@extenshi/cli@0.40.0
Pre-publish security scanner for browser extensions
AI Security Review
scanned 1d ago · by lpm-firewall-aiThe package asks before enabling runtime telemetry, but its error-reporting path appears capable of sending local paths outside the redaction rules despite promising users that paths are excluded. This is an undisclosed telemetry overcollection risk, not evidence of credential theft or a malicious install hook.
Static reason
One or more suspicious static signals were detected.; previous stored version diff introduced dangerous source
Trigger
A user accepts telemetry, then a command reports an error whose message or stack contains a path not covered by redaction.
Impact
Local path details could reach the analytics service beyond what the consent prompt describes.
Mechanism
The CLI submits sanitized exception messages and stacks to PostHog; the sanitizer strips home-directory paths but does not show broader path removal.
AI rationale
The package asks before enabling runtime telemetry, but its error-reporting path appears capable of sending local paths outside the redaction rules despite promising users that paths are excluded. This is an undisclosed telemetry overcollection risk, not evidence of credential theft or a malicious install hook.
Evidence
dist/telemetry-consent.jsdist/telemetry.jsdist/command-lifecycle.js~/.extenshi/config.json
Network endpoints1
eu.i.posthog.com
Decision evidence
public snapshotAI called this Suspicious at 81.0% confidence as Dangerous Capability with medium false-positive risk.
Evidence for warning
- Telemetry consent text promises that file paths are never sent.
- Error telemetry sends sanitized exception messages and stacks; redaction visibly strips home-directory paths but does not establish that other paths are removed.
- The package runs postinstall telemetry only when the config records telemetry:true.
Evidence against
- The CLI asks for telemetry consent and provides an off command.
- The postinstall script exits unless prior positive consent is recorded.
- The package is a CLI security scanner, and its project/API requests are consistent with that purpose.
Behavioral surface
ChildProcessCryptoDynamicRequireEnvironmentVarsEvalFilesystemNetworkShell
HighEntropyStringsTelemetryUrlStrings
NoLicense
Source & flagged code
11 flaggedpackage.jsonView file
•scripts.postinstall = node scripts/postinstall.cjs
High
Install Time Lifecycle Scripts
Package defines install-time lifecycle scripts.
package.jsonView on unpkg•scripts.postinstall = node scripts/postinstall.cjs
Medium
Ambiguous Install Lifecycle Script
Install-time lifecycle script is not statically allowlisted and needs review.
package.jsonView on unpkgdist/login-runtime.jsView file
11*/
L12: import { spawn } from 'node:child_process';
L13: import http from 'node:http';
High
Child Process
Package source references child process execution.
dist/login-runtime.jsView on unpkg · L11Findings
1 Critical6 High5 Medium9 Low
CriticalPrevious Version Dangerous Deltadist/project.js
HighInstall Time Lifecycle Scriptspackage.json
HighChild Processdist/login-runtime.js
HighShelldist/analytics-init.js
HighSame File Env Network Executiondist/analytics-init.js#virtual:normalized:round1
HighRuntime Package Installdist/amo-source.js
HighSemantic Analysis Limiteddist/analytics-init.js#virtual:normalized:round1
MediumAmbiguous Install Lifecycle Scriptpackage.json
MediumDynamic Requiredist/screenshots.js
MediumNetwork
MediumEnvironment Vars
MediumStructural Risk Force Deep Review
Affected versions and remediation
This report applies to @extenshi/cli@0.40.0.
See all versions of @extenshi/cli for other recorded verdicts.
- Review the evidence and your use of @extenshi/cli@0.40.0 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: .
Think this verdict is wrong? Dispute it on GitHub or read how reports are produced.