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Security audit

Jadwal Sholat

Security checks for vulnerabilities and agentic risk

Overview

This is a straightforward Indonesian prayer-time lookup skill that contacts the disclosed MyQuran API and shows no hidden persistence, credential access, or destructive behavior.

Before installing, understand that city/location keywords, location IDs, dates/months, and timezone values you query may be sent to api.myquran.com. The skill is Indonesian-focused, and the monthly helper currently displays only a 7-day preview rather than a full month.

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
  • MCP Least PrivilegeUnderdeclared Capability, Wildcard Permission, Missing Permission Declaration
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (10)

Undeclared Tool Scope

Medium
Category
MCP Least Privilege
Confidence
91% confidence
Finding

The skill clearly relies on outbound network access to query a third-party API, but it does not declare any explicit tool scope or permissions. This creates a governance and least-privilege gap: consumers of the skill cannot easily see that external network access is required, which can lead to unintended data transmission or policy bypass in stricter environments.

Content

No source excerpt is available for this finding.

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 8)May include surrounding context.

md
import urllib.request
from typing import Any, Dict, List, Optional, Tuple

API_BASE = "https://api.myquran.com/v3"
DEFAULT_TZ = "Asia/Jakarta"

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 51)May include surrounding context.

md
import urllib.request
from typing import Any, Dict, List, Optional, Tuple

API_BASE = "https://api.myquran.com/v3"
DEFAULT_TZ = "Asia/Jakarta"

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 57)May include surrounding context.

md
import urllib.request
from typing import Any, Dict, List, Optional, Tuple

API_BASE = "https://api.myquran.com/v3"
DEFAULT_TZ = "Asia/Jakarta"

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 64)May include surrounding context.

md
import urllib.request
from typing import Any, Dict, List, Optional, Tuple

API_BASE = "https://api.myquran.com/v3"
DEFAULT_TZ = "Asia/Jakarta"

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 67)May include surrounding context.

md
import urllib.request
from typing import Any, Dict, List, Optional, Tuple

API_BASE = "https://api.myquran.com/v3"
DEFAULT_TZ = "Asia/Jakarta"

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 · scripts/myquran_sholat.py (reported line 27)May include surrounding context.

python
import urllib.request
from typing import Any, Dict, List, Optional, Tuple

API_BASE = "https://api.myquran.com/v3"
DEFAULT_TZ = "Asia/Jakarta"

Description-Behavior Mismatch

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The manifest says the skill can provide jadwal sholat for '1 bulan', implying a full monthly schedule. However, the monthly command explicitly limits output to the first 7 days and labels it as a preview, so the implemented behavior is narrower than the stated capability.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
91% confidence
Finding

The module docstring and command descriptions are written entirely in Indonesian, and user-facing messages throughout the script also appear only in Indonesian. The policy allows locale constraints when they are explicitly justified, but this file does not state that the skill is intentionally limited to Indonesian-speaking users or offer any language opt-in.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Low
Category
Not specified by scanner
Confidence
95% confidence
Finding

The docstring advertises commands 'id-tanggal' and 'id-bulan', but the parser only implements a single 'id-period' subcommand. This is an active documentation-to-code mismatch that can mislead callers about the interface and supported operations.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.