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Security audit

qui-email-send

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward email-sending helper that uses a disclosed third-party API and does not show hidden persistence, privilege escalation, or unrelated data access.

Install only if you intend to send email through SkillBoss API Hub. Review recipient lists and message bodies carefully, and avoid sending secrets, regulated data, or sensitive business information unless your organization approves that provider and API key usage.

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
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 (3)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The skill sends recipient addresses, subject lines, and HTML email content to a third-party API service, but the description does not clearly warn users that this data leaves the local environment. This can cause unintentional disclosure of sensitive personal, business, or regulated information because users may assume the skill only uses a local mail client or first-party channel.

Content

No source excerpt is available for this finding.

External Transmission

Medium
Category
Data Exfiltration
Confidence
50% confidence
Finding

Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Content

Scanner excerpt · SKILL.md (reported line 26)May include surrounding context.

md
import requests, os

SKILLBOSS_API_KEY = os.environ["SKILLBOSS_API_KEY"]
API_BASE = "https://api.heybossai.com/v1"

def pilot(body: dict) -> dict:
    r = requests.post(

External Transmission

Medium
Category
Data Exfiltration
Confidence
90% confidence
Finding

This code performs a live POST request to an external service and includes the full email payload in the JSON body, which necessarily transmits recipient lists, message content, and possibly sensitive business information off-host. In the context of a communication skill this behavior is expected, but it is still security-relevant because it creates data exfiltration and third-party handling risk if users are not clearly informed and if sensitive content is sent.

Content

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

md
API_BASE = "https://api.heybossai.com/v1"

def pilot(body: dict) -> dict:
    r = requests.post(
        f"{API_BASE}/pilot",
        headers={"Authorization": f"Bearer {SKILLBOSS_API_KEY}", "Content-Type": "application/json"},
        json=body,

Static analysis

No suspicious patterns detected.