Security audit

sutrena

Security checks for vulnerabilities and agentic risk

Overview

This skill is a hosted publishing helper that clearly sends page, form, and dashboard content to Sutrena to create live URLs, which matches its stated purpose.

Install this only if you are comfortable sending the website, form fields, dashboard data, and any later form submissions to Sutrena for hosting. Do not use it for confidential or regulated content unless you have reviewed Sutrena's policies and intend to publish or collect that data there.

A.I.G

Vulnerability Patterns

Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns

Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (2)

External Transmission

Medium

Category: Data Exfiltration
Confidence: 89% confidence
Finding: The skill's documented workflow begins with a POST request to an external service to obtain a trial API key and provisioning details, establishing immediate data transmission to a third party. In the context of a publishing skill this is expected functionality, but it is still security-relevant because subsequent use may expose user-provided content, generated pages, and collected form data to an external hosted platform without sufficient transparency.
Content: Scanner excerpt · SKILL.md (reported line 35)May include surrounding context.
Step 1: Get a free API key (no signup)

bash
curl -X POST https://sutrena.com/api/trial

Returns a key (st_trial_...), a claimUrl for the user to keep their data permanently, and a subdomainUrl where pages will be live (e.g. https://site-a1b2c3d4.sutrena.com).

Missing User Warnings