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Security audit

sendmux-management

Security checks for vulnerabilities and agentic risk

Overview

This skill provides disclosed Sendmux account-management guidance and includes appropriate safeguards for secrets and destructive actions.

Install this only if you intend to let an agent help administer a Sendmux account. Use scoped OAuth or the least-privileged key available, keep root keys in a secret store, and review confirmations carefully before deletions, suspensions, key changes, webhook secret rotations, or provider changes.

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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (2)

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 23)May include surrounding context.

md
## ClawHub account note

This ClawHub skill connects OpenClaw agents to Sendmux. Some workflows require a Sendmux account and an appropriate Sendmux API key or agent token. Sendmux account usage is external to ClawHub; do not ask users to paste secrets into chat.

Use this skill for team administration with an `smx_root_` key or a REST OAuth grant with Management access.

Autonomous Decision Making

Medium
Category
Excessive Agency
Confidence
80% confidence
Finding

Skill enables autonomous high-impact decisions without human-in-the-loop verification. Critical operations (destructive commands, financial transactions, data deletion) should require explicit user confirmation.

Content

Scanner excerpt · SKILL.md (reported line 29)May include surrounding context.

md
## Boundaries

- Do not ask the user to paste an API key or one-time secret.
- Use a root API-key profile or OAuth profile with Management access and the operation's required scopes. OAuth remains limited by the authorising user's current team permissions.
- Agent self-registration does not require Management or a root key. Route a user who only wants an agent inbox to `sendmux-getting-started` and `sendmux agent:register`.
- Do not use management calls to read, triage, sync, or reply from a mailbox; route those tasks to `sendmux-mailbox-agent`.

Static analysis

No suspicious patterns detected.