Versioned security assessment

Report ID: SA-A39A9171

7/23/2026, 12:07:22 PM

extension-stripe security assessment v3

Skill Security Certification Report

Audit History
Scanner version 3.0.0 Audit model: codex Latest published report
Skill name
extension-stripe
Version
v0.1.6
Maintainer
caffeinelabs
Source
github.com/caffeinelabs/skills/tree/main/skills/extension-stripe/
Coverage
1 Files scanned · 219 Lines analyzed
Policy version
skillstore-security-audit-policy-v1

Highest confirmed finding severity

High

2 confirmed security findings require attention.

Installation context

Check the current Skill page

This page summarizes report evidence only. The Skill page provides the canonical install advisory.

Open current Skill page

This report does not block or authorize the manifest or ZIP.

All 25 static findings are false positives caused by Markdown syntax, ordinary imports, template literals, and an informational link. Semantic review found client-controlled pricing and redirect URLs in the recommended checkout design.

Report position

Latest published report

Latest refers to the report sequence, not to artifact currentness.

Audit attestation

Active attestation

A public attestation is available for this exact report.

Human verification

Not verified

No human verification is recorded for this report.

Coverage

1 Files scanned · 219 Lines analyzed

2 items shown for review

Limitations

This report does not claim runtime or sandbox execution and does not prove the absence of side effects.

Evidence chain

Follow the evidence from source binding to the install contract. Available evidence supports verification; it is not a safety guarantee.

  1. Source

    Commit and path bound

  2. Artifact

    Content and tree hashes bound

  3. Audit

    Complete

  4. Install contract

    Open manifest to verify

    Open manifest

Capabilities observed

Observed means this report recorded supporting evidence. Not recorded does not prove that a capability is absent.

Contains scripts

May execute code included with the Skill.

Not recorded by this audit

Network access

May connect to external services.

Observed in 1 evidence location

Filesystem access

May read or write local files.

Observed in 2 evidence locations

Env variables

May read values from the process environment.

Not recorded by this audit

External commands

May invoke commands or programs outside the Skill.

Observed in 21 evidence locations

Risk findings

Confirmed security concerns are separated from items that still need review.

Confirmed security concerns (2)

RISK-001 High
SKILL.md:37-43SKILL.md:134-136
Client-Controlled Checkout Pricing
The public checkout method forwards caller-supplied ShoppingItem values, including price and currency, directly to Stripe without loading authoritative product data.
The documented type exposes priceInCents and the backend passes the caller-provided item array directly into createCheckoutSession without product lookup or validation.
RISK-002 Medium
SKILL.md:134-136SKILL.md:180-183
Unrestricted Checkout Redirect URLs
The public checkout method accepts success and cancellation URLs from callers without validating their schemes, hosts, ports, or paths.
The backend signature accepts both URLs as text and forwards them to Stripe without an allowlist; the frontend-generated values do not constrain direct backend callers.

Remediation

Suggested fixes recorded by this audit. Applying them is the maintainer’s responsibility.

  1. FIX-001
    High
    Checkout sessions accept client-supplied prices, descriptions, currencies, and quantities.
    Accept product identifiers and bounded quantities, then load authoritative product details and prices on the backend before creating a Stripe session.
  2. FIX-002
    Medium
    Checkout session callers can supply unrestricted success and cancellation URLs.
    Construct redirect URLs on the backend from an allowlisted application origin and reject every unapproved scheme, host, port, and path.

Expert evidence

Immutable subject identity, scanner metadata, dismissed matches, and source-level evidence.

Artifact subject

Marketplace commit
a39a91716eadede5f4cdefd78178fed4e837a128
Content hash
d5ee6ff3000bde71660823dfacf3763e77c6618a4565d12912b27996176dbfc9
Tree hash
552430447da3cedeef547fd7a1c60d10b826d38fbe0b1b9f4a7dfa6e9854778a
Skill path
skills/caffeinelabs/extension-stripe
Audit payload hash
bdd99c7a9b3b14de807bcbc4ec779f8c

Analysis metadata

Audit model: codex

Analysis state: Complete

Scope is limited to the recorded files, lines, methods, and evidence. No runtime or sandbox execution is claimed.

Verify and export

JSON report Signed attestation CITATION.cff SARIF 2.1.0 Signed installation manifest Source

The manifest and lockfile bind install artifacts to cryptographic hashes. This integrity claim is separate from the security assessment.

Audit attestation: active