Back to skill

Security audit

Web Notepad Free

Security checks for vulnerabilities and agentic risk

Overview

This is a mostly coherent form-management skill, but it asks agents to perform broad API and destructive data operations with unclear activation scope and inconsistent free-tier limits.

Install only if you intend to let the agent manage this specific online form service. Before using it, require the agent to ask for confirmation before publishing, updating, deleting forms, deleting submissions, exporting data, or sending collected personal information to the API; also verify which free-tier operations are actually supported.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
Findings (13)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
86% confidence
Finding

The skill advertises full lifecycle management including deletion near the top-level capability description, but does not pair that with an equally prominent warning that deletion is destructive and irreversible. In an agent context, this raises the risk of accidental data loss because destructive actions appear as routine operations.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
88% confidence
Finding

The skill claims certain operation modes in its instruction sections that conflict with earlier free-tier limitations. This can mislead an agent or user into attempting unsupported or higher-risk actions, increasing the chance of unexpected behavior, failed operations, or use of privileged paths not intended for the free edition.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Medium
Category
Not specified by scanner
Confidence
91% confidence
Finding

The inline documentation says config and output parameters support import/export-style operations despite later sections stating those features are unavailable in the free version. Contradictory capability guidance is dangerous because agents may invoke data-moving or integration behaviors that bypass expected restrictions or cause accidental disclosure/destructive actions.

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 98)May include surrounding context.

bash
# 1. 获取项目ID
curl -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \
  "https://api.web-notepad.example/v1/projects" | jq '.data[] | {projectId, name}'
# ...
# 2. 创建联系表单
curl -X POST -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \

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 103)May include surrounding context.

bash
# 1. 获取项目ID
curl -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \
  "https://api.web-notepad.example/v1/projects" | jq '.data[] | {projectId, name}'
# ...
# 2. 创建联系表单
curl -X POST -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \

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 118)May include surrounding context.

bash
# 1. 获取项目ID
curl -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \
  "https://api.web-notepad.example/v1/projects" | jq '.data[] | {projectId, name}'
# ...
# 2. 创建联系表单
curl -X POST -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \

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 130)May include surrounding context.

bash
# 1. 获取项目ID
curl -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \
  "https://api.web-notepad.example/v1/projects" | jq '.data[] | {projectId, name}'
# ...
# 2. 创建联系表单
curl -X POST -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \

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 146)May include surrounding context.

bash
# 1. 获取项目ID
curl -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \
  "https://api.web-notepad.example/v1/projects" | jq '.data[] | {projectId, name}'
# ...
# 2. 创建联系表单
curl -X POST -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \

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 157)May include surrounding context.

bash
# 1. 获取项目ID
curl -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \
  "https://api.web-notepad.example/v1/projects" | jq '.data[] | {projectId, name}'
# ...
# 2. 创建联系表单
curl -X POST -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \

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 193)May include surrounding context.

bash
# 1. 获取项目ID
curl -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \
  "https://api.web-notepad.example/v1/projects" | jq '.data[] | {projectId, name}'
# ...
# 2. 创建联系表单
curl -X POST -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \

External Transmission

Medium
Category
Data Exfiltration
Confidence
60% 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 101)May include surrounding context.

md
"https://api.web-notepad.example/v1/projects" | jq '.data[] | {projectId, name}'
# ...
# 2. 创建联系表单
curl -X POST -H "Authorization: Bearer $WEB_NOTEPAD_API_KEY" \
  -H "Content-Type: application/json" \
  "https://api.web-notepad.example/v1/forms" \
  -d '{

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The trigger condition is broad enough to activate on generic API integration or system connection requests, which may cause the skill to run outside its intended scope. Overbroad activation increases the likelihood of unintended external API calls, credential use, or destructive form operations when a narrower tool would be safer.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
84% confidence
Finding

The visible skill name, summary, descriptions, headings, examples, and user-facing guidance are entirely presented in Chinese, with no indication that users may choose another language or that the skill is intended only for a Chinese-speaking audience. This can violate language-choice policy when locale restriction is not made explicit or optional.

Content

No source excerpt is available for this finding.