Back to skill

Security audit

Fetch the latest AI daily brief from imjuya/juya-ai-daily (GitHub) and return the Overview (summary) section.

Security checks for vulnerabilities and agentic risk

Overview

This skill does what it claims: fetches a public AI daily brief from GitHub and extracts summary text, with no persistence or hidden local changes.

Before installing, confirm you are comfortable with the skill making GitHub requests and optionally using your GitHub token for rate limits. If your token is highly privileged, prefer a low-scope token or leave it unset; also ensure node is available because the metadata only lists curl.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (4)

External Script Fetching

High
Category
Supply Chain
Confidence
90% confidence
Finding

Remote code is downloaded and executed. This bypasses code review and could introduce malicious code.

Content

Scanner excerpt · SKILL.md (reported line 48)May include surrounding context.

md
elif [ -n "${GH_TOKEN:-}" ]; then
    auth=(-H "Authorization: Bearer $GH_TOKEN")
  fi
  curl -fsSL "${auth[@]}" -H "Accept: application/vnd.github+json" "$API" | node -e '
    const fs = require("node:fs");
    const items = JSON.parse(fs.readFileSync(0, "utf8"));
    const candidates = items

External Script Fetching

High
Category
Supply Chain
Confidence
90% confidence
Finding

Remote code is downloaded and executed. This bypasses code review and could introduce malicious code.

Content

Scanner excerpt · SKILL.md (reported line 96)May include surrounding context.

md
elif [ -n "${GH_TOKEN:-}" ]; then
    auth=(-H "Authorization: Bearer $GH_TOKEN")
  fi
  curl -fsSL "${auth[@]}" -H "Accept: application/vnd.github+json" "$API" | node -e '
    const fs = require("node:fs");
    const items = JSON.parse(fs.readFileSync(0, "utf8"));
    const candidates = items

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 39)May include surrounding context.

bash
set -euo pipefail

API="https://api.github.com/repos/imjuya/juya-ai-daily/contents/BACKUP?ref=master"

latest_url="$(
  auth=()

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 88)May include surrounding context.

bash
set -euo pipefail

API="https://api.github.com/repos/imjuya/juya-ai-daily/contents/BACKUP?ref=master"

latest_url="$(
  auth=()