security-vuln-gauntlet

SUSPICIOUS: the skill is internally consistent, but its purpose is to equip an AI agent for vulnerability research and exploit PoC development, which is a high-risk offensive capability. It does not show malware behavior, credential theft, exfiltration, or supply-chain abuse in the provided text.

The endpoint directly uses a user-supplied query parameter to build a filesystem path and passes it to res.sendFile without enforcing that the resolved path stays within '/srv/reports'. This enables directory traversal (CWE-22) and potentially arbitrary file read for files accessible to the application process. No clear malware/backdoor behavior is evident in the snippet; the primary issue is a severe input-to-file-serving validation flaw.