@readystack/webfont-license-audit@1.0.4
Not affiliated with ReadyStack (readystack.dev). No new versions are published here. These tools continue under the name Rulestamp, by the team behind getreadystack.com.
The 12 licence questions a foundry audit letter asks, run against your CSS
AI Security Review
scanned 4d ago · by lpm-firewall-aiThe package sends undisclosed runtime usage telemetry by default in interactive sessions, although it limits the payload to basic event metadata and offers opt-outs. This warrants a warning, but the reviewed code does not show credential theft or project-data exfiltration.
Static reason
High-risk behavior combination matched malicious policy.
Trigger
A user runs the CLI in a terminal or MCP session; usage events follow free scans, and paywall events follow license checks without a key or with an invalid key.
Impact
The vendor can learn that the tool was used and whether its paywall was reached; no scanned content or unrelated credentials were identified in the event payload.
Mechanism
The package posts the event type, package slug, source, and reason to getreadystack.com. The source provides opt-out environment variables, but the README does not disclose this telemetry.
AI rationale
The package sends undisclosed runtime usage telemetry by default in interactive sessions, although it limits the payload to basic event metadata and offers opt-outs. This warrants a warning, but the reviewed code does not show credential theft or project-data exfiltration.
Evidence
cli.jslicense.js~/.config/readystack/webfont-license-audit.json (or READYSTACK_HOME/webfont-license-audit.json)
Network endpoints4
getreadystack.com/api/evgetreadystack.com/api/licgetreadystack.com/api/rules/<slug>?key=<license>api.polar.sh/v1/customer-portal/license-keys/validate
Decision evidence
public snapshotAI called this Suspicious at 94.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- A free CLI scan calls pingUse() after it finishes, and that event is sent to the vendor’s /api/ev endpoint.
- The event contains only the event type, package slug, CLI/MCP source, and use or paywall reason; it is gated by terminal/MCP use and can be disabled with documented environment variables in the source.
- License checks send a supplied or stored license key to the vendor’s license endpoint for validation.
Evidence against
- The event payload does not include scanned file contents, paths, credentials, or environment values.
- License validation and rule-feed requests go to the package vendor or the identified license provider and serve licensing or product-rule functions.
- The package exposes a CLI for scanning font-license issues, and the flagged behavior is not triggered by an install lifecycle script.
Behavioral surface
EnvironmentVarsFilesystemNetwork
HighEntropyStringsUrlStrings
Source & flagged code
5 flaggedlicense.jsView file
2'use strict';
L3: const https = require('https'), fs = require('fs'), path = require('path'), os = require('os');
L4: const ORG_ID = 'a5cdf664-d8e7-4f87-8895-056717aaba17';
...
L9: const RECHECK_MS = 7 * 24 * 3600 * 1000; // re-ask Polar every 7 days (refunds / cancellations)
L10: function storePath() { return path.join(process.env.READYSTACK_HOME || path.join(os.homedir(), '.config', 'readystack'), SLUG + '.json'); }
L11: function load() { try { return JSON.parse(fs.readFileSync(storePath(), 'utf8')); } catch (e) { return {}; } }
L12: function save(o) { try { fs.mkdirSync(path.dirname(storePath()), { recursive: true }); fs.writeFileSync(storePath(), JSON.stringify(o)); } catch (e) { /* read-only home: still work...
...
L33: req.on('error', function () { resolve({ ok: false, offline:
Critical
Credential Exfiltration
Source appears to send environment or credential material to an external endpoint.
license.jsView on unpkg · L22Trigger-reachable chain: manifest.bin -> cli.js -> license.js
L2: 'use strict';
L3: const https = require('https'), fs = require('fs'), path = require('path'), os = require('os');
L4: const ORG_ID = 'a5cdf664-d8e7-4f87-8895-056717aaba17';
...
L9: const RECHECK_MS = 7 * 24 * 3600 * 1000; // re-ask Polar every 7 days (refunds / cancellations)
L10: function storePath() { return path.join(process.env.READYSTACK_HOME || path.join(os.homedir(), '.config', 'readystack'), SLUG + '.json'); }
L11: function load() { try { return JSON.parse(fs.readFileSync(storePath(), 'utf8')); } catch (e) { return {}; } }
L12: function save(o) { try { fs.mkdirSync(path.dirname(storePath()), { recursive: true }); fs.writeFileSync(storePath(), JSON.stringify(o)); } catch (e) { /* read-only home: still work...
...
L33
Findings
2 Critical2 High4 Medium4 Low
CriticalCredential Exfiltrationlicense.js
CriticalTrigger Reachable Dangerous Capabilitylicense.js
HighSandbox Evasion Gated Capabilitylicense.js
HighTrigger Reachable Credential Exfiltrationlicense.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
MediumAi Review Evidencecli.js
LowFilesystem
LowHigh Entropy Strings
LowUrl Strings
LowNo License
Affected versions and remediation
This report applies to @readystack/webfont-license-audit@1.0.4.
See all versions of @readystack/webfont-license-audit for other recorded verdicts.
- Review the evidence and your use of @readystack/webfont-license-audit@1.0.4 before allowing it. Restrict the permissions described in this report.
- Choose an independently verified alternative or release. This report does not establish that other versions are safe.
Evidence last updated: .
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