curl -X POST https://api.sumup.com/v0.1/checkouts \

    skills/sumup-testing/SKILL.md, line 53

    curl -X POST "https://api.sumup.com/v0.1/checkouts" \

  • Secrets

    Note

    reads an environment variable.

    SECRETS_ENV_READ

    skills/sumup/references/hosted-checkout/README.md, line 44

    apiKey: process.env.SUMUP_API_KEY!,

    skills/sumup/references/webhooks-3ds/README.md, line 39

    .createHmac("sha256", process.env.SUMUP_WEBHOOK_SECRET!)

  • 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.

    OBFUSCATION_ENCODED_BLOB

    README.md, line 121

    [docs-badge]: https://img.shields.io/badge/SumUp-documentation-white.svg?logo=data:image/svg+xml;base64,PHN2ZyB3aWR0aD0iMjQiIGhlaWdodD0iMjQiIHZpZXdCb3g9IjAgMCAyNCAyNCIgZmlsbD0ibm9u

  • 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 6922c7052ae9. install fetches a script from the network. can reach a host that is not written as a fixed address. reads an environment variable. contains an encoded blob in a file that should be readable.

Date and source

Date checked:

View source

github.com

Commit graded: 6922c7052ae9d0be834f27361b785bd80e0829cc

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