Security audit

EspoCRM

Security checks for vulnerabilities and agentic risk

Overview

This EspoCRM skill fits its CRM purpose, but its first-time setup tells users or agents to run unverified remote installer scripts.

Review this before installing. The CRM actions are clearly disclosed, but do not run the provided remote installer commands blindly; prefer an official, version-pinned installation path with verification. Confirm exact payloads before create/update actions and give explicit approval before deletes.

A.I.G

Vulnerability Patterns

Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
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
Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

Findings (1)

T03 · Remote Payload Retrieval and Execution

Error

Location: SKILL.md:61
Finding: Unverified Remote Installation Scripts Are Executed Directly
Content: View full analysis
Remediation: View remediation
' echo ' install.sh' | sha256sum --check - less install.sh bash install.sh ``` 6. Provide an equivalent PowerShell process that downloads to a file, validates an Authenticode signature or pinned SHA-256 hash, and only then runs the verified artifact. 7. Run installation with ordinary user privileges unless a documented operation strictly requires elevation. Do not request broad or persistent permissions by default. 8. Document the expected files, executables, network destinations, and configuration changes made by the installer so users can assess its scope before running it. ]]>

SkillSpector

Vulnerability Patterns

Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access

Findings (2)

External Script Fetching

High

Category: Supply Chain
Confidence: 99% confidence
Finding: The skill instructs the agent to install software by piping a remotely fetched script directly into a shell (curl ... | bash). This creates a supply-chain and remote code execution risk: if the remote server, transport, or script is compromised, arbitrary code will run immediately on the host with the user's privileges.
Content: Scanner excerpt · SKILL.md (reported line 61)May include surrounding context.

oo: command not found — install the oo CLI (other platforms: https://cli.oomol.com/install-guide.md):

bash
curl -fsSL https://cli.oomol.com/install.sh | bash # macOS / Linux

powershell

Vague Triggers

Medium

Category: Not specified by scanner
Confidence: 96% confidence
Finding: The description says to use this skill for "ANY EspoCRM request" and "Whenever a task involves EspoCRM, use this skill," which is a very broad activation condition. It lacks clear scope boundaries or exclusion examples, increasing the chance of unintended invocation for loosely related EspoCRM tasks.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.