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Security audit

Contacts and Follow-up Desk

Security checks for vulnerabilities and agentic risk

Overview

The skill provides a clearly scoped local contact book with controlled imports and merges, with no evidence of hidden uploads or credential use.

Keep the local contact database and exports private, review import previews, and back up records before merging because source records are removed. This local workflow needs no account credentials. Consider a fixed installer version for reproducible installation.

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
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (5)

MCP server referenced without pinned version: 'npx clawhub'.

Medium
Category
MCP Rug Pull
Confidence
95% confidence
Finding

The documented command uses npx clawhub@latest, which downloads and executes a mutable package version rather than a reviewed, pinned release; the reference is an installer CLI, not an MCP server as the finding claims. A compromised future release could execute with the user's permissions and access workspace data, including contact information, although this README shows no evidence of malicious intent or actual compromise.

Content

No source excerpt is available for this finding.

MCP server referenced without pinned version: 'npx clawhub'.

Medium
Category
MCP Rug Pull
Confidence
94% confidence
Finding

The recommended command runs clawhub@latest through npx, allowing a changing, unreviewed package version to execute with the installing user's permissions. A compromised future release could access workspace files or locally accessible contact data and credentials. This is an unpinned CLI dependency rather than an MCP server reference; the README shows no evidence of malicious intent or actual compromise.

Content

No source excerpt is available for this finding.

Skill declares no tool scope ('permissions' or 'allowed-tools') but code capabilities were detected: env, file_read, file_write, shell.

Medium
Category
MCP Least Privilege
Confidence
70% confidence
Finding

Without declared permissions the skill's intent is opaque and cannot be validated.

Content

No source excerpt is available for this finding.

The secret() helper reads credential environment variables, a capability outside the declared contact-management scope (L39–L42).

Medium
Category
Excessive Agency
Confidence
91% confidence
Finding

The helper retrieves an environment variable selected by configuration and returns its value, defaulting to a passwordEnv configuration key. Credential retrieval is not justified by the stated CSV/vCard import, duplicate review, merging, follow-up tracking, and address-book export functionality; this file does not demonstrate that the helper is invoked or that credentials are transmitted.

Content

No source excerpt is available for this finding.

Scope Creep

Low
Category
Excessive Agency
Confidence
70% confidence
Finding

Skill's behavior or capabilities extend beyond its stated purpose. Scope creep allows an agent to perform actions unrelated to its documented functionality, increasing the attack surface.

Content

Scanner excerpt · LICENSE (reported line 7)May include surrounding context.

text
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.