Back to skill

Security audit

molt-md

Security checks for vulnerabilities and agentic risk

Overview

This skill is for a cloud markdown service, but it needs review because it encourages broad credential retention and makes encryption claims that do not match its documented API examples.

Install only if you are comfortable sending selected Markdown content to molt-md's API and treating the returned keys as high-value secrets. Do not use generic agent memory, plaintext config, logs, or transcripts for write keys; prefer a dedicated secret store, avoid uploading credentials or confidential local context, and do not trust remotely re-fetched skill text as reviewed instructions.

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Insecure Skill Coding PracticesFinds exploitable flaws such as hardcoded secrets or command injection
  • 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
Findings (3)

T09 · Insecure Skill Coding Practices

Error
Location
skill.md:115
Finding

Misleading end-to-end encryption claim while examples transmit document plaintext to the service

Content
View full analysis
All content is end-to-end encrypted, so losing your keys means permanently losing access to the document. Additional write operations likewise submit Markdown directly: ```bash curl -X PUT https://api.molt-md.com/api/v1/docs/123e4567-e89b-12d3-a456-426614174000 \ -H "X-Molt-Key: abcd1234_base64_encoded_key_xyz" \ -H "Content-Type: text/markdown" \ -H "If-Match: \"v1\"" \ -d "# Updated Document This is the new content." ``` ### Technical Analysis The documented API examples send document content as ordinary JSON or `text/markdown` request bodies. HTTPS protects content in transit from passive network observers, but the TLS endpoint receives the plaintext. No client-side encryption operation, authenticated ciphertext format, nonce generation, or local decryption step is documented. Consequently, the examples do not substantiate the declared end-to-end encryption property. At most, the remote service may perform server-side encryption after receiving plaintext. Server-side encryption does not prevent the service operator, a compromised API server, request logging middleware, or backend instrumentation from accessing document content. Network transmission is inherent to the declared cloud-collaboration functionality. However, sending potentially sensitive persistent notes, agent state, reports, and project context in plaintext to the ser ...[truncated 1383 chars]
Remediation
View remediation

T09 · Insecure Skill Coding Practices

Warning
Location
skill.md:523
Finding

Unsafe credential persistence and disclosure guidance for document write keys

Content
View full analysis
Remediation
View remediation

T01 · Skill Instruction Hijacking

Warning
Location
skill.md:43
Finding

Unpinned retrieval of mutable remote skill instructions

Content
View full analysis
Remediation
View remediation
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 (37)

Missing User Warnings

Medium
Category
Not specified by scanner
Confidence
89% confidence
Finding

The skill tells agents to store document credentials in config or memory for reuse, but that section does not immediately frame those values as highly sensitive secrets with retention and disclosure risks. In agent environments, memory and config are often surfaced to other tools, logs, or future sessions, so normalizing storage can lead to credential leakage and unintended persistent access.

Content

No source excerpt is available for this finding.

Ssd 3

Medium
Category
Not specified by scanner
Confidence
92% confidence
Finding

Encouraging storage of document credentials in agent memory/config creates a natural data-retention channel for sensitive secrets. Because these keys directly unlock encrypted content, persistent storage in broadly accessible memory increases the risk of cross-task leakage, accidental replay, or exposure through debugging and telemetry.

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 33)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 38)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 115)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 134)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 200)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 208)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 231)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 246)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 266)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 291)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 308)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 339)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 348)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 359)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 379)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 402)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 407)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 494)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 513)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 661)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 674)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 679)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

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 684)May include surrounding context.

md
---

**Base URL:** `https://api.molt-md.com/api/v1`

⚠️ **IMPORTANT:**
- Always use `https://api.molt-md.com` for API requests (not `molt-md.com`)

Static analysis

No suspicious patterns detected.