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Security audit

SocialPost Auto

Security checks for vulnerabilities and agentic risk

Overview

This social-media automation skill is coherent, but it can schedule unattended public posts and auto-replies using account credentials without enough safeguards or clear permission boundaries.

Review this carefully before installing. Only use it with accounts where automated posting is acceptable, store credentials with restrictive permissions, test with non-public or low-risk content first, and avoid enabling cron or auto-replies until you have a clear way to preview, log, pause, and remove scheduled actions.

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
  • Rogue AgentSelf-Modification, Session Persistence
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (11)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

The README tells users to configure platform credentials but provides no guidance on secure secret handling, storage location hardening, rotation, or exclusion from logs/version control. In a skill that automates posting to public platforms, exposed credentials could let an attacker take over social accounts, publish content, or access linked platform data.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

The README encourages scheduled automated posting via cron without warning that this performs unattended actions against external services. If tasks are misconfigured, compromised, or left running unexpectedly, the skill could continuously publish unwanted content or violate account/platform policies without immediate user awareness.

Content

No source excerpt is available for this finding.

Session Persistence

Medium
Category
Rogue Agent
Confidence
85% confidence
Finding

Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Content

Scanner excerpt · README.md (reported line 27)May include surrounding context.

  1. (可选)添加 cron 定时任务:
    bash
    crontab -e
    # 添加 crontab-example.txt 中的内容
    

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
93% confidence
Finding

The skill advertises capabilities that imply reading/writing files and making networked posts, but it declares no explicit tool scope or permission boundaries. In an automation skill that can publish to external accounts and use local configuration secrets, this creates a meaningful risk of over-broad access, unintended actions, and misuse of credentials without clear user consent or runtime restriction.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The skill enables automated posting and comment auto-replies to public external platforms, but the description does not warn users about account-impacting actions, public visibility, scheduling risk, or automated engagement behavior. In this context, omissions are dangerous because users may trigger irreversible posts, spam-like behavior, or reputation-damaging replies without understanding the consequences.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The skill name and description are presented as a Chinese-language social media assistant, including China-specific platforms, but there is no indication that language/locale is optional or user-selectable. This can violate language/locale policy when a skill appears to prescribe a specific language experience without opt-in.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The description "社交媒体自动化运营助手" (social media automation operations assistant) is a broad capability statement rather than a specific activation scope. In a manifest file, this can create ambiguous triggering because it does not define clear boundaries, explicit trigger phrases, or exclusion conditions for when the skill should or should not run.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The script persists scheduled post content, platform, images, and timestamps to a plaintext file under the user's home directory without any notice, minimization, or protection. In a social-media automation skill, this can expose sensitive or unpublished campaign content to other local users, malware, backups, or accidental disclosure, especially because drafts may contain embargoed messaging or credentials-adjacent metadata.

Content

No source excerpt is available for this finding.

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The run path automatically publishes all due tasks with no interactive confirmation, dry-run mode, or final review step. In the context of a tool that posts to public social platforms, this increases the risk of unintended or maliciously queued content being published automatically, causing reputational harm, policy violations, or disclosure of sensitive information.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
94% confidence
Finding

The file's natural-language comments are written only in Chinese, which imposes a specific language/locale on users without any opt-in or indication that the skill is region-specific. This matches the policy-violation category for language or locale constraints expressed in natural language.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
72% confidence
Finding

The manifest description is written only in Chinese, which may imply a fixed language experience for users without any stated opt-in, fallback, or region-specific justification. Because language/locale policy violations can appear in config or manifest text, this is a potential issue if the skill is intended for general use.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.